Date: Mon, 20 Aug 2001 10:08:06 -0700 From: Jeff Behl <jeff@expertcity.com> To: freebsd-fs@freebsd.org Subject: syncer delay? Message-ID: <3B8143F6.4030908@expertcity.com>
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howdy, We have a very time sensitive application that we think is being affected by the kernel syncer process. While doing a poll call, every 30 seconds we will have iterations that take 300+ ms longer than on average. This only started happening after our app started needing to log data to disk, and the delays are longer when there are more connections (more to write/log). I turned on IDE write caching (hw.ata.wc) but this has had no noticeable effect. What else can we do to try and minimize this hiccup every 30 seconds? Is adjusting the time between sync's a worthwhile approach (using sysctl)? We're using 4.3-RELEASE. thanks. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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