From owner-freebsd-hackers@FreeBSD.ORG  Wed Oct 31 20:37:17 2012
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Date: Wed, 31 Oct 2012 13:37:16 -0700
Message-ID: <CAGH67wRZkwnd_CrD-c0Gqk0qmSW=L+yFU_adK7prQckG8Z_x1w@mail.gmail.com>
Subject: Re: Threaded 6.4 code compiled under 9.0 uses a lot more memory?..
From: Garrett Cooper <yanegomi@gmail.com>
To: Konstantin Belousov <kostikbel@gmail.com>
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Cc: Ian Lepore <freebsd@damnhippie.dyndns.org>,
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 Alfred Perlstein <bright@mu.org>, Dan Nelson <dnelson@allantgroup.com>,
 Karl Pielorz <kpielorz_lst@tdx.co.uk>
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On Wed, Oct 31, 2012 at 12:06 PM, Konstantin Belousov
<kostikbel@gmail.com> wrote:

...

> If not wired, swapout might cause a delay of the next pat, leading to
> panic.

Yes. We need to write microbenchmarks and do more careful analysis to
figure out where and why things have grown. Maybe a mock daemon and
application (single and multithreaded) would be a good start?

There are some example programs in the open_posix_testsuite (see LTP)
that might be good for at least getting non-daemon apps that use
pthreads that can be used for instrumenting where and why things have
changed.

Thanks!
-Garrett