linux-kernel - [RELEASE] LTTng 0.170 for kernel 2.6.31.6 (bugfix release, stress-test)

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Date:	Mon, 16 Nov 2009 13:44:01 -0500
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	ltt-dev@...ts.casi.polymtl.ca
Cc:	linux-kernel@...r.kernel.org
Subject: [RELEASE] LTTng 0.170 for kernel 2.6.31.6 (bugfix release,
	stress-test)

Hi,

I just released lttng 0.170 which fixes concurrency problems between:

cpu hotplug
trace start/stop
marker arm/disarm

All users using LTTng since 0.165 (where the refactoring has been done)
are strongly encouraged to upgrade.

The stress-tests I have done are (in parallel):

#cpu hotplug
for b in $(seq 1 1000); do
  for a in $(find /sys/devices/system/cpu |grep online); do
    echo 0 > $a;
  done;
  for a in $(find /sys/devices/system/cpu |grep online); do
    echo 1 > $a;
  done;
done

#ltt-armall
for a in $(seq 1 1000); do
  /home/compudj/local/bin/ltt-armall;
  /home/compudj/local/bin/ltt-disarmall;
done

#trace creation/removal
for a in $(seq 1 1000); do
  rm -fr /tmp/trace2;
  /home/compudj/local/bin/lttctl -C -w /tmp/trace2 trace2;
  /home/compudj/local/bin/lttctl -D trace2;
done

Works fine now. I'll leave the test run longer, but about 10 minutes of
these running in parallel is fine now.

Mathieu

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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