Re: Latency data - 2.6.14-rc3-rt13

From: Ingo Molnar
Date: Tue Oct 11 2005 - 01:15:16 EST

* Mark Knecht <markknecht@xxxxxxxxx> wrote:

> Anyway, these latencies seem understood at this point. They are just
> the timer that you set in the kernel hacking section. No big deal.
> However, none of the messages yet give any clues (that I understand)
> as to the cause of the timing misses I'm seeing with 2.6.14-rc3-rt13.
> I shall look into a 2.6.14-rc4-rtX tomorrow.

do you have 64-bit userspace too? If you have 32-bit userspace then
could you try running the x86 kernel? Generally the 64-bit kernel has
less mature debugging options in the -rt tree: e.g. latency tracing
itself doesnt work (due to gcc silliness).

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