Date: Sun, 26 Sep 2004 04:46:23 -0700 From: Ryan Freeman <ryan@slipgate.org> To: "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: FreeBSD Mailing List <freebsd-current@freebsd.org> Subject: Re: Sound performance problems in FreeBSD Message-ID: <20040926114623.GA7990@slipgate.org> In-Reply-To: <200409261342.34874.doconnor@gsoft.com.au> References: <20040926025317.GA5812@slipgate.org> <200409261342.34874.doconnor@gsoft.com.au>
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On Sun, Sep 26, 2004 at 01:42:25PM +0930, Daniel O'Connor wrote: > On Sun, 26 Sep 2004 12:23, Ryan Freeman wrote: > > > > +following: > > > An easy way to reproduce these > > > skips is to run `while true; do sysctl vm.vmtotal; done`, while > > > playing an mp3. > > I suspect that sysctl involves doing lots of locking and will do weird > things.. > Does it happen if you run a CPU using userland proc inseadt? > The problem is, it isn't just that sysctl command that does it. I find that even running gkrellm makes the ticking worse. if i close gkrellm, it reduces the ticks/sound stretches. that sysctl was just an easy way to make the problem _really_ stand out it seems. iirc when i was using 5.2.1 i found that just disabling the proc chart in gkrellm seemed to help a lot. haven't bothered to try it now. - ryan
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