Date: Wed, 06 Jul 2011 17:05:41 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: FreeBSD Current <freebsd-current@freebsd.org>, "Hartmann, O." <ohartman@zedat.fu-berlin.de>, arrowdodger <6yearold@gmail.com>, freebsd-questions@freebsd.org Subject: Re: Heavy I/O blocks FreeBSD box for several seconds Message-ID: <5080.1309971941@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 06 Jul 2011 10:01:32 MST." <20110706170132.GA68775@troutmask.apl.washington.edu>
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In message <20110706170132.GA68775@troutmask.apl.washington.edu>, Steve Kargl w rites: >I periodically ran the same type test in the 2008 post over the >last three years. Nothing has changed. I even set up an account >on one node in my cluster for jeffr to use. He was too busy to >investigate at that time. Isn't this just the lemming-syncer hurling every dirty block over the cliff at the same time ? To find out: Run gstat and keep and eye on the leftmost column The road map for fixing that has been known for years... -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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