| Date | Tue, 2 Jun 2015 15:58:33 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [patch 0/7] timers: Footprint diet and NOHZ overhead mitigation |
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On Wed, 27 May 2015, Eric Dumazet wrote: > I finally got back two hosts with 72 cpus where I can try your patches.
Waiting for your results :)
> I have one comment about socket TCP timers : They are re-armed very > often, but they are never canceled (unless the socket is dismantled) > > I am too lazy to search for the commit adding this stuff (before git), > but I guess it helped a lot RPC sessions : No need to cancel a timer if > we're likely to rearm it in the following 10 usec ;)
Right, but that's a 'cancel + rearm' in the timer core code, unless the expiry time does not change.
Thanks,
tglx
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