From: Wolfgang Grandegger <wg@grandegger.com>
To: RT <linux-rt-users@vger.kernel.org>
Subject: High latencies with linux-2.6.25.4-rt6 on MPC5200
Date: Wed, 18 Jun 2008 10:07:05 +0200 [thread overview]
Message-ID: <4858C229.2060509@grandegger.com> (raw)
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.
next reply other threads:[~2008-06-18 8:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-18 8:07 Wolfgang Grandegger [this message]
2008-06-19 13:14 ` High latencies with linux-2.6.25.4-rt6 on MPC5200 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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