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From: Gautam Thaker <gautam.h.thaker@lmco.com>
To: linux-rt-users@vger.kernel.org
Cc: "Gautam H. Thaker - LM ATL" <gautam.h.thaker@lmco.com>
Subject: 2.6.26.6-rt11  nanosleep() does have accurate behavior
Date: Fri, 07 Nov 2008 10:56:02 -0500	[thread overview]
Message-ID: <49146512.4020107@atl.lmco.com> (raw)

I recently started to study how nanosleep() behaves under 2.6.26.6-rt11 compiled in in FULL PREEMPT, uniprocessor mode. 
  I find that between 2.6.20-rt8 and this new kernel something has changed and nanosleep() is back to its old behavior 
or sleeping for next higher number of msec rather than carefully following the "y=x" line.

I don't follow the RT world closely enough, but is this a regression or an expected change in behavior? The link below 
show the results very clearly.

http://www.atl.external.lmco.com/projects/QoS/documents/nanosleep_1.png

Gautam

             reply	other threads:[~2008-11-07 16:03 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-07 15:56 Gautam Thaker [this message]
2008-11-07 19:17 ` 2.6.26.6-rt11 nanosleep() does have accurate behavior Leon Woestenberg

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