Date: Thu, 15 Dec 2011 17:42:09 +0100 From: Attilio Rao <attilio@freebsd.org> To: Mike Tancsa <mike@sentex.net> 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: <CAJ-FndAR10dwgtb11BLG2savNc8ZX9_nSkaj%2B5_RthDhsOgTnQ@mail.gmail.com> In-Reply-To: <4EEA227E.7080704@sentex.net> 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>
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2011/12/15 Mike Tancsa <mike@sentex.net>: > On 12/15/2011 11:26 AM, Attilio Rao wrote: >> >> Hi Mike, >> was that just the same codebase with the switch SCHED_4BSD/SCHED_ULE? > > Hi Attilio, > =C2=A0 =C2=A0 =C2=A0 =C2=A0It was the same codebase. > > >> Could you retry the bench checking CPU usage and possible thread >> migration around for both cases? > > I can, but how do I do that ? I'm thinking now to a better test-case for this: can you try that on a tmpfs volume? Also what filesystem you were using? How many CPUs were in place? Did you reboot before to move the steal_thresh value? Attilio --=20 Peace can only be achieved by understanding - A. Einstein
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