Date: Tue, 3 May 2005 01:18:26 -0700 (PDT) From: Arne "Wörner" <arne_woerner@yahoo.com> To: SAMU <samspeedu@mail.ru>, freebsd-performance@freebsd.org Subject: Re: Very low disk performance on 5.x Message-ID: <20050503081826.72663.qmail@web41201.mail.yahoo.com> In-Reply-To: 6667
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--- Andrey Smagin <samspeedu@mail.ru> wrote: > driver :) ) or call of SB buffer fill. How to diagnose what > uninterruptable > process(or in system function) can to lock CPU for so much time > (1 sound buffer - 4096 bytes 4096/176400=~23ms) ? And, please, > help me with > tuning of sound performance. I think it depend from disk issues. > I can produce the same effect here with dd if=/dev/zero of=/dev/null bs=400k count=10000 (no disc involved). It gets very nasty with bs=1m -Arne __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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