Messages in this thread | | | Date | Sat, 19 Sep 2009 16:55:01 +0200 | From | Arjan van de Ven <> | Subject | Re: tickless and HZ=1000 throughput advantage? |
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On Sat, 19 Sep 2009 15:47:24 +0100 Daniel J Blueman <daniel.blueman@gmail.com> wrote:
> On tickless kernels, is the general consensus that for non-embedded > systems, selecting HZ=1000 gives slightly more throughput in > particular situations than HZ=100 or 250, due to finer timer > intervals/granularity?
it's not about throughput. It's about latency for some things.... although now that select/poll and co use hrtimers it's not as critical anymore.
the HZ timers aren't used much for anything time-critical nowadays.
-- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org
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