Date: Thu, 20 Aug 2009 07:42:55 +0100 From: Bob Bishop <rb@gid.co.uk> To: "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: freebsd-stable@freebsd.org Subject: Re: Blocked process Message-ID: <1C09D3DE-5DA2-4AC6-B546-DA8E6715E1F4@gid.co.uk> In-Reply-To: <200908201204.24914.doconnor@gsoft.com.au> References: <200908201204.24914.doconnor@gsoft.com.au>
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Hi, On 20 Aug 2009, at 03:34, Daniel O'Connor wrote: > [...] > The problem appears to now be that the userland process that reads > data > out of the kernel is being stalled for over 4 seconds. This process > reads from the kernel and does some minor processing and then writes > it > out to a child process to do some more work on it. > > [...] > Given that renice'ing has an effect it seems to be a scheduler > problem, [etc] Which scheduler are you using? Have you tried the other one? -- Bob Bishop rb@gid.co.uk
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