20 Jun
2006
20 Jun
'06
8:28 p.m.
On Wed, 2006-06-21 at 00:21 +0200, Pieter Palmers wrote:
Hi all,
This weekend I've discovered a (serious) kernel scheduling latency issue
with the current ieee1394 kernel drivers. Before I submit something
about this to lkml, I'd like some more tests. I've been able to
reproduce this on two different machines, so I suspect that this is a
more general problem.
The problem summary is that running ieee1394 ISO traffic can cause
scheduling latency spikes up to 1ms, even for RT threads with higher
priority.
Latency tracer output please?
Use 2.6.16 with this patch:
http://people.redhat.com/mingo/latency-tracing-patches/latency-tracing-v2.6…
Lee