Date: Tue, 3 May 2005 11:43:55 +0400 From: Andrey Smagin <samspeedu@mail.ru> To: freebsd-performance@freebsd.org Subject: Re: Very low disk performance on 5.x Message-ID: <1534004626.20050503114355@mail.ru> In-Reply-To: <42770026.80901@he.iki.fi> References: <19879.1115061648@critter.freebsd.dk> <20050502214208.M87351@fledge.watson.org> <42770026.80901@he.iki.fi>
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Hi ALL,
I not sure that it only low disk performance, but.
When i copying /usr/src tree from file server (AMD K6-2 225) to my Duron
1133(1GB RAM), speed is about 3-4MBytes/s. But played music on my PC is some
gappy. Also removing /usr/ports tree have same much effect for music. I set
large buffers in all avaliable players(mpg123, mpg321, mplayer, xine, xmms)
on my system (FBSD6.0-current 1 may 05), but it don't have effect.
I think that somthing lock IRQ from sound card(SBLive emu10k1 classic FBSD
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.
--
Best regards,
Andrey mailto:samspeedu@mail.ru
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