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glibc/sysdeps/x86
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Sajan Karumanchi 6e02b3e932 x86: Adding an upper bound for Enhanced REP MOVSB. 
In the process of optimizing memcpy for AMD machines, we have found the
vector move operations are outperforming enhanced REP MOVSB for data
transfers above the L2 cache size on Zen3 architectures.
To handle this use case, we are adding an upper bound parameter on
enhanced REP MOVSB:'__x86_rep_movsb_stop_threshold'.
As per large-bench results, we are configuring this parameter to the
L2 cache size for AMD machines and applicable from Zen3 architecture
supporting the ERMS feature.
For architectures other than AMD, it is the computed value of
non-temporal threshold parameter.

Reviewed-by: Premachandra Mallappa <premachandra.mallappa@amd.com>
 		2021-02-02 12:42:15 +01:00
..
bits <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00
fpu Drop nan-pseudo-number.h usage from tests 2021-01-04 20:49:56 +05:30
include x86: Adding an upper bound for Enhanced REP MOVSB. 2021-02-02 12:42:15 +01:00
nptl Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sys/platform <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00
Makeconfig
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Makefile x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
Versions <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00
__longjmp_cancel.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
abi-note.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
atomic-machine.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
cacheinfo.c Fix misplaced const 2021-01-25 15:09:02 +01:00
cacheinfo.h x86: Adding an upper bound for Enhanced REP MOVSB. 2021-02-02 12:42:15 +01:00
cet-control.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
check-cet.awk Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
configure x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
configure.ac x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
cpu-features-offsets.sym
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cpu-features.c sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305] 2021-02-01 11:00:52 -08:00
cpu-tunables.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-cacheinfo.h x86: Adding an upper bound for Enhanced REP MOVSB. 2021-02-02 12:42:15 +01:00
dl-cet.c x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
dl-get-cpu-features.c Fix misplaced const 2021-01-25 15:09:02 +01:00
dl-hwcap.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-isa-level.h ldconfig/x86: Store ISA level in cache and aux cache 2021-01-13 05:51:17 -08:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-minsigstacksize.h sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305] 2021-02-01 11:00:52 -08:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-procruntime.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-prop.h x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
dl-tunables.list Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
elf-initfini.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
elide.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
float128-abi.h
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fpu_control.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
get-cpuid-feature-leaf.c <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00
get-isa-level.h <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00
hp-timing.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
init-arch.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
isa-level.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
jmp_buf-ssp.sym
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ldbl2mpn.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ldsodefs.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
libc-start.c Use hidden visibility for early static PIE code 2021-01-21 15:55:01 +00:00
libc-start.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
link_map.h x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
linkmap.h
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longjmp.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
string_private.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sysdep.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tininess.h
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tst-cet-legacy-1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-1a.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-2a.c
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tst-cet-legacy-3.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-4.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-4a.c
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tst-cet-legacy-4b.c
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tst-cet-legacy-4c.c
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tst-cet-legacy-5.c x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
tst-cet-legacy-5a.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-5b.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-6.c x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
tst-cet-legacy-6a.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-6b.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-7.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-8.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-9-static.c x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
tst-cet-legacy-9.c x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
tst-cet-legacy-10-static.c x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
tst-cet-legacy-10.c x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
tst-cet-legacy-mod-1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-4.c
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tst-cet-legacy-mod-5.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-5a.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-5b.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-5c.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-6.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-6a.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-6b.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-6c.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-cet-legacy-mod-6d.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cpu-features-cpuinfo.c x86: Properly match CPU features in /proc/cpuinfo [BZ #27222] 2021-01-22 10:15:46 -08:00
tst-cpu-features-supports.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-get-cpu-features-static.c
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tst-get-cpu-features.c x86: Properly set usable CET feature bits [BZ #26625] 2021-01-29 03:58:11 -08:00
tst-ifunc-isa-1-static.c x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072] 2021-01-21 10:22:26 -08:00
tst-ifunc-isa-1.c x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072] 2021-01-21 10:22:26 -08:00
tst-ifunc-isa-2-static.c x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072] 2021-01-21 10:22:26 -08:00
tst-ifunc-isa-2.c x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072] 2021-01-21 10:22:26 -08:00
tst-ifunc-isa.h x86: Check ifunc resolver with CPU_FEATURE_USABLE [BZ #27072] 2021-01-21 10:22:26 -08:00
tst-isa-level-1.c <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00
tst-isa-level-mod-1-baseline.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v2.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v3.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1-v4.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-isa-level-mod-1.c x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
tst-ldbl-nonnormal-printf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-setjmp-cet.c x86: Set header.feature_1 in TCB for always-on CET [BZ #27177] 2021-01-13 05:03:34 -08:00