No bug.
Split vec generation into multiple steps. This allows the
broadcast in AVX2 to use 'xmm' registers for the L(less_vec)
case. This saves an expensive lane-cross instruction and removes
the need for 'vzeroupper'.
For SSE2 replace 2x 'punpck' instructions with zero-idiom 'pxor' for
byte broadcast.
Results for memset-avx2 small (geomean of N = 20 benchset runs).
size, New Time, Old Time, New / Old
0, 4.100, 3.831, 0.934
1, 5.074, 4.399, 0.867
2, 4.433, 4.411, 0.995
4, 4.487, 4.415, 0.984
8, 4.454, 4.396, 0.987
16, 4.502, 4.443, 0.987
All relevant string/wcsmbs tests are passing.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector tan/tanf and input files to libmvec microbenchmark.
libmvec-tan-inputs:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 5.0
10% uniform random distribution in range (-1000.0, 1000.0)
libmvec-tanf-inputs:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 5.0f
10% uniform random distribution in range (-1000.0f, 1000.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector erfc/erfcf and input files to libmvec microbenchmark.
libmvec-erfc-inputs:
90% Normal random distribution
range: (-6.0, 6.0)
mean: 0.0
sigma: 1.0
10% uniform random distribution in range (-5.9, 5.9)
libmvec-erfcf-inputs:
90% Normal random distribution
range: (-4.0f, 4.0f)
mean: 0.0f
sigma: 1.0f
10% uniform random distribution in range (-3.9f, 3.9f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector asinh/asinhf and input files to libmvec microbenchmark.
libmvec-asinh-inputs:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 2.0
10% uniform random distribution in range (-1.0e6, 1.0e6)
libmvec-asinhf-inputs:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 2.0f
10% uniform random distribution in range (-1.0e6f, 1.0e6f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector tanh/tanhf and input files to libmvec microbenchmark.
libmvec-tanh-inputs:
90% Normal random distribution
range: (-19.0, 19.0)
mean: 0.0
sigma: 2.0
10% uniform random distribution in range (-16.0, 16.0)
libmvec-tanhf-inputs:
90% Normal random distribution
range: (-10.0f, 10.0f)
mean: 0.0f
sigma: 2.0f
10% uniform random distribution in range (-8.0f, 8.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector erf/erff and input files to libmvec microbenchmark.
libmvec-erf-inputs:
90% Normal random distribution
range: (-6.0, 6.0)
mean: 0.0
sigma: 1.0
10% uniform random distribution in range (-5.9, 5.9)
libmvec-erff-inputs:
90% Normal random distribution
range: (-4.0f, 4.0f)
mean: 0.0f
sigma: 1.0f
10% uniform random distribution in range (-3.9f, 3.9f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector acosh/acoshf and input files to libmvec microbenchmark.
libmvec-acosh-inputs:
90% Normal random distribution
range: (1.0, DBL_MAX)
mean: 1.0
sigma: 8.0
10% uniform random distribution in range (1.0, 1.0e6)
libmvec-acoshf-inputs:
90% Normal random distribution
range: (1.0f, FLT_MAX)
mean: 1.0f
sigma: 4.0f
10% uniform random distribution in range (1.0f, 1.0e6f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector atanh/atanhf and input files to libmvec microbenchmark.
libmvec-atanh-inputs:
90% Normal random distribution
range: (-1.0, 1.0)
mean: 0.0
sigma: 1.0
10% uniform random distribution in range (-1.0, 1.0)
libmvec-atanhf-inputs:
90% Normal random distribution
range: (-1.0f, 1.0f)
mean: 0.0f
sigma: 1.0f
10% uniform random distribution in range (-1.0f, 1.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector log1p/log1pf and input files to libmvec microbenchmark.
libmvec-log1p-inputs:
70% Normal random distribution
range: (-1.0, DBL_MAX)
mean: 0.0
sigma: 50.0
30% uniform random distribution in range (-1.0, 1.0e6)
libmvec-log1pf-inputs:
70% Normal random distribution
range: (-1.0f, FLT_MAX)
mean: 0.0f
sigma: 50.0f
30% uniform random distribution in range (-1.0f, 1.0e6f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector log2/log2f and input files to libmvec microbenchmark.
libmvec-log2-inputs:
70% Normal random distribution
range: (0.0, DBL_MAX)
mean: 1.0
sigma: 50.0
30% uniform random distribution in range (0.0, 1.0e6)
libmvec-log2f-inputs:
70% Normal random distribution
range: (0.0f, FLT_MAX)
mean: 1.0f
sigma: 50.0f
30% uniform random distribution in range (0.0f, 1.0e6f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector log10/log10f and input files to libmvec microbenchmark.
libmvec-log10-inputs:
70% Normal random distribution
range: (0.0, DBL_MAX)
mean: 1.0
sigma: 50.0
30% uniform random distribution in range (0.0, 1.0e6)
libmvec-log10f-inputs:
70% Normal random distribution
range: (0.0f, FLT_MAX)
mean: 1.0f
sigma: 50.0f
30% uniform random distribution in range (0.0f, 1.0e6f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector atan2/atan2f and input files to libmvec microbenchmark.
libmvec-atan2-inputs:
arg1:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 4.0
10% uniform random distribution in range (-1.0e6, 1.0e6)
arg2:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 4.0
10% uniform random distribution in range (-1.0e6, 1.0e6)
libmvec-atan2f-inputs:
arg1:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 4.0f
10% uniform random distribution in range (-1.0e6f, 1.0e6f)
arg2:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 4.0f
10% uniform random distribution in range (-1.0e6f, 1.0e6f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector cbrt/cbrtf and input files to libmvec microbenchmark.
libmvec-cbrt-inputs:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 10.0
10% uniform random distribution in range (-1000.0, 1000.0)
libmvec-cbrtf-inputs:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 10.0f
10% uniform random distribution in range (-1000.0f, 1000.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector sinh/sinhf and input files to libmvec microbenchmark.
libmvec-sinh-inputs:
90% Normal random distribution
range: (-710.0, 710.0)
mean: 0.0
sigma: 32.0
10% uniform random distribution in range (-500.0, 500.0)
libmvec-sinhf-inputs:
90% Normal random distribution
range: (-89.0f, 89.0f)
mean: 0.0f
sigma: 16.0f
10% uniform random distribution in range (-50.0f, 50.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector expm1/expm1f and input files to libmvec microbenchmark.
libmvec-expm1-inputs:
90% Normal random distribution
range: (-708.0, 709.0)
mean: 0.0
sigma: 16.0
10% uniform random distribution in range (-500.0, 500.0)
libmvec-expm1f-inputs:
90% Normal random distribution
range: (-87.0f, 88.0f)
mean: 0.0f
sigma: 8.0f
10% uniform random distribution in range (-50.0f, 50.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector cosh/coshf and input files to libmvec microbenchmark.
libmvec-cosh-inputs:
90% Normal random distribution
range: (-710.0, 710.0)
mean: 0.0
sigma: 32.0
10% uniform random distribution in range (-500.0, 500.0)
libmvec-coshf-inputs:
90% Normal random distribution
range: (-89.0f, 89.0f)
mean: 0.0f
sigma: 16.0f
10% uniform random distribution in range (-50.0f, 50.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector exp10/exp10f and input files to libmvec microbenchmark.
libmvec-exp10-inputs:
90% Normal random distribution
range: (-307.0, 308.0)
mean: 0.0
sigma: 16.0
10% uniform random distribution in range (-250.0, 250.0)
libmvec-exp10f-inputs:
90% Normal random distribution
range: (-37.0f, 38.0f)
mean: 0.0f
sigma: 8.0f
10% uniform random distribution in range (-25.0f, 25.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector exp2/exp2f and input files to libmvec microbenchmark.
libmvec-exp2-inputs:
90% Normal random distribution
range: (-1022.0, 1024.0)
mean: 0.0
sigma: 16.0
10% uniform random distribution in range (-1000.0, 1000.0)
libmvec-exp2f-inputs:
90% Normal random distribution
range: (-126.0f, 128.0f)
mean: 0.0f
sigma: 8.0f
10% uniform random distribution in range (-100.0f, 100.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector hypot/hypotf and input files to libmvec microbenchmark.
libmvec-hypot-inputs:
arg1:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 10.0
10% uniform random distribution in range (-1000.0, 1000.0)
arg1:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 10.0
10% uniform random distribution in range (-1000.0, 1000.0)
libmvec-hypotf-inputs:
arg1:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 10.0f
10% uniform random distribution in range (-1000.0f, 1000.0f)
arg2:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 10.0f
10% uniform random distribution in range (-1000.0f, 1000.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector asin/asinf and input files to libmvec microbenchmark.
libmvec-asin-inputs:
90% Normal random distribution
range: (-1.0, 1.0)
mean: 0.0
sigma: 1.0
10% uniform random distribution in range (-1.0, 1.0)
libmvec-asinf-inputs:
90% Normal random distribution
range: (-1.0f, 1.0f)
mean: 0.0f
sigma: 1.0f
10% uniform random distribution in range (-1.0f, 1.0f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Add vector atan/atanf and input files to libmvec microbenchmark.
libmvec-atan-inputs:
arg1:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 4.0
10% uniform random distribution in range (-1.0e6, 1.0e6)
arg2:
90% Normal random distribution
range: (-DBL_MAX, DBL_MAX)
mean: 0.0
sigma: 4.0
10% uniform random distribution in range (-1.0e6, 1.0e6)
libmvec-atanf-inputs:
arg1:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 4.0f
10% uniform random distribution in range (-1.0e6f, 1.0e6f)
arg2:
90% Normal random distribution
range: (-FLT_MAX, FLT_MAX)
mean: 0.0f
sigma: 4.0f
10% uniform random distribution in range (-1.0e6f, 1.0e6f)
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Replace tst-audit24bmod2.so with tst-audit24bmod2 to silence:
make[2]: Entering directory '/export/gnu/import/git/gitlab/x86-glibc/elf'
Makefile:2201: warning: overriding recipe for target '/export/build/gnu/tools-build/glibc-gitlab/build-x86_64-linux/elf/tst-audit24bmod2.so'
../Makerules:765: warning: ignoring old recipe for target '/export/build/gnu/tools-build/glibc-gitlab/build-x86_64-linux/elf/tst-audit24bmod2.so'
Add vector acos/acosf and input files to libmvec microbenchmark.
libmvec-acos-inputs:
90% Normal random distribution
range: (-1.0, 1.0)
mean: 0.0
sigma: 1.0
10% uniform random distribution in range (-1.0, 1.0)
libmvec-acosf-inputs:
90% Normal random distribution
range: (-1.0f, 1.0f)
mean: 0.0f
sigma: 1.0f
10% uniform random distribution in range (-1.0f, 1.0f)
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
Add more small and medium sized tests for strcmp and strncmp.
As well for strcmp add option for more direct control of
alignment. Previously alignment was being pushed to the end of the
page. While this is the most difficult case to implement, it is far
from the common case and so shouldn't be the only benchmark.
Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
Optimization are primarily to the loop logic and how the page cross
logic interacts with the loop.
The page cross logic is at times more expensive for short strings near
the end of a page but not crossing the page. This is done to retest
the page cross conditions with a non-faulty check and to improve the
logic for entering the loop afterwards. This is only particular cases,
however, and is general made up for by more than 10x improvements on
the transition from the page cross -> loop case.
The non-page cross cases as well are nearly universally improved.
test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass.
Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
Optimization are primarily to the loop logic and how the page cross
logic interacts with the loop.
The page cross logic is at times more expensive for short strings near
the end of a page but not crossing the page. This is done to retest
the page cross conditions with a non-faulty check and to improve the
logic for entering the loop afterwards. This is only particular cases,
however, and is general made up for by more than 10x improvements on
the transition from the page cross -> loop case.
The non-page cross cases are improved most for smaller sizes [0, 128]
and go about even for (128, 4096]. The loop page cross logic is
improved so some more significant speedup is seen there as well.
test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass.
Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
Add additional test cases for small / medium sizes.
Add tests in test-strncmp.c where `n` is near ULONG_MAX or LONG_MIN to
test for overflow bugs in length handling.
Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
These implementations just add to test duration. Since we have
simple_* implementations we already have a safe reference
implementation.
Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
Commit 948ce73b31 made recvmsg/recvmmsg to always call
__convert_scm_timestamps for 64 bit time_t symbol, so adjust it to
always build it for __TIMESIZE != 64.
It fixes build for architecture with 32 bit time_t support when
configured with minimum kernel of 5.1.
Pass the actual number of bytes returned by the kernel.
Fixes: 33099d72e4 ("linux: Simplify get_nprocs")
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
The test changes the current foreground process group, which might
break testing depending of how the make check is issued. For instance:
nohup make -j1 test t=posix/tst-spawn6 | less
Will set 'make' and 'less' to be in the foreground process group in
the current session. When tst-spawn6 new child takes over it becomes
the foreground process and 'less' is stopped and backgrounded which
interrupts the 'make check' command.
To fix it a pseudo-terminal is allocated, the test starts in new
session (so there is no controlling terminal associated), and the
pseudo-terminal is set as the controlling one (similar to what
login_tty does).
Checked on x86_64-linux-gnu.
Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Moved LD_AUDIT notes into requirements section since the LAV_CURRENT
bump is a requirements change that impacts loading old audit modules
or new audit modules on older loaders.
This matches the data size initial-exec relocations use on most
targets.
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
The posix_spawnattr_tcsetpgrp_np works on a file descriptor (the
controlling terminal), so it would make more sense to actually fit
it on the file actions API.
Also, POSIX_SPAWN_TCSETPGROUP is not really required since it is
implicit by the presence of tcsetpgrp file action.
The posix/tst-spawn6.c is also fixed when TTY can is not present.
Checked on x86_64-linux-gnu and i686-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
PI_STATIC_AND_HIDDEN means that references to static functions, data
and symbols with hidden visibility do not need any run-time relocations
after the final link, with the build flags used by glibc.
OpenRISC follows this so enabled PI_STATIC_AND_HIDDEN by adding
configure.ac and generating configure.
Suggested-by: Florian Weimer <fweimer@redhat.com>
