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Re: Streamy FS writes found detrimental.

From: Ben Collins <bcollins_at_debian.org>
Date: 2002-02-26 22:07:12 CET

On Tue, Feb 26, 2002 at 12:37:00PM -0800, Zack Weinberg wrote:
> On Tue, Feb 26, 2002 at 01:14:04PM -0600, Kirby C. Bohling wrote:
> > Doesn't gcc have some specific testing done for memory consumption, time
> > taken and output code speed/size.
>
> Not automated, unfortunately. There is instrumentation built into the
> compiler for time taken and memory consumed, which could be used for
> automated tests, but DejaGNU is too inflexible.
>
> Which doesn't in the slightest change the value of what you're
> saying. It all sounds like a good idea.
>
> > Having the elapsed time, BDB logs generated, and peak VM required? I
> > know how to script up most of the first 2, the third I know how to check
> > by hand (automating it would be very handy any ideas there?).
>
> Most memory allocation goes through APR pools, so instrument them
> somehow; have a command line switch to dump allocation statistics.

You can recompile libapr with pool debug (and svn too, if you want more
precise debug info). Shows very verbose information concerning pools and
allocations.

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Received on Sat Oct 21 14:37:10 2006

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