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Message-ID: <20151024124312.GN10551@port70.net>
Date: Sat, 24 Oct 2015 14:43:12 +0200
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Cc: Rich Felker <dalias@...c.org>
Subject: Re: [PATCH] configure: add gcc flags for better link-time
optimization
* Denys Vlasenko <vda.linux@...glemail.com> [2015-10-24 00:00:56 +0200]:
> What's importand is how many pages are dirtied.
> Here's a test with Aboriginal's x86_64 static busybox:
>
...
>
> No. Only two pages are mapped, not three.
>
> This is pretty impressive. However, this is a small busybox config:
> only 31 applet.
>
> I have a complete (~320 applets) 32-bit static busybox config built
> against uclibc, and it has only 2 pages .data+.bss
>
> Will test & see how close to that can musl get.
>
http://www.etalabs.net/compare_libcs.html
hm this says min dirty is 3pages on uclibc with static linking.
in case you repeat the experiments with glibc
a 'dirty pages with static busybox' entry would be
useful on that comparision page.
> I'll continue sending patches which allow to carry over some
> data size reductions from uclibc to musl.
nice
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