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| author | Ondrej Bilka <neleai@seznam.cz> | 2013-05-20 08:26:00 +0200 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2016-05-05 06:29:28 -0700 |
| commit | 143ce75a4203a78d79549b00e570a5bb429c44cf (patch) | |
| tree | 3aa10cda2b9d0d9f18d1e0df81162cbd98f11910 /posix/tst-nice.c | |
| parent | 16e49ca0c878c5cef2638f828c85bbedfb95c83b (diff) | |
| download | glibc-143ce75a4203a78d79549b00e570a5bb429c44cf.tar.gz glibc-143ce75a4203a78d79549b00e570a5bb429c44cf.tar.xz glibc-143ce75a4203a78d79549b00e570a5bb429c44cf.zip | |
Faster memset on x64 hjl/2.17/memset
This implementation speed up memset in several ways. First is avoiding expensive computed jump. Second is using fact that arguments of memset are most of time aligned to 8 bytes. Benchmark results on: kam.mff.cuni.cz/~ondra/benchmark_string/memset_profile_result27_04_13.tar.bz2 (cherry picked from commit b2b671b677d92429a3d41bf451668f476aa267ed)
Diffstat (limited to 'posix/tst-nice.c')
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