glibc/sysdeps
Xuelei Zhang 525de033a9 aarch64: Optimized memset for Kunpeng processor.
Due to the branch prediction issue of Kunpeng processor, we found
memset_generic has poor performance on middle sizes setting, and so
we reconstructed the logic, expanded the loop by 4 times in set_long
to solve the problem, even when setting below 1K sizes have benefit.

Another change is that DZ_ZVA seems no work when setting zero, so we
discarded it and used set_long to set zero instead. Fewer branches and
predictions also make the zero case have slightly improvement.

Checked on aarch64-linux-gnu.

Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
2019-12-19 16:31:04 -03:00
..
aarch64 aarch64: Optimized memset for Kunpeng processor. 2019-12-19 16:31:04 -03:00
alpha nptl: Add default pthread-offsets.h 2019-11-26 13:53:36 +00:00
arm elf: Do not run IFUNC resolvers for LD_DEBUG=unused [BZ #24214] 2019-12-02 14:55:22 +01:00
csky nptl: Add default pthread-offsets.h 2019-11-26 13:53:36 +00:00
generic Remove __waitpid_nocancel 2019-12-19 16:11:09 -03:00
gnu Add TCP_TX_DELAY from Linux 5.3 to netinet/tcp.h. 2019-09-27 13:37:36 +00:00
hppa nptl: Add struct_rwlock.h 2019-11-26 13:53:36 +00:00
htl time: Introduce function to check correctness of nanoseconds value 2019-10-27 21:49:25 +01:00
hurd Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
i386 elf: Do not run IFUNC resolvers for LD_DEBUG=unused [BZ #24214] 2019-12-02 14:55:22 +01:00
ia64 nptl: Add default pthread-offsets.h 2019-11-26 13:53:36 +00:00
ieee754 ldbl-128ibm-compat: Add ISO C99 versions of scanf functions 2019-12-13 18:02:09 -03:00
init_array Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
m68k nptl: Add default pthread-offsets.h 2019-11-26 13:53:36 +00:00
mach Implement waitpid in terms of wait4 2019-12-19 16:11:09 -03:00
microblaze nptl: Add default pthread-offsets.h 2019-11-26 13:53:36 +00:00
mips nptl: Add struct_rwlock.h 2019-11-26 13:53:36 +00:00
nios2 nptl: Add default pthread-offsets.h 2019-11-26 13:53:36 +00:00
nptl nptl: Fix __PTHREAD_MUTEX_INITIALIZER for !__PTHREAD_MUTEX_HAVE_PREV 2019-11-26 17:00:19 -03:00
posix Consolidate wait3 implementations 2019-12-19 16:11:09 -03:00
powerpc powerpc: Do not run IFUNC resolvers for LD_DEBUG=unused [BZ #24214] 2019-12-19 09:49:57 -03:00
pthread Change most internal uses of __gettimeofday to __clock_gettime. 2019-10-30 17:04:10 -03:00
riscv sysdeps/riscv/start.S: rename .Lload_gp to load_gp (bug 24376) 2019-12-09 12:05:26 +01:00
s390 S390: Use sysdeps/ieee754/dbl-64/wordsize-64 on s390x. 2019-12-11 15:12:26 +01:00
sh nptl: Add default pthread-offsets.h 2019-11-26 13:53:36 +00:00
sparc Always use wordsize-64 version of s_trunc.c. 2019-12-11 15:12:14 +01:00
unix aarch64: Add Huawei Kunpeng to tunable cpu list 2019-12-19 16:31:04 -03:00
wordsize-32 Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
wordsize-64 Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
x86 nptl: Add struct_rwlock.h 2019-11-26 13:53:36 +00:00
x86_64 Always use wordsize-64 version of s_trunc.c. 2019-12-11 15:12:14 +01:00