Date: Fri, 28 Jun 2002 11:28:06 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: Julian Elischer <julian@elischer.org> Cc: FreeBSD current users <current@FreeBSD.ORG> Subject: Re: something funny with soft updates? Message-ID: <200206281828.g5SIS6xI006284@apollo.backplane.com> References: <Pine.BSF.4.21.0206280218440.72967-100000@InterJet.elischer.org>
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:1389.803u 594.961s 35:59.14 91.9% 2697+2248k 11839+66940io 3701pf+0w
:
:It's interesting that despite the the extra writes (63640 of them)
:it took almost the same time from all metrics.
:
:this is a 35 minute subsection of buildworld..
:
:i.e. buildworld up to a particular point,
:
:there may not be anything wrong but I expected more improvement.
:I remember that when I first committed softupdates it made a noticable
:difference....
Julian, please note that a buildworld does *NOT* seriously exercise
the filesystem. I/O ops are mostly reads. The only area where
softupdates might have a major effect would be the rm -rf of the
object tree at the beginning.
-Matt
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