From: Andi Kleen <andi@firstfloor.org>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Andi Kleen <andi@firstfloor.org>, Cyrus Massoumi <cyrusm@gmx.net>,
Diego Calleja <diegocg@gmail.com>,
Stephen Cuppett <cuppett@gmail.com>,
linux-kernel@vger.kernel.org, mingo@elte.hu,
a.p.zijlstra@chello.nl
Subject: Re: Performance versus FreeBSD 7.0
Date: Thu, 6 Mar 2008 14:12:30 +0100 [thread overview]
Message-ID: <20080306131230.GA24689@one.firstfloor.org> (raw)
In-Reply-To: <200803062353.07298.nickpiggin@yahoo.com.au>
> I think since the mmap_sem madvise problem was solved, the kernel
> didn't really have any further problems with this workload.
Good.
> It is doing a lot of context switches, no IO, and not a lot of
Yes sysbench is a pretty poor benchmark i think, especially
on systems with a lot of cores. I ran into this on some of my
own testing too. I don't think it makes too much
sense to tune for it seriously, but of course it doesn't hurt
when Linux does well on it anyways.
-Andi
next prev parent reply other threads:[~2008-03-06 13:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-29 13:38 Performance versus FreeBSD 7.0 Stephen Cuppett
2008-02-29 14:54 ` Diego Calleja
2008-03-03 13:04 ` Nick Piggin
2008-03-03 19:02 ` Cyrus Massoumi
2008-03-03 19:24 ` Nick Piggin
2008-03-03 22:47 ` Cyrus Massoumi
2008-03-03 23:23 ` Andi Kleen
2008-03-04 5:51 ` Cyrus Massoumi
2008-03-06 12:53 ` Nick Piggin
2008-03-06 13:12 ` Andi Kleen [this message]
2008-03-03 12:34 ` Andi Kleen
2008-03-06 17:29 ` debian developer
2008-03-06 17:34 ` debian developer
[not found] <a2dDb-60y-29@gated-at.bofh.it>
[not found] ` <a2eSt-7UK-1@gated-at.bofh.it>
2009-01-25 10:07 ` Lx
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080306131230.GA24689@one.firstfloor.org \
--to=andi@firstfloor.org \
--cc=a.p.zijlstra@chello.nl \
--cc=cuppett@gmail.com \
--cc=cyrusm@gmx.net \
--cc=diegocg@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=nickpiggin@yahoo.com.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.