Date: Wed, 8 Jun 2005 15:15:32 +0900 From: Pyun YongHyeon <yongari@rndsoft.co.kr> To: Jeff Roberson <jroberson@chesapeake.net> Cc: current@freebsd.org Subject: Re: Sound skipping problems Message-ID: <20050608061532.GA5805@rndsoft.co.kr> In-Reply-To: <20050607210453.S16943@mail.chesapeake.net> References: <20050607210453.S16943@mail.chesapeake.net>
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On Tue, Jun 07, 2005 at 11:32:12PM -0400, Jeff Roberson wrote: > I have a patch that should greatly improve the sound skipping problems > people have under heavy io load. Several people sent me traces that > showed the buf daemon running for hundreds of milliseconds with Giant > held, which can hold up the pcm code. The patch is available at: > > http://www.chesapeake.net/~jroberson/flushbuf.diff > > This changes flushbufqueues to flush multiple buffers instead of one > buffer at a time. It also places buffers we failed to flush at the end of > the list, and uses a sentinal to track our progress through the list. > This almost entirely solved the skipping problem for me. Depending on > user feedback we can do a little more to reduce the time spent processing > here. > Unfortunatly, it seems that it doesn't show much difference. HW: Gateway Solo 5300(UP, P3 700MHz, maestro3 driver) As soon as I started to extract mozilla source the sound playing stopped and the system seems to be freezed. (No response from keyboard input except showing ^C.) It seems that there is no difference with/without witness. -- Regards, Pyun YongHyeon http://www.kr.freebsd.org/~yongari | yongari@freebsd.org
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