Date: Sat, 10 May 2003 09:02:15 -0400 From: Bosko Milekic <bmilekic@unixdaemons.com> To: Paul Richards <paul@freebsd-services.com> Cc: current@freebsd.org Subject: Re: Interrupt latency problems Message-ID: <20030510130214.GB50135@unixdaemons.com> In-Reply-To: <1052570246.27195.6.camel@cf.freebsd-services.com> References: <1052570246.27195.6.camel@cf.freebsd-services.com>
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On Sat, May 10, 2003 at 01:37:27PM +0100, Paul Richards wrote: > I'm having real problems with current with heavy disk activity. > > When working in X and updating ports which causes a lot of disk activity > I get *very* poor interactive responses. Keypresses can not appear for > seconds and mouse movement is very jerky and unresponsive. > > I'm wondering if something is holding locks a long time in interrupt > handlers and causing mouse/keyboard interrupts to be lost? > > Since this is caused by heavy disk activity then my first guess would be > the ATA driver. > > Is anyone else seeing anything like this? > > -- > Paul Richards <paul@freebsd-services.com> > FreeBSD Services Ltd What scheduler are you running with? Try switching ULE <-> 4BSD and see if it changes anything. -- Bosko Milekic bmilekic@unixdaemons.com bmilekic@FreeBSD.org
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