From mboxrd@z Thu Jan  1 00:00:00 1970
From: francis.giraldeau@usherbrooke.ca (Francis Giraldeau)
Date: Tue, 12 Apr 2011 18:05:34 -0400
Subject: [ltt-dev] Time in trace passes too slowly
Message-ID: <1302645934.27040.42.camel@zhukov>

Hi, 

In a trace, the time difference between two timestamps doesn't match the
time it should have elapsed. For example, when measuring the duration of
"sleep 1" in the trace, 0.358s is obtained. The real duration of the
sleep is indeed 1 second. The error seems proportional to a constant
factor. 

I get this behavior on a 32 bits Ubuntu with 2.6.35-24-lttng from the
PPA. I'm running the same version of kernel but configured with 64 bits
and durations are correct. 

I put a sample trace here:

http://secretaire.dorsal.polymtl.ca/~fgiraldeau/sleep-1x-1sec.tar.gz

Seems a bug to me, or maybe I'm doing something wrong?

Cheer, 

Francis