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From: Jason Garrett-Glaser <darkshikari@gmail.com>
Date: Sat, 10 Apr 2010 13:21:52 -0700
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Subject: Re: [PATCH 00 of 41] Transparent Hugepage Support #17
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To: Andrea Arcangeli <aarcange@redhat.com>
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>> (i've Cc:-ed x264 benchmarking experts - in case i missed something)
>
> It definitely worth trying... nice idea. But we need glibc to increase
> vm_end in 2M aligned chunk, otherwise we've to workaround it in the
> kernel, for short lived allocations like gcc to take advantage of
> this. I managed to get 200M of gcc (of ~500M total) of translate.o
> into hugepages with two glibc params, but I want it all in transhuge
> before I measure it. I'm running it on the workstation that had 1 day
> and half of uptime and it's still building more packages as I write
> this and running large vfs loads in /usr and maildir.
>

Just an FYI on this--if you're testing x264, it performs _all_ memory
allocation on init and never mallocs again, so it's a good testbed for
something that uses a lot of memory but doesn't malloc/free a lot.

Jason

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