Re: Sound skipping problems

From: Pyun YongHyeon (yongari_at_rndsoft.co.kr)
Date: 06/08/05

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    Date: Wed, 8 Jun 2005 15:15:32 +0900
To: Jeff Roberson <jroberson@chesapeake.net>

    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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