Messages in this thread | | | Date | Fri, 01 Aug 2003 12:29:02 -0700 | From | Ben Greear <> | Subject | Re: What's the timeslice size for kernel 2.6.0-test2, IA32? |
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Mark Mielke wrote: > On Fri, Aug 01, 2003 at 02:04:46PM -0230, Stephen Anthony wrote: > >>It would be great if sleeps were 1ms accurate instead of 10ms. It would >>make synchronization code a lot easier. > > > Doesn't this depend on what HZ you define for the kernel? > > If you want 1ms sleep, just set HZ to 1000HZ+, and give your process a > high priority? > > mark >
From user space, at least, you can configure /dev/rtc to 1024HZ and then select on it's file descriptor. That will give you fairly reliable 1ms (or so) sleeps, especially if you set your niceness to a high-priority setting.
-- Ben Greear <greearb@candelatech.com> Candela Technologies Inc http://www.candelatech.com
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