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* High latencies with linux-2.6.25.4-rt6 on MPC5200
@ 2008-06-18  8:07 Wolfgang Grandegger
  2008-06-19 13:14 ` Luotao Fu
  0 siblings, 1 reply; 9+ messages in thread
From: Wolfgang Grandegger @ 2008-06-18  8:07 UTC (permalink / raw)
  To: RT

Hello,

I currently re-doing latency measurement with my TQM5200 board under 
Linux 2.6.25. With 2.6.24-rt1 "cyclictest -n -p80 -i1000 -t1" reported a 
maximum latency of 170us. With 2.6.25.4-rt5 I'm unable to reproduce such 
reasonable latencies. cyclictest shows quickly latencies up to 600 us. 
What has changed in the meantime? Any ideas how to get better latencies?

Wolfgang.

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2008-06-30 17:34 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-06-18  8:07 High latencies with linux-2.6.25.4-rt6 on MPC5200 Wolfgang Grandegger
2008-06-19 13:14 ` Luotao Fu
2008-06-19 14:04   ` Wolfgang Grandegger
2008-06-27 14:32     ` Luotao Fu
2008-06-29 20:31       ` Wolfgang Grandegger
2008-06-30  8:38         ` Luotao Fu
2008-06-30  9:03           ` Leon Woestenberg
2008-06-30  9:17             ` Luotao Fu
2008-06-30 17:34       ` Wolfgang Grandegger

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