Messages in this thread | | | Date | Thu, 26 Feb 2009 19:55:31 +0900 (JST) | Subject | Re: [PATCH] cpuacct: add a branch prediction | From | "KAMEZAWA Hiroyuki" <> |
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Peter Zijlstra wrote: > On Thu, 2009-02-26 at 19:28 +0900, KAMEZAWA Hiroyuki wrote: > >> Taking hierarchy mutex while reading will make read-side stable. > > We're talking about scheduling here, taking a mutex to stop scheduling > won't work, nor will it be acceptible to use anything that will. > I'm sorry but I thought we are talking about cpuacct subsystem and not cpu subsystem....cpuacct subsystem's information is used for schedule ?
Is there a user of information gathered by cpuacct subsystem in the kernel ? I thought only user(reader) is the user who read cpuacct.usage file.
Thanks, -Kame
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