Re: Dynamic tick for 2.6.14 - what's the plan?

From: Tony Lindgren (tony_at_atomide.com)
Date: 08/31/05

  • Next message: Mark Burton: "PCI Master Aborts effect multiple subsystems?"
    Date:	Wed, 31 Aug 2005 10:44:19 +0300
    To: Alistair John Strachan <s0348365@sms.ed.ac.uk>
    
    

    * Alistair John Strachan <s0348365@sms.ed.ac.uk> [050830 18:57]:
    > On Tuesday 30 August 2005 13:31, Tony Lindgren wrote:
    > [snip]
    > > >
    > > > Same issue, it's waiting on dynticks before being reworked.
    > >
    > > Also one more minor issue; Dyntick can cause slow boots with dyntick
    > > enabled from boot because the there's not much in the timer queue
    > > until init.
    > >
    > > This probably does not show up much on x86 though because of the
    > > short hardware timers.
    >
    > You could disable it until jiffies >= 0; this covers the boot criteria and
    > still allows for moderate savings post boot (though maybe on embedded systems
    > the delay is too long?).

    Yeah, that's true. Or just enable it from an init script via sysfs.

    Tony
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