Re: [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00

From: Ingo Molnar
Date: Wed Jun 22 2005 - 19:17:25 EST

* William Weston <weston@xxxxxxxxx> wrote:

> > these are all the first type of latencies, which seem to be hardware
> > related. Could you try to boot the UP kernel, do you see these latencies
> > there too? (if yes then please post those too)
> On -50-11 UP, the ~200us idle is still showing up in the traces. This
> idle time, however, seems to be at random points within the trace.
> Some of the traces attached are nearly identical except for where the
> ~200us jump happens to fall. Hardware induced latency?

yes, very likely hardware (or system BIOS, e.g. SMM) induced.

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