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9 Commits

Author SHA1 Message Date
Wilco Dijkstra 53d501d6e9 AArch64: Rename IS_ARES to IS_NEOVERSE_N1 
Rename IS_ARES to IS_NEOVERSE_N1 since that is a bit clearer.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit 0f6278a8793a5d04ea31878119eccf99f469a02d)
 2020-10-12 18:29:38 +01:00
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.
 2019-01-09 10:35:34 +00:00
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.
 2019-01-01 00:11:28 +00:00
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.
 2018-06-12 21:29:11 +05:30
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.
 2018-02-22 08:38:47 -08:00
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.
 2018-01-01 00:32:25 +00:00
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.
 2017-11-20 18:25:04 +05:30
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
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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
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length=240,align1=0,align2=15:  20.31 (-4.00%)  20.31 (-4.00%)  19.53
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length=368,align1=0,align2=23:  25.00 (-3.23%)  25.00 (-3.23%)  24.22
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length=496,align1=0,align2=31:  29.69 (0.00%)   30.47 (-2.63%)  29.69
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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
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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
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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
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length=1152,align1=0,align2=36:         58.59 (-1.35%)  55.47 (4.05%)   57.81
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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.
 2017-08-09 06:32:17 +05:30
Steve Ellcey d2e4346a30 Add ifunc support for aarch64. 
* sysdeps/aarch64/dl-machine.h: Include cpu-features.c.
	(DL_PLATFORM_INIT): New define.
	(dl_platform_init): New function.
	* sysdeps/aarch64/ldsodefs.h: Include cpu-features.h.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c: New file.
	* sysdeps/unix/sysv/linux/aarch64/cpu-features.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc-start.c: Likewise.
 2017-03-15 16:46:26 -07:00