Date: Thu, 15 Dec 2011 11:52:11 -0500 From: Mike Tancsa <mike@sentex.net> To: Attilio Rao <attilio@freebsd.org> Cc: Ivan Klymenko <fidaj@ukr.net>, mdf@freebsd.org, Doug Barton <dougb@freebsd.org>, freebsd-stable@freebsd.org, Jilles Tjoelker <jilles@stack.nl>, "O. Hartmann" <ohartman@mail.zedat.fu-berlin.de>, Current FreeBSD <freebsd-current@freebsd.org>, freebsd-performance@freebsd.org Subject: Re: SCHED_ULE should not be the default Message-ID: <4EEA25BB.7040706@sentex.net> In-Reply-To: <CAJ-FndAR10dwgtb11BLG2savNc8ZX9_nSkaj%2B5_RthDhsOgTnQ@mail.gmail.com> References: <4EE1EAFE.3070408@m5p.com> <4EE22421.9060707@gmail.com> <4EE6060D.5060201@mail.zedat.fu-berlin.de> <4EE69C5A.3090005@FreeBSD.org> <20111213104048.40f3e3de@nonamehost.> <20111213230441.GB42285@stack.nl> <4ee7e2d3.0a3c640a.4617.4a33SMTPIN_ADDED@mx.google.com> <CAMBSHm89SkzGVgk9kNwBQoR62pXKjhJ%2BqXJK0qwC20r9p%2Bu-bw@mail.gmail.com> <4EE8D607.1000504@sentex.net> <CAJ-FndBP1C5W-LAB4QF-ro%2BuaEaTx7ZzAAS3nXFY_82WXt53YQ@mail.gmail.com> <4EEA227E.7080704@sentex.net> <CAJ-FndAR10dwgtb11BLG2savNc8ZX9_nSkaj%2B5_RthDhsOgTnQ@mail.gmail.com>
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On 12/15/2011 11:42 AM, Attilio Rao wrote: > > I'm thinking now to a better test-case for this: can you try that on a > tmpfs volume? There is enough RAM in the box so that it should not touch the disk, and I was sending the output to /dev/null, so it was not writing to the disk. > > Also what filesystem you were using? UFS > How many CPUs were in place? 4 > Did you reboot before to move the steal_thresh value? No. ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/
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