On Thu, 2005-08-25 at 18:15 -0700, Daniel Walker wrote:
> On Fri, 2005-08-26 at 02:22 +0200, Thomas Gleixner wrote:
> > On Thu, 2005-08-25 at 16:29 -0700, Daniel Walker wrote:
> > > Devastating latency on a 3Ghz xeon .. Maybe the raw_spinlock in the
> > > timer base is creating a unbounded latency?
> >
> > The lock is only held for really short periods. The only possible long
> > period would be migration of timers from a dead hotplug cpu to another.
> > I guess thats not the case.
> >
> > Do you have HIGH_RES_TIMERS enabled ?
>
> No. The cascade has a very long worst case.
You mean the cascading from the outer to the inner wheels ? That should
only happen with tons of active timers.
tglx
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
|
|