Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Wed, 8 Apr 2015 21:28:50 +0200
From: Daniel Cegiełka <>
Cc: John Mudd <>
Subject: Re: musl perf, 20% slower than native build?

2015-04-08 21:10 GMT+02:00 John Mudd <>:

> Here's output from perf record/report for libc. This looks consistent with
> the 5% longer run time.
> native:
>      2.20%   python         [.] __memcpy_ssse3

> musl:
>      4.74%   python              [.] memcpy

I was able to get twice speed-up (in my code) just by replacing memcpy
in the musl.


Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.