Re: [ANNOUNCE] ktimers subsystem

[Ingo Molnar]

* Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:

> > > This revealed a reasonable explanation for this behaviour. Both 
> > > networking and disk I/O arm a lot of timeout timers (the maximum number 
> > > of armed timers during the tests observed was ~400000).
> > 
> > This triggers the obvious question: where are these timers coming from? 
> > You don't think that having that much timers in first place is little 
> > insane (especially if these are kernel timers)?
> 
> Quick answer: Networking and disk I/O. Insane load on a 4 way SMP 
> machine. Check yourself. :)

a busy network server can easily have millions of timers pending. I once 
had to increase a server's 16 million tw timer sysctl limit ...

	Ingo
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