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(parent: 2d48b41) | patch
Faster memset on x64
authorOndrej Bilka <neleai@seznam.cz>
Mon, 20 May 2013 06:26:00 +0000 (08:26 +0200)
committerOndrej Bilka <neleai@seznam.cz>
Mon, 20 May 2013 06:32:45 +0000 (08:32 +0200)
commitb2b671b677d92429a3d41bf451668f476aa267ed
treea211523045be91beb43abbf7ebacb7a74ddb8adctree | snapshot
parent2d48b41c8fa610067c4d664ac2339ae6ca43e78ccommit | diff
Faster memset on x64

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
ChangeLog diff | blob | blame | history
sysdeps/x86_64/memset.S diff | blob | blame | history
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