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83fe078130
25 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Paul Eggert
|
5a82c74822 |
Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
|
||
Feng Xue
|
b68fabfbbc |
aarch64: Disable using DC ZVA in emag memset
* sysdeps/aarch64/multiarch/memset_base64.S (DC_ZVA_THRESHOLD):
Disable DC ZVA code if this macro is defined as zero.
* sysdeps/aarch64/multiarch/memset_emag.S (DC_ZVA_THRESHOLD):
Change to zero to disable using DC ZVA.
|
||
Anton Youdkevitch
|
32e902a94e |
aarch64: thunderx2 memmove performance improvements
The performance improvement is about 20%-30% for larger cases and about 1%-5% for smaller cases. Used SIMD load/store instead of GPR for large overlapping forward moves. Reused existing memcpy implementation for smaller or overlapping backward moves. Fixed the existing memcpy implementation to allow it to deal with the overlapping case. Simplified loop tails in the memcpy implementation - use branchless overlapping sequence of fixed length load/stores instead of branching depending on the size. A cleanup/optimization converting str's to stp's. Added __memmove_thunderx2 to the list of the available implementations. |
||
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Anton Youdkevitch
|
94e358f6d4 |
aarch64: thunderx2 memcpy implementation cleanup and streamlining
Here is the updated patch for improving the long unaligned code path (the one using "ext" instruction). 1. Always taken conditional branch at the beginning is removed. 2. Epilogue code is placed after the end of the loop to reduce the number of branches. 3. The redundant "mov" instructions inside the loop are gone due to the changed order of the registers in the "ext" instructions inside the loop, the prologue has additional "ext" instruction. 4.Updating count in the prologue was hoisted out as it is the same update for each prologue. 5. Invariant code of the loop epilogue was hoisted out. 6. As the current size of the ext chunk is exactly 16 instructions long "nop" was added at the beginning of the code sequence so that the loop entry for all the chunks be aligned. * sysdeps/aarch64/multiarch/memcpy_thunderx2.S: Cleanup branching and remove redundant code. |
||
Feng Xue
|
83d1cc42d8 |
aarch64: Optimized memchr specific to AmpereComputing emag
This version uses general register based memory instruction to load
data, because vector register based is slightly slower in emag.
Character-matching is performed on 16-byte (both size and alignment)
memory block in parallel each iteration.
* sysdeps/aarch64/memchr.S (__memchr): Rename to MEMCHR.
[!MEMCHR](MEMCHR): Set to __memchr.
* sysdeps/aarch64/multiarch/Makefile (sysdep_routines):
Add memchr_generic and memchr_nosimd.
* sysdeps/aarch64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add memchr ifuncs.
* sysdeps/aarch64/multiarch/memchr.c: New file.
* sysdeps/aarch64/multiarch/memchr_generic.S: Likewise.
* sysdeps/aarch64/multiarch/memchr_nosimd.S: Likewise.
|
||
|
Feng Xue
|
c7d3890ff5 |
aarch64: Optimized memset specific to AmpereComputing emag
This version uses general register based memory store instead of
vector register based, for the former is faster than the latter
in emag.
The fact that DC ZVA size in emag is 64-byte, is used by IFUNC
dispatch to select this memset, so that cost of runtime-check on
DC ZVA size can be saved.
* sysdeps/aarch64/multiarch/Makefile (sysdep_routines):
Add memset_emag.
* sysdeps/aarch64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add __memset_emag to memset ifunc.
* sysdeps/aarch64/multiarch/memset.c (libc_ifunc):
Add IS_EMAG check for ifunc dispatch.
* sysdeps/aarch64/multiarch/memset_base64.S: New file.
* sysdeps/aarch64/multiarch/memset_emag.S: New file.
|
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Wilco Dijkstra
|
02f440c1ef |
[AArch64] Add ifunc support for Ares
Add Ares to the midr_el0 list and support ifunc dispatch. Since Ares supports 2 128-bit loads/stores, use Neon registers for memcpy by selecting __memcpy_falkor by default (we should rename this to __memcpy_simd or similar). * manual/tunables.texi (glibc.cpu.name): Add ares tunable. * sysdeps/aarch64/multiarch/memcpy.c (__libc_memcpy): Use __memcpy_falkor for ares. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_ARES): Add new define. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list): Add ares cpu. |
||
Joseph Myers
|
04277e02d7 |
Update copyright dates with scripts/update-copyrights.
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise. |
||
Steve Ellcey
|
f0da0bcf8b | Remove extra space at end of line. | ||
|
Anton Youdkevitch
|
75c1aee500 |
aarch64: optimized memcpy implementation for thunderx2
Since aligned loads and stores are huge performance
advantage the implementation always tries to do aligned
access. Among the cases when src and dst addresses are
aligned or unaligned evenly there are cases of not evenly
unaligned src and dst. For such cases (if the length is
big enough) ext instruction is used to merge-and-shift
two memory chunks loaded from two adjacent aligned
locations and then the adjusted chunk gets stored to
aligned address.
Performance gain against the current T2 implementation:
memcpy-large: 65K-32M: +40% - +10%
memcpy-walk: 128-32M: +20% - +2%
|
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Siddhesh Poyarekar
|
436e4d5b96 |
[aarch64] Add an ASIMD variant of strlen for falkor
This variant of strlen uses vector loads and operations to reduce the size of the code and also eliminate the non-ascii fallback. This works very well for falkor because of its two vector units and efficient vector ops. In the best case it reduces latency of cases in bench-strlen by 48%, with gains throughout the benchmark. strlen-walk also sees uniform gains in the 5%-15% range. Overall the routine appears to work better than the stock one for falkor regardless of the benchmark, length of string or cache state. The same cannot be said of a53 and a72 though. a53 performance was greatly reduced and for a72 it was a bit of a mixed bag, slightly on the negative side but I reckon it might be fast in some situations. * sysdeps/aarch64/strlen.S (__strlen): Rename to STRLEN. [!STRLEN](STRLEN): Set to __strlen. * sysdeps/aarch64/multiarch/strlen.c: New file. * sysdeps/aarch64/multiarch/strlen_generic.S: Likewise. * sysdeps/aarch64/multiarch/strlen_asimd.S: Likewise. * sysdeps/aarch64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add strlen. * sysdeps/aarch64/multiarch/Makefile (sysdep_routines): Add strlen_generic and strlen_asimd. Reviewed-By: szabolcs.nagy@arm.com CC: pinskia@gmail.com |
||
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Siddhesh Poyarekar
|
0aec4c1d18 |
aarch64,falkor: Use vector registers for memcpy
Vector registers perform better than scalar register pairs for copying data so prefer them instead. This results in a time reduction of over 50% (i.e. 2x speed improvemnet) for some smaller sizes for memcpy-walk. Larger sizes show improvements of around 1% to 2%. memcpy-random shows a very small improvement, in the range of 1-2%. * sysdeps/aarch64/multiarch/memcpy_falkor.S (__memcpy_falkor): Use vector registers. |
||
|
Siddhesh Poyarekar
|
ce76a5cb8d |
aarch64,falkor: Use vector registers for memmove
Vector registers perform much better for moves compared to pairs of registers on falkor, so use them instead. This results in a time reduction of up to 50% (i.e. 2x improvement) for a lot of the smaller sizes, i.e. up to 1K in memmove-walk. Improvements for larger sizes are smaller, at about 1%-2%. * sysdeps/aarch64/multiarch/memmove_falkor.S (__memcpy_falkor): Use vector registers. |
||
Hongbo Zhang
|
fc2ba8037d |
aarch64: add HXT Phecda core memory operation ifuncs
Phecda is HXT semiconductor's CPU core, this patch adds memory operation ifuncs for it: sharing the same optimized implementation with Qualcomm's Falkor core. 2018-06-07 Minfeng Kang <minfeng.kang@hxt-semitech.com> Hongbo Zhang <hongbo.zhang@linaro.org> * sysdeps/aarch64/multiarch/memcpy.c (libc_ifunc): reuse __memcpy_falkor for phecda core. * sysdeps/aarch64/multiarch/memmove.c (libc_ifunc): reuse __memmove_falkor for phecda core. * sysdeps/aarch64/multiarch/memset.c (libc_ifunc): reuse __memset_falkor for phecda core. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c: add MIDR entry for phecda core. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_PHECDA): add macro to identify phecda core. |
||
|
Siddhesh Poyarekar
|
db725a458e |
aarch64,falkor: Ignore prefetcher tagging for smaller copies
For smaller and medium sized copies, the effect of hardware prefetching are not as dominant as instruction level parallelism. Hence it makes more sense to load data into multiple registers than to try and route them to the same prefetch unit. This is also the case for the loop exit where we are unable to latch on to the same prefetch unit anyway so it makes more sense to have data loaded in parallel. The performance results are a bit mixed with memcpy-random, with numbers jumping between -1% and +3%, i.e. the numbers don't seem repeatable. memcpy-walk sees a 70% improvement (i.e. > 2x) for 128 bytes and that improvement reduces down as the impact of the tail copy decreases in comparison to the loop. * sysdeps/aarch64/multiarch/memcpy_falkor.S (__memcpy_falkor): Use multiple registers to copy data in loop tail. |
||
|
Siddhesh Poyarekar
|
70c97f8493 |
aarch64,falkor: Ignore prefetcher hints for memmove tail
The tail of the copy loops are unable to train the falkor hardware prefetcher because they load from a different base compared to the hot loop. In this case avoid serializing the instructions by loading them into different registers. Also peel the last iteration of the loop into the tail (and have them use different registers) since it gives better performance for medium sizes. This results in performance improvements of between 3% and 20% over the current falkor implementation for sizes between 128 bytes and 1K on the memmove-walk benchmark, thus mostly covering the regressions seen against the generic memmove. * sysdeps/aarch64/multiarch/memmove_falkor.S (__memmove_falkor): Use multiple registers to move data in loop tail. |
||
|
Steve Ellcey
|
e9537dddc7 |
IFUNC for Cavium ThunderX2
* sysdeps/aarch64/multiarch/Makefile (sysdep_routines): Add memcpy_thunderx2. * sysdeps/aarch64/multiarch/ifunc-impl-list.c (MAX_IFUNC): Increment to 4. (__libc_ifunc_impl_list): Add __memcpy_thunderx2. * sysdeps/aarch64/multiarch/memcpy.c (libc_ifunc): Add IS_THUNDERX2 and IS_THUNDERX2PA checks. * sysdeps/aarch64/multiarch/memcpy_thunderx.S (USE_THUNDERX2): Use macro to set name appropriately. (memcpy): Use USE_THUNDERX2 macro to modify prefetches. * sysdeps/aarch64/multiarch/memcpy_thunderx2.S: New file. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_THUNDERX2PA): New macro. (IS_THUNDERX2): New macro. |
||
|
Joseph Myers
|
688903eb3e |
Update copyright dates with scripts/update-copyrights.
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise. |
||
|
Siddhesh Poyarekar
|
4c1d801a59 |
aarch64: Avoid hidden symbols for memcpy/memmove into static binaries
The __GI_* symbol aliases for __memcpy_generic are unnecessary since they're never used. Add them only for libc.so to avoid PLT. Maybe some time in future we need to evaluate the relative cost of PLT vs gains from multiarch memcpy implementations and take a call on whether to drop this completely. * sysdeps/aarch64/multiarch/memcpy_generic.S (__GI_memcpy): Define only for libc.so. |
||
|
Siddhesh Poyarekar
|
5a67c4fa01 |
aarch64: Optimized memset for falkor
The generic memset reads dczid_el0 on every memset. This has a
significant impact on falkor for a range of sizes because reading
dczid_el0 is slow.
The DZP bit in the dczid_el0 register does not change dynamically, so
it is safe to read once during program startup. With this patch
dczid_el0 is read once during startup and zva_size is cached. This is
used to invoke the falkor-specific memset; the generic memset routine
remains unchanged.
The gains due to this are significant for falkor, with run time
reductions as high as 48%. Here's a sample from the falkor tests:
Function: memset
Variant: walk
simple_memset __memset_falkor __memset_generic
=====================================================================
length=256, char=0: 139.96 (-698.28%) 9.07 ( 48.26%) 17.53
length=257, char=0: 140.50 (-699.03%) 9.53 ( 45.80%) 17.58
length=258, char=0: 140.96 (-703.95%) 9.58 ( 45.36%) 17.53
length=259, char=0: 141.56 (-705.16%) 9.53 ( 45.79%) 17.58
length=260, char=0: 142.15 (-710.76%) 9.57 ( 45.39%) 17.53
length=261, char=0: 142.50 (-710.39%) 9.53 ( 45.78%) 17.58
length=262, char=0: 142.97 (-715.09%) 9.57 ( 45.42%) 17.54
length=263, char=0: 143.51 (-716.18%) 9.53 ( 45.80%) 17.58
length=264, char=0: 143.93 (-720.55%) 9.58 ( 45.39%) 17.54
length=265, char=0: 144.56 (-722.07%) 9.53 ( 45.80%) 17.59
length=266, char=0: 144.98 (-726.42%) 9.58 ( 45.42%) 17.54
length=267, char=0: 145.53 (-727.53%) 9.53 ( 45.80%) 17.59
length=268, char=0: 146.25 (-731.81%) 9.53 ( 45.79%) 17.58
length=269, char=0: 146.52 (-735.39%) 9.53 ( 45.66%) 17.54
length=270, char=0: 146.97 (-735.81%) 9.53 ( 45.80%) 17.58
length=271, char=0: 147.54 (-741.08%) 9.58 ( 45.38%) 17.54
length=512, char=0: 268.26 (-1307.85%) 12.06 ( 36.71%) 19.05
length=513, char=0: 268.73 (-1273.89%) 13.56 ( 30.68%) 19.56
length=514, char=0: 269.31 (-1276.89%) 13.56 ( 30.68%) 19.56
length=515, char=0: 269.73 (-1279.05%) 13.56 ( 30.68%) 19.56
length=516, char=0: 270.34 (-1282.24%) 13.56 ( 30.67%) 19.56
length=517, char=0: 270.83 (-1284.71%) 13.56 ( 30.66%) 19.56
length=518, char=0: 271.20 (-1286.54%) 13.56 ( 30.67%) 19.56
length=519, char=0: 271.67 (-1288.67%) 13.65 ( 30.24%) 19.56
length=520, char=0: 272.14 (-1291.04%) 13.65 ( 30.22%) 19.56
length=521, char=0: 272.66 (-1293.69%) 13.65 ( 30.23%) 19.56
length=522, char=0: 273.14 (-1296.13%) 13.65 ( 30.20%) 19.56
length=523, char=0: 273.64 (-1298.75%) 13.65 ( 30.23%) 19.56
length=524, char=0: 274.34 (-1302.16%) 13.66 ( 30.20%) 19.57
length=525, char=0: 274.64 (-1297.78%) 13.56 ( 30.99%) 19.65
length=526, char=0: 275.20 (-1300.04%) 13.56 ( 31.01%) 19.66
length=527, char=0: 275.66 (-1302.86%) 13.56 ( 30.99%) 19.65
length=1024, char=0: 524.46 (-2169.75%) 20.12 ( 12.92%) 23.11
length=1025, char=0: 525.14 (-2124.63%) 21.62 ( 8.40%) 23.61
length=1026, char=0: 525.59 (-2125.36%) 21.88 ( 7.37%) 23.62
length=1027, char=0: 525.98 (-2127.14%) 21.62 ( 8.46%) 23.62
length=1028, char=0: 526.68 (-2131.10%) 21.62 ( 8.42%) 23.61
length=1029, char=0: 527.10 (-2131.70%) 21.79 ( 7.73%) 23.62
length=1030, char=0: 527.54 (-2118.51%) 21.62 ( 9.10%) 23.78
length=1031, char=0: 527.98 (-2136.37%) 21.62 ( 8.43%) 23.61
length=1032, char=0: 528.70 (-2139.38%) 21.62 ( 8.43%) 23.61
length=1033, char=0: 529.25 (-2124.37%) 21.62 ( 9.11%) 23.79
length=1034, char=0: 529.48 (-2142.95%) 21.62 ( 8.43%) 23.61
length=1035, char=0: 530.11 (-2145.13%) 21.62 ( 8.44%) 23.61
length=1036, char=0: 530.76 (-2147.10%) 21.79 ( 7.73%) 23.62
length=1037, char=0: 531.03 (-2149.45%) 21.62 ( 8.42%) 23.61
length=1038, char=0: 531.64 (-2151.87%) 21.62 ( 8.42%) 23.61
length=1039, char=0: 531.99 (-2151.63%) 21.80 ( 7.75%) 23.63
* sysdeps/aarch64/memset-reg.h: New file.
* sysdeps/aarch64/memset.S: Use it.
(__memset): Rename to MEMSET macro.
[ZVA_MACRO]: Use zva_macro.
* sysdeps/aarch64/multiarch/Makefile (sysdep_routines):
Add memset_generic and memset_falkor.
* sysdeps/aarch64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add memset ifuncs.
* sysdeps/aarch64/multiarch/init-arch.h (INIT_ARCH): New
local variable zva_size.
* sysdeps/aarch64/multiarch/memset.c: New file.
* sysdeps/aarch64/multiarch/memset_generic.S: New file.
* sysdeps/aarch64/multiarch/memset_falkor.S: New file.
* sysdeps/aarch64/multiarch/rtld-memset.S: New file.
* sysdeps/unix/sysv/linux/aarch64/cpu-features.c
(DCZID_DZP_MASK): New macro.
(DCZID_BS_MASK): Likewise.
(init_cpu_features): Read and set zva_size.
* sysdeps/unix/sysv/linux/aarch64/cpu-features.h
(struct cpu_features): New member zva_size.
|
||
|
Siddhesh Poyarekar
|
dd5bc7f1b3 |
aarch64: Optimized implementation of memmove for Qualcomm Falkor
This is an optimized memmove implementation for the Qualcomm Falkor
processor core. Due to the way the falkor memcpy needs to be written,
code cannot be easily shared between memmove and memcpy like in case
of other aarch64 memcpy implementations due to which this routine is
separate. The underlying principle is the same as that of memcpy
where it tries to use registers with the same lower 4 bits for
fetching the same stream, thus optimizing hardware prefetcher
performance.
The memcpy copy loop copies 64 bytes at a time using the same register
pair since that's the way to train the hardware prefetcher on the
falkor core. memmove cannot quite do that since it needs to avoid
overlaps, so it does the next best thing, i.e. has a 32 byte loop with
a 32 byte end (prefetch a loop ahead to account for overlapping
locations) with register pairs that alias so that they hit the same
prefetcher. Due to this difference in loop size, they have to
currently be separate implementations but efforts are on to try and
get memmove to fall back into memcpy whenever it can without simply
duplicating all of the code.
Performance:
The routine fares around 20-25% better than the generic memmove for
most medium to large sizes (i.e. > 128 bytes) for the new walking
memmove benchmark (memmove-walk) with an unexplained regression
between 1K and 2K. The minor regression is something worth looking
into for us, but the remaining gains are significant enough that we
would like this included upstream as we looking into the cause for the
regression. Here is a snippet of the numbers as generated from the
microbenchmark by the compare_strings script. Comparisons are against
__memmove_generic:
Function: memmove
Variant: walk
__memmove_thunderx __memmove_falkor __memmove_generic
========================================================================================================================
<snip>
length=16384: 12508800.00 ( 6.09%) 11486800.00 ( 13.76%) 13319600.00
length=16400: 13614200.00 ( -0.67%) 11585000.00 ( 14.33%) 13523600.00
length=16385: 13448400.00 ( 0.10%) 11732700.00 ( 12.84%) 13461200.00
length=16399: 13594100.00 ( -0.22%) 11859600.00 ( 12.57%) 13564400.00
length=16386: 13211600.00 ( 1.13%) 11503800.00 ( 13.91%) 13362400.00
length=16398: 13218600.00 ( 2.12%) 11573200.00 ( 14.30%) 13504700.00
length=16387: 13510900.00 ( -0.37%) 11744200.00 ( 12.76%) 13461300.00
length=16397: 13603700.00 ( -0.15%) 11878200.00 ( 12.55%) 13583200.00
length=16388: 13461700.00 ( -0.13%) 11558000.00 ( 14.03%) 13444100.00
length=16396: 13517500.00 ( -0.03%) 11561300.00 ( 14.45%) 13513900.00
length=16389: 13534100.00 ( 0.17%) 11756800.00 ( 13.28%) 13556900.00
length=16395: 13585600.00 ( 0.11%) 11791800.00 ( 13.30%) 13601200.00
length=16390: 13480100.00 ( -0.13%) 11685500.00 ( 13.20%) 13462100.00
length=16394: 13529900.00 ( -0.23%) 11549800.00 ( 14.43%) 13498200.00
length=16391: 13595400.00 ( -0.26%) 11768200.00 ( 13.22%) 13560600.00
length=16393: 13567000.00 ( 0.20%) 11779700.00 ( 13.35%) 13594700.00
length=32768: 71308800.00 ( -6.53%) 50220800.00 ( 24.98%) 66939200.00
length=32784: 72100800.00 (-11.55%) 50114100.00 ( 22.47%) 64636300.00
length=32769: 71767000.00 ( -7.10%) 51238400.00 ( 23.54%) 67010000.00
length=32783: 70113700.00 (-40.95%) 51129000.00 ( -2.78%) 49744400.00
length=32770: 71367600.00 ( -6.52%) 50244700.00 ( 25.01%) 67000900.00
length=32782: 64366700.00 ( 4.71%) 50101400.00 ( 25.83%) 67545600.00
length=32771: 71440100.00 ( -6.51%) 51263900.00 ( 23.57%) 67074900.00
length=32781: 66993000.00 ( 0.34%) 51108300.00 ( 23.97%) 67220300.00
length=32772: 71443900.00 (-60.50%) 50062100.00 (-12.47%) 44512600.00
length=32780: 71759100.00 ( -6.58%) 50263200.00 ( 25.35%) 67328600.00
length=32773: 71714900.00 (-33.21%) 51076600.00 ( 5.12%) 53835400.00
length=32779: 71756900.00 ( -6.56%) 51290800.00 ( 23.83%) 67337800.00
length=32774: 59689300.00 (-34.55%) 50068400.00 (-12.86%) 44363300.00
length=32778: 71847500.00 (-18.20%) 50084100.00 ( 17.61%) 60786500.00
length=32775: 71599300.00 ( -6.54%) 51278200.00 ( 23.70%) 67204800.00
length=32777: 71862900.00 (-60.85%) 51094000.00 (-14.36%) 44677900.00
length=65536: 282848000.00 ( -6.60%) 199187000.00 ( 24.93%) 265325000.00
length=65552: 243285000.00 (-41.61%) 198512000.00 (-15.54%) 171805000.00
length=65537: 255415000.00 (-23.47%) 202499000.00 ( 2.11%) 206858000.00
length=65551: 280122000.00 (-62.95%) 203349000.00 (-18.29%) 171911000.00
length=65538: 283676000.00 (-14.46%) 198368000.00 ( 19.96%) 247848000.00
length=65550: 275566000.00 (-51.76%) 198494000.00 ( -9.31%) 181581000.00
length=65539: 283699000.00 ( -6.58%) 203453000.00 ( 23.57%) 266195000.00
length=65549: 286572000.00 ( -6.65%) 202607000.00 ( 24.60%) 268712000.00
length=65540: 283710000.00 ( -6.59%) 199161000.00 ( 25.17%) 266160000.00
length=65548: 237573000.00 ( 11.48%) 198462000.00 ( 26.06%) 268395000.00
length=65541: 284150000.00 ( -6.58%) 203273000.00 ( 23.75%) 266600000.00
length=65547: 286250000.00 ( -6.70%) 202594000.00 ( 24.48%) 268263000.00
length=65542: 284167000.00 ( -6.60%) 199122000.00 ( 25.31%) 266584000.00
length=65546: 285656000.00 ( -6.59%) 198443000.00 ( 25.95%) 268002000.00
length=65543: 284600000.00 ( -6.58%) 203247000.00 ( 23.89%) 267030000.00
length=65545: 285665000.00 ( -6.40%) 202575000.00 ( 24.55%) 268472000.00
<snip>
* sysdeps/aarch64/multiarch/Makefile (sysdep_routines): Add
memmove_falkor.
* sysdeps/aarch64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Likewise.
* sysdeps/aarch64/multiarch/memmove.c: Likewise.
* sysdeps/aarch64/multiarch/memmove_falkor.S: New file.
|
||
|
Siddhesh Poyarekar
|
0e02b5107e | memcpy_falkor: Fix code style in comments | ||
|
Siddhesh Poyarekar
|
36ada5f681 |
aarch64: Optimized memcpy for Qualcomm Falkor processor
This is an optimized implementation of the memcpy routine that gives a significant gain in performance for all sizes of copies on the Qualcomm Falkor processor. A detailed rationale of the implementation is written in a comment in the patch. This implementation improves time for copies up to 128 bytes by up to 15% and for larger copies by up to 35% in the glibc microbenchmark. The memcpy-random benchmark sees improvements in all sizes in the range of 13%-18%. Here are the full numbers extracted from the glibc microbenchmark using the commands: ../benchtests/scripts/compare_strings.py benchtests/bench-memcpy.out \ ../benchtests/scripts/benchout_strings.schema.json \ -base=__memcpy_generic length align1 align2 ../benchtests/scripts/compare_strings.py benchtests/bench-memcpy-large.out \ ../benchtests/scripts/benchout_strings.schema.json \ -base=__memcpy_generic length align1 align2 ../benchtests/scripts/compare_strings.py benchtests/bench-memcpy-random.out \ ../benchtests/scripts/benchout_strings.schema.json \ -base=__memcpy_generic max-size Function: memcpy __memcpy_thunderx __memcpy_falkor __memcpy_generic Variant: default ================================================================================ length=1,align1=0,align2=0: 33.59 (-115.00%) 15.62 (0.00%) 15.62 length=1,align1=0,align2=0: 16.41 (-10.53%) 14.06 (5.26%) 14.84 length=1,align1=0,align2=0: 14.84 (0.00%) 14.84 (0.00%) 14.84 length=1,align1=0,align2=0: 15.62 (-5.26%) 14.06 (5.26%) 14.84 length=2,align1=0,align2=0: 15.62 (-5.26%) 14.06 (5.26%) 14.84 length=2,align1=1,align2=0: 15.62 (-5.26%) 14.06 (5.26%) 14.84 length=2,align1=0,align2=1: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=2,align1=1,align2=1: 14.84 (-5.56%) 14.06 (0.00%) 14.06 length=4,align1=0,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=4,align1=2,align2=0: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=4,align1=0,align2=2: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=4,align1=2,align2=2: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=8,align1=0,align2=0: 14.84 (-5.56%) 13.28 (5.56%) 14.06 length=8,align1=3,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=8,align1=0,align2=3: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=8,align1=3,align2=3: 13.28 (-6.25%) 13.28 (-6.25%) 12.50 length=16,align1=0,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=16,align1=4,align2=0: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=16,align1=0,align2=4: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=16,align1=4,align2=4: 13.28 (-6.25%) 12.50 (0.00%) 12.50 length=32,align1=0,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=32,align1=5,align2=0: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=32,align1=0,align2=5: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=32,align1=5,align2=5: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=64,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=64,align1=6,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=64,align1=0,align2=6: 14.06 (5.26%) 14.06 (5.26%) 14.84 length=64,align1=6,align2=6: 14.84 (-11.77%) 14.06 (-5.88%) 13.28 length=128,align1=0,align2=0: 17.19 (-4.76%) 14.84 (9.52%) 16.41 length=128,align1=7,align2=0: 16.41 (4.55%) 15.62 (9.09%) 17.19 length=128,align1=0,align2=7: 16.41 (0.00%) 14.06 (14.29%) 16.41 length=128,align1=7,align2=7: 16.41 (4.55%) 15.62 (9.09%) 17.19 length=256,align1=0,align2=0: 21.88 (-3.70%) 21.09 (0.00%) 21.09 length=256,align1=8,align2=0: 21.09 (-3.85%) 21.09 (-3.85%) 20.31 length=256,align1=0,align2=8: 20.31 (-4.00%) 20.31 (-4.00%) 19.53 length=256,align1=8,align2=8: 21.88 (-7.69%) 20.31 (0.00%) 20.31 length=512,align1=0,align2=0: 28.91 (-2.78%) 28.91 (-2.78%) 28.12 length=512,align1=9,align2=0: 30.47 (-2.63%) 30.47 (-2.63%) 29.69 length=512,align1=0,align2=9: 29.69 (0.00%) 29.69 (0.00%) 29.69 length=512,align1=9,align2=9: 28.12 (-2.86%) 28.12 (-2.86%) 27.34 length=1024,align1=0,align2=0: 44.53 (0.00%) 44.53 (0.00%) 44.53 length=1024,align1=10,align2=0: 50.00 (0.00%) 50.00 (0.00%) 50.00 length=1024,align1=0,align2=10: 49.22 (1.56%) 50.78 (-1.56%) 50.00 length=1024,align1=10,align2=10: 44.53 (-1.79%) 43.75 (0.00%) 43.75 length=2048,align1=0,align2=0: 77.34 (-1.02%) 76.56 (0.00%) 76.56 length=2048,align1=11,align2=0: 89.84 (0.00%) 89.84 (0.00%) 89.84 length=2048,align1=0,align2=11: 89.84 (0.00%) 89.84 (0.00%) 89.84 length=2048,align1=11,align2=11: 75.78 (0.00%) 75.78 (0.00%) 75.78 length=4096,align1=0,align2=0: 141.41 (-0.56%) 140.62 (0.00%) 140.62 length=4096,align1=12,align2=0: 171.09 (-0.46%) 170.31 (0.00%) 170.31 length=4096,align1=0,align2=12: 170.31 (0.00%) 170.31 (0.00%) 170.31 length=4096,align1=12,align2=12: 140.62 (0.00%) 140.62 (0.00%) 140.62 length=8192,align1=0,align2=0: 278.91 (-0.28%) 275.78 (0.84%) 278.12 length=8192,align1=13,align2=0: 338.28 (0.23%) 335.94 (0.92%) 339.06 length=8192,align1=0,align2=13: 338.28 (0.00%) 455.47 (-34.64%) 338.28 length=8192,align1=13,align2=13: 278.12 (-0.28%) 275.78 (0.56%) 277.34 length=16384,align1=0,align2=0: 535.94 (-0.15%) 531.25 (0.73%) 535.16 length=16384,align1=14,align2=0: 659.38 (0.12%) 659.38 (0.12%) 660.16 length=16384,align1=0,align2=14: 659.38 (0.00%) 657.03 (0.36%) 659.38 length=16384,align1=14,align2=14: 535.16 (0.44%) 532.81 (0.87%) 537.50 length=32768,align1=0,align2=0: 1260.94 (10.68%) 1121.88 (20.53%) 1411.72 length=32768,align1=15,align2=0: 1368.75 (10.02%) 1376.56 (9.50%) 1521.09 length=32768,align1=0,align2=15: 1333.59 (10.91%) 1373.44 (8.25%) 1496.88 length=32768,align1=15,align2=15: 1256.25 (13.96%) 1125.78 (22.90%) 1460.16 length=65536,align1=0,align2=0: 2853.91 (30.11%) 2589.06 (36.60%) 4083.59 length=65536,align1=16,align2=0: 2850.00 (30.14%) 2589.84 (36.52%) 4079.69 length=65536,align1=0,align2=16: 2853.12 (30.60%) 2589.84 (37.00%) 4110.94 length=65536,align1=16,align2=16: 2850.78 (30.07%) 2589.06 (36.49%) 4076.56 length=0,align1=0,align2=0: 15.62 (-5.26%) 16.41 (-10.53%) 14.84 length=0,align1=0,align2=0: 14.84 (-5.56%) 14.84 (-5.56%) 14.06 length=0,align1=0,align2=0: 14.84 (0.00%) 14.84 (0.00%) 14.84 length=0,align1=0,align2=0: 16.41 (-16.67%) 14.84 (-5.56%) 14.06 length=1,align1=0,align2=0: 15.62 (4.76%) 15.62 (4.76%) 16.41 length=1,align1=1,align2=0: 15.62 (0.00%) 14.84 (5.00%) 15.62 length=1,align1=0,align2=1: 14.84 (0.00%) 14.84 (0.00%) 14.84 length=1,align1=1,align2=1: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=2,align1=0,align2=0: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=2,align1=2,align2=0: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=2,align1=0,align2=2: 14.84 (-5.56%) 14.06 (0.00%) 14.06 length=2,align1=2,align2=2: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=3,align1=0,align2=0: 14.84 (0.00%) 14.84 (0.00%) 14.84 length=3,align1=3,align2=0: 14.84 (-5.56%) 14.06 (0.00%) 14.06 length=3,align1=0,align2=3: 15.62 (-11.11%) 14.06 (0.00%) 14.06 length=3,align1=3,align2=3: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=4,align1=0,align2=0: 17.97 (-27.78%) 14.06 (0.00%) 14.06 length=4,align1=4,align2=0: 13.28 (5.56%) 14.06 (0.00%) 14.06 length=4,align1=0,align2=4: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=4,align1=4,align2=4: 13.28 (5.56%) 13.28 (5.56%) 14.06 length=5,align1=0,align2=0: 13.28 (5.56%) 13.28 (5.56%) 14.06 length=5,align1=5,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=5,align1=0,align2=5: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=5,align1=5,align2=5: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=6,align1=0,align2=0: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=6,align1=6,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=6,align1=0,align2=6: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=6,align1=6,align2=6: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=7,align1=0,align2=0: 14.84 (-11.77%) 14.06 (-5.88%) 13.28 length=7,align1=7,align2=0: 13.28 (0.00%) 14.06 (-5.88%) 13.28 length=7,align1=0,align2=7: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=7,align1=7,align2=7: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=8,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=8,align1=8,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=8,align1=0,align2=8: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=8,align1=8,align2=8: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=9,align1=0,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=9,align1=9,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=9,align1=0,align2=9: 13.28 (0.00%) 14.06 (-5.88%) 13.28 length=9,align1=9,align2=9: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=10,align1=0,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=10,align1=10,align2=0: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=10,align1=0,align2=10: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=10,align1=10,align2=10: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=11,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=11,align1=11,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=11,align1=0,align2=11: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=11,align1=11,align2=11: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=12,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=12,align1=12,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=12,align1=0,align2=12: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=12,align1=12,align2=12: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=13,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=13,align1=13,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=13,align1=0,align2=13: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=13,align1=13,align2=13: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=14,align1=0,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=14,align1=14,align2=0: 13.28 (5.56%) 13.28 (5.56%) 14.06 length=14,align1=0,align2=14: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=14,align1=14,align2=14: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=15,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=15,align1=15,align2=0: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=15,align1=0,align2=15: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=15,align1=15,align2=15: 13.28 (0.00%) 14.06 (-5.88%) 13.28 length=16,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=16,align1=16,align2=0: 13.28 (5.56%) 14.06 (0.00%) 14.06 length=16,align1=0,align2=16: 14.84 (-11.77%) 13.28 (0.00%) 13.28 length=16,align1=16,align2=16: 13.28 (-6.25%) 12.50 (0.00%) 12.50 length=17,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=17,align1=17,align2=0: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=17,align1=0,align2=17: 14.84 (-5.56%) 12.50 (11.11%) 14.06 length=17,align1=17,align2=17: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=18,align1=0,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=18,align1=18,align2=0: 13.28 (5.56%) 12.50 (11.11%) 14.06 length=18,align1=0,align2=18: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=18,align1=18,align2=18: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=19,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=19,align1=19,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=19,align1=0,align2=19: 14.84 (-5.56%) 12.50 (11.11%) 14.06 length=19,align1=19,align2=19: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=20,align1=0,align2=0: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=20,align1=20,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=20,align1=0,align2=20: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=20,align1=20,align2=20: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=21,align1=0,align2=0: 14.84 (-5.56%) 12.50 (11.11%) 14.06 length=21,align1=21,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=21,align1=0,align2=21: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=21,align1=21,align2=21: 13.28 (5.56%) 13.28 (5.56%) 14.06 length=22,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=22,align1=22,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=22,align1=0,align2=22: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=22,align1=22,align2=22: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=23,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=23,align1=23,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=23,align1=0,align2=23: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=23,align1=23,align2=23: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=24,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=24,align1=24,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=24,align1=0,align2=24: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=24,align1=24,align2=24: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=25,align1=0,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=25,align1=25,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=25,align1=0,align2=25: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=25,align1=25,align2=25: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=26,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=26,align1=26,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=26,align1=0,align2=26: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=26,align1=26,align2=26: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=27,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=27,align1=27,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=27,align1=0,align2=27: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=27,align1=27,align2=27: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=28,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=28,align1=28,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=28,align1=0,align2=28: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=28,align1=28,align2=28: 14.84 (-11.77%) 13.28 (0.00%) 13.28 length=29,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=29,align1=29,align2=0: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=29,align1=0,align2=29: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=29,align1=29,align2=29: 13.28 (5.56%) 12.50 (11.11%) 14.06 length=30,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=30,align1=30,align2=0: 13.28 (5.56%) 12.50 (11.11%) 14.06 length=30,align1=0,align2=30: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=30,align1=30,align2=30: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=31,align1=0,align2=0: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=31,align1=31,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=31,align1=0,align2=31: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=31,align1=31,align2=31: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=48,align1=0,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=48,align1=3,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=48,align1=0,align2=3: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=48,align1=3,align2=3: 13.28 (5.56%) 14.06 (0.00%) 14.06 length=80,align1=0,align2=0: 15.62 (-11.11%) 14.84 (-5.56%) 14.06 length=80,align1=5,align2=0: 15.62 (-11.11%) 16.41 (-16.67%) 14.06 length=80,align1=0,align2=5: 14.06 (0.00%) 15.62 (-11.11%) 14.06 length=80,align1=5,align2=5: 15.62 (-5.26%) 17.19 (-15.79%) 14.84 length=96,align1=0,align2=0: 14.06 (0.00%) 14.84 (-5.56%) 14.06 length=96,align1=6,align2=0: 14.84 (-5.56%) 16.41 (-16.67%) 14.06 length=96,align1=0,align2=6: 14.06 (0.00%) 14.84 (-5.56%) 14.06 length=96,align1=6,align2=6: 14.84 (-5.56%) 17.19 (-22.22%) 14.06 length=112,align1=0,align2=0: 17.19 (-4.76%) 14.06 (14.29%) 16.41 length=112,align1=7,align2=0: 17.19 (0.00%) 16.41 (4.55%) 17.19 length=112,align1=0,align2=7: 16.41 (0.00%) 14.84 (9.52%) 16.41 length=112,align1=7,align2=7: 17.19 (0.00%) 17.19 (0.00%) 17.19 length=144,align1=0,align2=0: 17.19 (-10.00%) 17.97 (-15.00%) 15.62 length=144,align1=9,align2=0: 17.19 (-4.76%) 18.75 (-14.29%) 16.41 length=144,align1=0,align2=9: 20.31 (-8.33%) 18.75 (0.00%) 18.75 length=144,align1=9,align2=9: 18.75 (-4.35%) 18.75 (-4.35%) 17.97 length=160,align1=0,align2=0: 18.75 (-4.35%) 17.97 (0.00%) 17.97 length=160,align1=10,align2=0: 18.75 (4.00%) 18.75 (4.00%) 19.53 length=160,align1=0,align2=10: 19.53 (-4.17%) 17.97 (4.17%) 18.75 length=160,align1=10,align2=10: 18.75 (-4.35%) 18.75 (-4.35%) 17.97 length=176,align1=0,align2=0: 18.75 (-4.35%) 17.19 (4.35%) 17.97 length=176,align1=11,align2=0: 19.53 (0.00%) 19.53 (0.00%) 19.53 length=176,align1=0,align2=11: 19.53 (-4.17%) 18.75 (0.00%) 18.75 length=176,align1=11,align2=11: 18.75 (0.00%) 17.97 (4.17%) 18.75 length=192,align1=0,align2=0: 18.75 (0.00%) 17.97 (4.17%) 18.75 length=192,align1=12,align2=0: 21.09 (-8.00%) 18.75 (4.00%) 19.53 length=192,align1=0,align2=12: 18.75 (0.00%) 18.75 (0.00%) 18.75 length=192,align1=12,align2=12: 18.75 (0.00%) 17.97 (4.17%) 18.75 length=208,align1=0,align2=0: 17.97 (0.00%) 20.31 (-13.04%) 17.97 length=208,align1=13,align2=0: 19.53 (7.41%) 21.09 (0.00%) 21.09 length=208,align1=0,align2=13: 23.44 (-11.11%) 21.09 (0.00%) 21.09 length=208,align1=13,align2=13: 21.09 (-3.85%) 21.09 (-3.85%) 20.31 length=224,align1=0,align2=0: 21.09 (-8.00%) 20.31 (-4.00%) 19.53 length=224,align1=14,align2=0: 23.44 (-11.11%) 20.31 (3.70%) 21.09 length=224,align1=0,align2=14: 21.09 (3.57%) 20.31 (7.14%) 21.88 length=224,align1=14,align2=14: 20.31 (0.00%) 19.53 (3.85%) 20.31 length=240,align1=0,align2=0: 20.31 (-4.00%) 19.53 (0.00%) 19.53 length=240,align1=15,align2=0: 22.66 (0.00%) 20.31 (10.34%) 22.66 length=240,align1=0,align2=15: 20.31 (-4.00%) 20.31 (-4.00%) 19.53 length=240,align1=15,align2=15: 21.88 (0.00%) 21.09 (3.57%) 21.88 length=272,align1=0,align2=0: 20.31 (0.00%) 28.12 (-38.46%) 20.31 length=272,align1=17,align2=0: 22.66 (0.00%) 27.34 (-20.69%) 22.66 length=272,align1=0,align2=17: 25.78 (-10.00%) 28.12 (-20.00%) 23.44 length=272,align1=17,align2=17: 22.66 (-3.57%) 27.34 (-25.00%) 21.88 length=288,align1=0,align2=0: 23.44 (-7.14%) 27.34 (-25.00%) 21.88 length=288,align1=18,align2=0: 22.66 (0.00%) 27.34 (-20.69%) 22.66 length=288,align1=0,align2=18: 23.44 (-3.45%) 25.00 (-10.35%) 22.66 length=288,align1=18,align2=18: 22.66 (-3.57%) 21.88 (0.00%) 21.88 length=304,align1=0,align2=0: 21.88 (0.00%) 21.88 (0.00%) 21.88 length=304,align1=19,align2=0: 23.44 (-3.45%) 22.66 (0.00%) 22.66 length=304,align1=0,align2=19: 22.66 (0.00%) 22.66 (0.00%) 22.66 length=304,align1=19,align2=19: 22.66 (-3.57%) 21.88 (0.00%) 21.88 length=320,align1=0,align2=0: 22.66 (-3.57%) 21.88 (0.00%) 21.88 length=320,align1=20,align2=0: 22.66 (0.00%) 22.66 (0.00%) 22.66 length=320,align1=0,align2=20: 22.66 (0.00%) 22.66 (0.00%) 22.66 length=320,align1=20,align2=20: 22.66 (-3.57%) 21.88 (0.00%) 21.88 length=336,align1=0,align2=0: 21.88 (0.00%) 24.22 (-10.71%) 21.88 length=336,align1=21,align2=0: 22.66 (0.00%) 25.00 (-10.35%) 22.66 length=336,align1=0,align2=21: 25.78 (0.00%) 25.00 (3.03%) 25.78 length=336,align1=21,align2=21: 25.00 (0.00%) 23.44 (6.25%) 25.00 length=352,align1=0,align2=0: 24.22 (0.00%) 24.22 (0.00%) 24.22 length=352,align1=22,align2=0: 25.00 (0.00%) 25.00 (0.00%) 25.00 length=352,align1=0,align2=22: 25.00 (-3.23%) 25.00 (-3.23%) 24.22 length=352,align1=22,align2=22: 25.00 (-3.23%) 24.22 (0.00%) 24.22 length=368,align1=0,align2=0: 25.00 (-3.23%) 23.44 (3.23%) 24.22 length=368,align1=23,align2=0: 25.00 (0.00%) 24.22 (3.12%) 25.00 length=368,align1=0,align2=23: 25.00 (-3.23%) 25.00 (-3.23%) 24.22 length=368,align1=23,align2=23: 25.00 (-6.67%) 23.44 (0.00%) 23.44 length=384,align1=0,align2=0: 24.22 (0.00%) 24.22 (0.00%) 24.22 length=384,align1=24,align2=0: 25.00 (0.00%) 24.22 (3.12%) 25.00 length=384,align1=0,align2=24: 25.00 (0.00%) 25.78 (-3.12%) 25.00 length=384,align1=24,align2=24: 24.22 (-3.33%) 23.44 (0.00%) 23.44 length=400,align1=0,align2=0: 25.00 (-3.23%) 26.56 (-9.68%) 24.22 length=400,align1=25,align2=0: 25.78 (-3.12%) 27.34 (-9.38%) 25.00 length=400,align1=0,align2=25: 27.34 (0.00%) 27.34 (0.00%) 27.34 length=400,align1=25,align2=25: 26.56 (0.00%) 25.78 (2.94%) 26.56 length=416,align1=0,align2=0: 26.56 (-3.03%) 25.78 (0.00%) 25.78 length=416,align1=26,align2=0: 28.12 (-2.86%) 27.34 (0.00%) 27.34 length=416,align1=0,align2=26: 27.34 (-2.94%) 28.12 (-5.88%) 26.56 length=416,align1=26,align2=26: 25.78 (0.00%) 26.56 (-3.03%) 25.78 length=432,align1=0,align2=0: 27.34 (-2.94%) 25.78 (2.94%) 26.56 length=432,align1=27,align2=0: 28.12 (-2.86%) 27.34 (0.00%) 27.34 length=432,align1=0,align2=27: 27.34 (0.00%) 28.12 (-2.86%) 27.34 length=432,align1=27,align2=27: 25.78 (0.00%) 25.78 (0.00%) 25.78 length=448,align1=0,align2=0: 26.56 (-3.03%) 25.78 (0.00%) 25.78 length=448,align1=28,align2=0: 27.34 (0.00%) 27.34 (0.00%) 27.34 length=448,align1=0,align2=28: 27.34 (0.00%) 28.12 (-2.86%) 27.34 length=448,align1=28,align2=28: 25.78 (0.00%) 25.78 (0.00%) 25.78 length=464,align1=0,align2=0: 25.78 (0.00%) 28.12 (-9.09%) 25.78 length=464,align1=29,align2=0: 28.12 (-2.86%) 29.69 (-8.57%) 27.34 length=464,align1=0,align2=29: 30.47 (0.00%) 30.47 (0.00%) 30.47 length=464,align1=29,align2=29: 28.12 (0.00%) 27.34 (2.78%) 28.12 length=480,align1=0,align2=0: 29.69 (-5.56%) 28.12 (0.00%) 28.12 length=480,align1=30,align2=0: 31.25 (-2.56%) 29.69 (2.56%) 30.47 length=480,align1=0,align2=30: 29.69 (0.00%) 30.47 (-2.63%) 29.69 length=480,align1=30,align2=30: 28.12 (0.00%) 28.12 (0.00%) 28.12 length=496,align1=0,align2=0: 28.12 (0.00%) 27.34 (2.78%) 28.12 length=496,align1=31,align2=0: 30.47 (-2.63%) 29.69 (0.00%) 29.69 length=496,align1=0,align2=31: 29.69 (0.00%) 30.47 (-2.63%) 29.69 length=496,align1=31,align2=31: 28.12 (-2.86%) 28.12 (-2.86%) 27.34 length=1024,align1=0,align2=0: 44.53 (0.00%) 44.53 (0.00%) 44.53 length=1024,align1=32,align2=0: 44.53 (-1.79%) 44.53 (-1.79%) 43.75 length=1024,align1=0,align2=32: 44.53 (-1.79%) 43.75 (0.00%) 43.75 length=1024,align1=32,align2=32: 43.75 (1.75%) 43.75 (1.75%) 44.53 length=1056,align1=0,align2=0: 46.88 (-1.69%) 46.88 (-1.69%) 46.09 length=1056,align1=33,align2=0: 53.12 (0.00%) 52.34 (1.47%) 53.12 length=1056,align1=0,align2=33: 52.34 (0.00%) 53.12 (-1.49%) 52.34 length=1056,align1=33,align2=33: 46.09 (0.00%) 46.88 (-1.69%) 46.09 length=1088,align1=0,align2=0: 46.88 (-1.69%) 46.09 (0.00%) 46.09 length=1088,align1=34,align2=0: 52.34 (0.00%) 52.34 (0.00%) 52.34 length=1088,align1=0,align2=34: 53.12 (-3.03%) 53.12 (-3.03%) 51.56 length=1088,align1=34,align2=34: 46.09 (0.00%) 46.88 (-1.69%) 46.09 length=1120,align1=0,align2=0: 49.22 (-1.61%) 48.44 (0.00%) 48.44 length=1120,align1=35,align2=0: 54.69 (1.41%) 55.47 (0.00%) 55.47 length=1120,align1=0,align2=35: 57.03 (0.00%) 55.47 (2.74%) 57.03 length=1120,align1=35,align2=35: 48.44 (0.00%) 49.22 (-1.61%) 48.44 length=1152,align1=0,align2=0: 47.66 (1.61%) 48.44 (0.00%) 48.44 length=1152,align1=36,align2=0: 55.47 (-1.43%) 55.47 (-1.43%) 54.69 length=1152,align1=0,align2=36: 58.59 (-1.35%) 55.47 (4.05%) 57.81 length=1152,align1=36,align2=36: 48.44 (0.00%) 49.22 (-1.61%) 48.44 length=1184,align1=0,align2=0: 53.12 (-3.03%) 50.78 (1.52%) 51.56 length=1184,align1=37,align2=0: 61.72 (-2.60%) 57.03 (5.19%) 60.16 length=1184,align1=0,align2=37: 62.50 (-1.27%) 57.03 (7.60%) 61.72 length=1184,align1=37,align2=37: 53.12 (-1.49%) 50.78 (2.99%) 52.34 length=1216,align1=0,align2=0: 53.91 (-4.55%) 50.78 (1.52%) 51.56 length=1216,align1=38,align2=0: 60.94 (0.00%) 57.03 (6.41%) 60.94 length=1216,align1=0,align2=38: 60.16 (0.00%) 57.81 (3.90%) 60.16 length=1216,align1=38,align2=38: 52.34 (-1.52%) 50.00 (3.03%) 51.56 length=1248,align1=0,align2=0: 54.69 (-2.94%) 53.12 (0.00%) 53.12 length=1248,align1=39,align2=0: 64.06 (-1.23%) 60.16 (4.94%) 63.28 length=1248,align1=0,align2=39: 60.94 (-2.63%) 60.16 (-1.32%) 59.38 length=1248,align1=39,align2=39: 53.12 (0.00%) 52.34 (1.47%) 53.12 length=1280,align1=0,align2=0: 52.34 (-1.52%) 52.34 (-1.52%) 51.56 length=1280,align1=40,align2=0: 61.72 (3.66%) 59.38 (7.32%) 64.06 length=1280,align1=0,align2=40: 60.94 (-2.63%) 60.16 (-1.32%) 59.38 length=1280,align1=40,align2=40: 52.34 (-1.52%) 52.34 (-1.52%) 51.56 length=1312,align1=0,align2=0: 54.69 (-1.45%) 55.47 (-2.90%) 53.91 length=1312,align1=41,align2=0: 63.28 (0.00%) 62.50 (1.23%) 63.28 length=1312,align1=0,align2=41: 62.50 (0.00%) 62.50 (0.00%) 62.50 length=1312,align1=41,align2=41: 53.91 (0.00%) 54.69 (-1.45%) 53.91 length=1344,align1=0,align2=0: 54.69 (0.00%) 54.69 (0.00%) 54.69 length=1344,align1=42,align2=0: 62.50 (0.00%) 62.50 (0.00%) 62.50 length=1344,align1=0,align2=42: 62.50 (-1.27%) 62.50 (-1.27%) 61.72 length=1344,align1=42,align2=42: 53.91 (0.00%) 53.91 (0.00%) 53.91 length=1376,align1=0,align2=0: 65.62 (-16.67%) 68.75 (-22.22%) 56.25 length=1376,align1=43,align2=0: 71.88 (-9.52%) 73.44 (-11.90%) 65.62 length=1376,align1=0,align2=43: 72.66 (-12.05%) 74.22 (-14.46%) 64.84 length=1376,align1=43,align2=43: 64.06 (-13.89%) 67.97 (-20.83%) 56.25 length=1408,align1=0,align2=0: 57.03 (-1.39%) 68.75 (-22.22%) 56.25 length=1408,align1=44,align2=0: 65.62 (-1.20%) 73.44 (-13.25%) 64.84 length=1408,align1=0,align2=44: 64.84 (0.00%) 74.22 (-14.46%) 64.84 length=1408,align1=44,align2=44: 56.25 (-1.41%) 68.75 (-23.94%) 55.47 length=1440,align1=0,align2=0: 67.97 (-14.47%) 64.84 (-9.21%) 59.38 length=1440,align1=45,align2=0: 74.22 (-10.47%) 68.75 (-2.33%) 67.19 length=1440,align1=0,align2=45: 72.66 (-6.90%) 69.53 (-2.30%) 67.97 length=1440,align1=45,align2=45: 65.62 (-13.51%) 58.59 (-1.35%) 57.81 length=1472,align1=0,align2=0: 66.41 (-14.86%) 58.59 (-1.35%) 57.81 length=1472,align1=46,align2=0: 73.44 (-9.30%) 67.19 (0.00%) 67.19 length=1472,align1=0,align2=46: 70.31 (-4.65%) 67.97 (-1.16%) 67.19 length=1472,align1=46,align2=46: 57.81 (0.00%) 58.59 (-1.35%) 57.81 length=1504,align1=0,align2=0: 60.94 (0.00%) 60.94 (0.00%) 60.94 length=1504,align1=47,align2=0: 71.09 (-1.11%) 70.31 (0.00%) 70.31 length=1504,align1=0,align2=47: 70.31 (-1.12%) 70.31 (-1.12%) 69.53 length=1504,align1=47,align2=47: 60.94 (-1.30%) 60.16 (0.00%) 60.16 length=1536,align1=0,align2=0: 62.50 (-3.90%) 60.16 (0.00%) 60.16 length=1536,align1=48,align2=0: 60.94 (-1.30%) 60.16 (0.00%) 60.16 length=1536,align1=0,align2=48: 61.72 (-3.95%) 60.16 (-1.32%) 59.38 length=1536,align1=48,align2=48: 60.94 (-1.30%) 60.16 (0.00%) 60.16 length=1568,align1=0,align2=0: 80.47 (-27.16%) 63.28 (0.00%) 63.28 length=1568,align1=49,align2=0: 86.72 (-18.09%) 72.66 (1.06%) 73.44 length=1568,align1=0,align2=49: 74.22 (-3.26%) 74.22 (-3.26%) 71.88 length=1568,align1=49,align2=49: 62.50 (0.00%) 61.72 (1.25%) 62.50 length=1600,align1=0,align2=0: 62.50 (-1.27%) 62.50 (-1.27%) 61.72 length=1600,align1=50,align2=0: 73.44 (0.00%) 71.88 (2.13%) 73.44 length=1600,align1=0,align2=50: 72.66 (0.00%) 73.44 (-1.08%) 72.66 length=1600,align1=50,align2=50: 62.50 (-1.27%) 62.50 (-1.27%) 61.72 length=1632,align1=0,align2=0: 64.84 (0.00%) 64.84 (0.00%) 64.84 length=1632,align1=51,align2=0: 75.78 (0.00%) 75.00 (1.03%) 75.78 length=1632,align1=0,align2=51: 78.91 (0.00%) 75.78 (3.96%) 78.91 length=1632,align1=51,align2=51: 64.84 (-2.47%) 64.84 (-2.47%) 63.28 length=1664,align1=0,align2=0: 64.84 (-1.22%) 64.84 (-1.22%) 64.06 length=1664,align1=52,align2=0: 75.78 (0.00%) 75.00 (1.03%) 75.78 length=1664,align1=0,align2=52: 80.47 (-0.98%) 75.78 (4.90%) 79.69 length=1664,align1=52,align2=52: 64.06 (-1.23%) 65.62 (-3.70%) 63.28 length=1696,align1=0,align2=0: 69.53 (-3.49%) 72.66 (-8.14%) 67.19 length=1696,align1=53,align2=0: 80.47 (-0.98%) 82.03 (-2.94%) 79.69 length=1696,align1=0,align2=53: 80.47 (0.96%) 82.03 (-0.96%) 81.25 length=1696,align1=53,align2=53: 68.75 (-2.33%) 72.66 (-8.14%) 67.19 length=1728,align1=0,align2=0: 67.97 (0.00%) 72.66 (-6.90%) 67.97 length=1728,align1=54,align2=0: 80.47 (-0.98%) 82.81 (-3.92%) 79.69 length=1728,align1=0,align2=54: 78.91 (-1.00%) 82.03 (-5.00%) 78.12 length=1728,align1=54,align2=54: 68.75 (0.00%) 72.66 (-5.68%) 68.75 length=1760,align1=0,align2=0: 77.34 (-12.50%) 68.75 (0.00%) 68.75 length=1760,align1=55,align2=0: 91.41 (-8.33%) 79.69 (5.56%) 84.38 length=1760,align1=0,align2=55: 88.28 (-10.78%) 80.47 (-0.98%) 79.69 length=1760,align1=55,align2=55: 77.34 (-11.24%) 68.75 (1.12%) 69.53 length=1792,align1=0,align2=0: 78.12 (-14.94%) 68.75 (-1.15%) 67.97 length=1792,align1=56,align2=0: 88.28 (-4.63%) 79.69 (5.56%) 84.38 length=1792,align1=0,align2=56: 88.28 (-9.71%) 80.47 (0.00%) 80.47 length=1792,align1=56,align2=56: 77.34 (-11.24%) 68.75 (1.12%) 69.53 length=1824,align1=0,align2=0: 72.66 (7.92%) 70.31 (10.89%) 78.91 length=1824,align1=57,align2=0: 85.94 (5.17%) 82.03 (9.48%) 90.62 length=1824,align1=0,align2=57: 82.03 (3.67%) 82.81 (2.75%) 85.16 length=1824,align1=57,align2=57: 70.31 (-1.12%) 70.31 (-1.12%) 69.53 length=1856,align1=0,align2=0: 70.31 (-1.12%) 70.31 (-1.12%) 69.53 length=1856,align1=58,align2=0: 83.59 (-0.94%) 82.03 (0.94%) 82.81 length=1856,align1=0,align2=58: 178.12 (-115.09%) 82.81 (0.00%) 82.81 length=1856,align1=58,align2=58: 70.31 (-1.12%) 70.31 (-1.12%) 69.53 length=1888,align1=0,align2=0: 73.44 (-1.08%) 78.91 (-8.60%) 72.66 length=1888,align1=59,align2=0: 85.94 (0.00%) 89.84 (-4.55%) 85.94 length=1888,align1=0,align2=59: 84.38 (0.00%) 89.06 (-5.56%) 84.38 length=1888,align1=59,align2=59: 72.66 (-1.09%) 78.12 (-8.70%) 71.88 length=1920,align1=0,align2=0: 72.66 (-1.09%) 78.12 (-8.70%) 71.88 length=1920,align1=60,align2=0: 85.94 (0.00%) 89.84 (-4.55%) 85.94 length=1920,align1=0,align2=60: 85.16 (0.00%) 89.06 (-4.59%) 85.16 length=1920,align1=60,align2=60: 72.66 (-1.09%) 78.91 (-9.78%) 71.88 length=1952,align1=0,align2=0: 75.00 (-1.05%) 75.00 (-1.05%) 74.22 length=1952,align1=61,align2=0: 88.28 (0.00%) 87.50 (0.88%) 88.28 length=1952,align1=0,align2=61: 87.50 (0.00%) 88.28 (-0.89%) 87.50 length=1952,align1=61,align2=61: 74.22 (0.00%) 74.22 (0.00%) 74.22 length=1984,align1=0,align2=0: 75.00 (-1.05%) 73.44 (1.05%) 74.22 length=1984,align1=62,align2=0: 89.06 (-0.89%) 87.50 (0.88%) 88.28 length=1984,align1=0,align2=62: 87.50 (0.00%) 88.28 (-0.89%) 87.50 length=1984,align1=62,align2=62: 74.22 (0.00%) 74.22 (0.00%) 74.22 length=2016,align1=0,align2=0: 77.34 (-1.02%) 76.56 (0.00%) 76.56 length=2016,align1=63,align2=0: 91.41 (-0.86%) 90.62 (0.00%) 90.62 length=2016,align1=0,align2=63: 89.84 (0.00%) 90.62 (-0.87%) 89.84 length=2016,align1=63,align2=63: 77.34 (-1.02%) 76.56 (0.00%) 76.56 length=4096,align1=0,align2=0: 141.41 (-0.56%) 146.88 (-4.44%) 140.62 Function: memcpy __memcpy_thunderx __memcpy_falkor __memcpy_generic Variant: large ================================================================================ length=65543,align1=0,align2=0: 4018.75 (3.09%) 2634.38 (36.47%) 4146.88 length=65551,align1=0,align2=3: 4425.00 (-6.47%) 3134.38 (24.59%) 4156.25 length=65567,align1=3,align2=0: 2909.38 (29.95%) 3134.38 (24.53%) 4153.12 length=65599,align1=3,align2=5: 4415.62 (-6.16%) 3134.38 (24.64%) 4159.38 length=131079,align1=0,align2=0: 5765.62 (30.38%) 5240.62 (36.72%) 8281.25 length=131087,align1=0,align2=3: 8831.25 (-6.56%) 6271.88 (24.32%) 8287.50 length=131103,align1=3,align2=0: 5793.75 (29.05%) 6268.75 (23.23%) 8165.62 length=131135,align1=3,align2=5: 5806.25 (29.97%) 6259.38 (24.50%) 8290.62 length=262151,align1=0,align2=0: 11850.00 (28.91%) 10762.50 (35.43%) 16668.80 length=262159,align1=0,align2=3: 12043.80 (27.72%) 12700.00 (23.78%) 16662.50 length=262175,align1=3,align2=0: 12046.90 (27.90%) 12687.50 (24.07%) 16709.40 length=262207,align1=3,align2=5: 11984.40 (28.08%) 12678.10 (23.91%) 16662.50 length=524295,align1=0,align2=0: 24825.00 (25.00%) 24268.80 (27.34%) 33400.00 length=524303,align1=0,align2=3: 35731.20 (-6.53%) 25678.10 (23.44%) 33540.60 length=524319,align1=3,align2=0: 25893.80 (22.71%) 25725.00 (23.22%) 33503.10 length=524351,align1=3,align2=5: 25887.50 (22.86%) 25690.60 (23.45%) 33559.40 length=1048583,align1=0,align2=0: 50621.90 (0.30%) 50600.00 (0.34%) 50771.90 length=1048591,align1=0,align2=3: 53206.20 (0.54%) 51081.20 (4.51%) 53493.80 length=1048607,align1=3,align2=0: 53221.90 (0.32%) 51975.00 (2.66%) 53393.80 length=1048639,align1=3,align2=5: 53240.60 (0.36%) 51953.10 (2.77%) 53431.20 length=2097159,align1=0,align2=0: 103744.00 (-2.00%) 102447.00 (-1.00%) 102425.00 length=2097167,align1=0,align2=3: 108588.00 (-1.00%) 105159.00 (2.00%) 107606.00 length=2097183,align1=3,align2=0: 107678.00 (0.00%) 105250.00 (2.00%) 108125.00 length=2097215,align1=3,align2=5: 107906.00 (1.00%) 105841.00 (3.00%) 109475.00 length=4194311,align1=0,align2=0: 202994.00 (0.00%) 202500.00 (1.00%) 204809.00 length=4194319,align1=0,align2=3: 213350.00 (0.00%) 205997.00 (3.00%) 213384.00 length=4194335,align1=3,align2=0: 212653.00 (0.00%) 206444.00 (3.00%) 212900.00 length=4194367,align1=3,align2=5: 213044.00 (0.00%) 206084.00 (3.00%) 213847.00 length=8388615,align1=0,align2=0: 401294.00 (0.00%) 401231.00 (0.00%) 401944.00 length=8388623,align1=0,align2=3: 480872.00 (-14.00%) 406444.00 (3.00%) 422900.00 length=8388639,align1=3,align2=0: 422147.00 (0.00%) 407750.00 (3.00%) 422803.00 length=8388671,align1=3,align2=5: 442003.00 (-5.00%) 407125.00 (3.00%) 423509.00 length=16777223,align1=0,align2=0: 799809.00 (0.00%) 800000.00 (0.00%) 801756.00 length=16777231,align1=0,align2=3: 841184.00 (0.00%) 808525.00 (4.00%) 843775.00 length=16777247,align1=3,align2=0: 841166.00 (0.00%) 810147.00 (3.00%) 843147.00 length=16777279,align1=3,align2=5: 972569.00 (-16.00%) 808588.00 (4.00%) 843731.00 length=33554439,align1=0,align2=0: 1842240.00 (-0.01%) 1863590.00 (-1.17%) 1841990.00 length=33554447,align1=0,align2=3: 2103470.00 (-2.74%) 1919460.00 (6.25%) 2047440.00 length=33554463,align1=3,align2=0: 2075690.00 (-1.07%) 1930040.00 (6.02%) 2053720.00 length=33554495,align1=3,align2=5: 2110590.00 (-2.82%) 1924440.00 (6.25%) 2052650.00 Function: memcpy __memcpy_thunderx __memcpy_falkor __memcpy_generic Variant: random ================================================================================ max-size=4096: 44061.90 (5.85%) 38568.20 (17.59%) 46799.90 max-size=8192: 42790.90 (5.27%) 38158.90 (15.52%) 45171.50 max-size=16384: 44912.10 (2.25%) 38710.40 (15.75%) 45945.00 max-size=32768: 43577.90 (1.23%) 37975.10 (13.93%) 44120.00 max-size=65536: 44375.50 (1.04%) 38474.20 (14.20%) 44840.60 * manual/tunables.texi (Tunable glibc.tune.cpu): Add falkor. * sysdeps/aarch64/multiarch/Makefile (sysdep_routines): Add memcpy_falkor. * sysdeps/aarch64/multiarch/ifunc-impl-list.c (MAX_IFUNC): Bump. (__libc_ifunc_impl_list): Add __memcpy_falkor. * sysdeps/aarch64/multiarch/memcpy.c: Likewise. * sysdeps/aarch64/multiarch/memcpy_falkor.S: New file. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list): Add falkor. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_FALKOR): New macro. |
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Siddhesh Poyarekar
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ab85da1530 |
aarch64: Call all string function implementations in tests
The string function implementations implemented so far do not use any instructions that may deviate from standard aarch64, so it is possible for all routines to run on all armv8 hardware. Select all implementations in the benchmarks and tests. * sysdeps/aarch64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Unconditionally select thunderx routine for testing. |
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Steve Ellcey
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6a2c695266 |
aarch64: Thunderx specific memcpy and memmove
* sysdeps/aarch64/memcpy.S (MEMMOVE, MEMCPY): New macros. (memmove): Use MEMMOVE for name. (memcpy): Use MEMCPY for name. Change internal labels to external labels. * sysdeps/aarch64/multiarch/Makefile: New file. * sysdeps/aarch64/multiarch/ifunc-impl-list.c: Likewise. * sysdeps/aarch64/multiarch/init-arch.h: Likewise. * sysdeps/aarch64/multiarch/memcpy.c: Likewise. * sysdeps/aarch64/multiarch/memcpy_generic.S: Likewise. * sysdeps/aarch64/multiarch/memcpy_thunderx.S: Likewise. * sysdeps/aarch64/multiarch/memmove.c: Likewise. |