Mathieu, I am viewing the results in lttv-gui, I have version 0.12.20. Are you asking me to run it in "lttv"? I'm not sure how to run that.
There are 2 views in lttv-gui, which seem to contradict each other. In the "event viewer" the COREID field is the same for all events associated with all threads created by the application. However, in the "control flow viewer" it shows several threads/processes as concurrently in the "run" state. Which I assume can only occur if the threads are on different cores. I'm not sure how to interpret the "resource viewer", but it appears to have a lot of activity on all cores during the execution of the app. This would tend to confirm that the threads are spread across the cores, as expected. Thanks, Russ -----Original Message----- From: Mathieu Desnoyers [mailto:[email protected]] Sent: Wednesday, October 13, 2010 3:51 PM To: Klein, Russell Cc: [email protected] Subject: Re: [ltt-dev] LTTng and multi-core * Klein, Russell ([email protected]) wrote: > An additional data point on the message forwarded by Francois > (http://lttng.org/pipermail/ltt-dev/2010-October/003369.html) : > > > > I added the function sched_getcpu() to the application, so I could see > the core id for each thread as it was launched. The core-id as reported > by the sched_getcpu does *not* match the values in the CPUID field in > the event viewer. It appears that the values in the event viewer are > incorrect. Can you try viewing your trace with the LTTV viewer and compare ? It's available on the http://lttng.org website. Thanks, Mathieu -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com _______________________________________________ ltt-dev mailing list [email protected] http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
