[lkml]   [1999]   [Mar]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [patch] kstat change to see how much Linux SMP really scale well

On Sat, 13 Mar 1999, Andi Kleen wrote:

> > this is a non-issue, really. It simply does not happen. I've profiled a
> > slow and old dual-P100 for hours under heavy load and i never got a lost
> > SMP timer interrupt.
> I think it depends on the drivers. I assume your old P100 didn't have a
> polling SCSI controller that disabled local interrupts with the
> iorequest spinlock for ages.

actually it had such a beast, the biggest delay i saw was 1-2 msecs,
typically it was 100-500 usecs.

-- mingo

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:50    [W:0.055 / U:0.564 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site