llvm-project.git/libc/benchmarks/MemorySizeDistributions.cpp, branch main

Fix build issues with libc mem* benchmarks (#115982)

2024-11-14T19:10:11+00:00

Fix a few issues found when trying to build the benchmark:

Errors

1. Unable to find include "src/__support/macros/config.h" in
LibcMemoryBenchmarkMain.cpp

Warnings

2. Unused variable warning `Index` in MemorySizeDistributions.cpp
3. Fix deprecation warning for const-ref version of `DoNotOptimize`.
warning: 'DoNotOptimize' is deprecated: The const-ref version of
this method can permit undesired compiler optimizations in benchmarks

[libc][benchmarks] Tidy uses of raw_string_ostream (NFC)

2024-09-17T15:25:18+00:00

As specified in the docs,
1) raw_string_ostream is always unbuffered and
2) the underlying buffer may be used directly

( 65b13610a5226b84889b923bae884ba395ad084d for further reference )

Avoid unneeded calls to raw_string_ostream::str(), to avoid excess indirection.

[libc][benchmark] add memmove to size distribution, also update other distributions

2021-11-17T09:22:05+00:00

Differential Revision: https://reviews.llvm.org/D113260

[libc] Simplify implementation of benchmarks

2021-07-28T15:04:19+00:00

This also allows to run the distribution benchmarks in other frameworks
like the Google Benchmark facility.

[libc] update benchmark distributions

2021-07-13T09:59:25+00:00

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

Fix errors in distributions

2021-02-11T21:53:50+00:00

[libc] revamp memory function benchmark

2020-12-17T13:23:33+00:00

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

Fix case mismatch between definition and declaration

2020-11-25T14:23:31+00:00

[libc][NFC] Add probability distributions for memory function sizes

2020-10-15T08:15:58+00:00

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