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31 Commits

Author SHA1 Message Date
Guillaume Chatelet
4a9bcb605b [libc] Memory function benchmarks: rename MemcmpConfiguration in MemcmpOrBcmpConfiguration 
This will help make sense of the double use of the same type in https://reviews.llvm.org/D111622#inline-1065560.

Differential Revision: https://reviews.llvm.org/D111868
 2021-10-15 13:42:29 +00:00
Guillaume Chatelet
adc18ad6ac [libc] move benchmark function registration to a different file 2021-09-30 13:11:33 +00:00
Guillaume Chatelet
219a1d217d [libc] Fix running benchmarks under msan/asan 
asan/msan intercepts `aligned_malloc` and misbehave when the requested
alignment is greater than 512.
b041b613e6/compiler-rt/lib/asan/asan_allocator.cpp (L430-L431)
 2021-09-08 14:43:55 +00:00
Cheng Wang
7abd8f6c6e [libc][Obvious] Fix typos 2021-09-05 10:54:52 +08:00
Fangrui Song
40aab0412f [test] Migrate -gcc-toolchain with space separator to --gcc-toolchain= 
Space separated driver options are uncommon but Clang traditionally
did not do a good job. --gcc-toolchain= is the preferred form.
 2021-08-20 15:24:58 -07:00
Guillaume Chatelet
c8f79892af [libc] Add a trivial implementation for bcmp 
Differential Revision: https://reviews.llvm.org/D108225
 2021-08-19 17:55:16 +00:00
Guillaume Chatelet
c82ba4b820 [libc] Update size distributions for memory benchmarks 
All distributions have been updated using 7 days worth of data.
 2021-08-09 14:22:32 +00:00
Andre Vieira
2f002817fb [libc] Fix Memory Benchmarks code after rename 
Differential Revision: https://reviews.llvm.org/D107376
 2021-08-04 09:17:12 +01:00
Guillaume Chatelet
e4dee76224 [libc] Allow benchmarking several implementations at the same time. 
Next step is to generate an archive with all implementations and a header listing them all.

Differential Revision: https://reviews.llvm.org/D107336
 2021-08-03 10:53:11 +00:00
Guillaume Chatelet
59198d062f [libc] Add a Google Benchmark target to support continuous monitoring of memory operation performance 
The next step is to be able to benchmark several implementations at once and compare which one performs best on a particular machine.

Differential Revision: https://reviews.llvm.org/D107265
 2021-08-02 12:14:11 +00:00
Guillaume Chatelet
d3c70d9f77 [libc] Simplify implementation of benchmarks 
This also allows to run the distribution benchmarks in other frameworks
like the Google Benchmark facility.
 2021-07-28 15:04:19 +00:00
Guillaume Chatelet
8724a7ec11 [libc] update benchmark distributions 
All distributions (expect D) have been updated using 7 days worth of data.
Distributions are smoother.
This patch also moves data from header file to individual csv file. It
helps the editor and allows easier export/plotting of the data.

Differential Revision: https://reviews.llvm.org/D105766
 2021-07-13 09:59:25 +00:00
Guillaume Chatelet
87065c0d24 [libc] add benchmarks for memcmp and bzero 
Differential Revision: https://reviews.llvm.org/D104511
 2021-06-23 14:19:40 +00:00
Guillaume Chatelet
8d64ed8544 [libc] Generate one benchmark per implementation 
We now generate as many benchmarks as there are implementations.

Differential Revision: https://reviews.llvm.org/D102156
 2021-06-17 12:14:10 +00:00
Simon Pilgrim
c2ab3d2c85 LibcBenchmark.h - add missing implicit cmath header dependency. NFCI. 
Noticed while investigating if we can remove an unnecessary MathExtras.h include from SmallVector.h
 2021-06-06 10:39:31 +01:00
Guillaume Chatelet
74916008a8 Fix errors in distributions 2021-02-11 21:53:50 +00:00
Guillaume Chatelet
d4bb3ef532 [libc][NFC] Remove dead code 2021-01-19 08:11:45 +00:00
Guillaume Chatelet
ab57780716 [libc] Refresh benchmark progress bar when needed. 2021-01-13 14:06:51 +00:00
Guillaume Chatelet
223a6f94c5 [libc] remove modulo from CircularArrayRef iterator 2021-01-06 12:03:52 +00:00
Guillaume Chatelet
cfe096d1f6 Fix dead link 2020-12-17 15:49:28 +01:00
Guillaume Chatelet
deae7e982a [libc] revamp memory function benchmark 
The benchmarking infrastructure can now run in two modes:
 - Sweep Mode: which generates a ramp of size values (same as before),
 - Distribution Mode: allows the user to select a distribution for the size paramater that is representative from production.

The analysis tool has also been updated to handle both modes.

Differential Revision: https://reviews.llvm.org/D93210
 2020-12-17 13:23:33 +00:00
Guillaume Chatelet
d899f9970e Fix case mismatch between definition and declaration 2020-11-25 14:23:31 +00:00
Guillaume Chatelet
c400e01c62 [libc][NFC] Add probability distributions for memory function sizes 
This patch adds memory function size distributions sampled from different applications running in production.
This will be used to benchmark and compare memory functions implementations.

Differential Revision: https://reviews.llvm.org/D89401
 2020-10-15 08:15:58 +00:00
Guillaume Chatelet
cba533febc Fix conjuntion of -Werror,-Wsuggest-override with google/benchmark 2020-10-14 15:26:55 +00:00
Anthony Steinhauser
ef36e8380a [libc] Using llvm_libc memcpy in mem* benchmarks. 
Currently the mem* benchmarks use memcpy from Glibc and memset from LLVM libc.
That's misleading and produces inconsistent results and behaviors.

This change makes Memcpy.cpp consistent with Memset.cpp:
https://github.com/llvm/llvm-project/blob/master/libc/benchmarks/Memset.cpp#L49

Reviewers: sivachandra

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D88271
 2020-09-24 22:03:52 -07:00
Pavel Labath
9cb222e749 [cmake] Make gtest include directories a part of the library interface 
This applies the same fix that D84748 did for macro definitions.
Appropriate include path is now automatically set for all libraries
which link against gtest targets, which avoids the need to set
include_directories in various parts of the project.

Differential Revision: https://reviews.llvm.org/D86616
 2020-08-27 15:35:57 +02:00
Anthony Steinhauser
25d759c143 [libc] Make benchmark boxplots transparent. 
So that the configuration box does not make a part of the plot invisible.

Reviewers: sivachandra

Differential Revision: https://reviews.llvm.org/D85953
 2020-08-17 07:34:26 -07:00
Chris Gyurgyik
d28f67292e [libc] [obvious] Fix typographical error. 2020-08-14 08:34:42 -04:00
Andre Vieira
c051312eb2 [libc][benchmark] Add display option to render.py3 
Differential Revision: https://reviews.llvm.org/D83380
 2020-07-13 12:09:14 +01:00
Anthony Steinhauser
1a377055a7 [libc] Migrate the libc benchmark instruction to ninja. 
Reviewers: sivachandra

    Reviewed By: sivachandra

    Differential Revision: https://reviews.llvm.org/D82143
 2020-06-18 21:54:30 -07:00
Siva Chandra Reddy
438f7fc068 [libc][benchmarks] Link the memory benchmark exes to functions from LLVM libc. 
Summary:
To get the target order correct, the benchmarks directory has been moved
one level higher. Previously, it was living in the utils directory. The
utils directory is a collection of utils which are to be used by the
tests and implementations. However, benchmarks *use* the
implementations. So, moving it out of utils helps us setup proper
target level dependencies.

Reviewers: gchatelet

Differential Revision: https://reviews.llvm.org/D81910
 2020-06-17 11:42:26 -07:00