From mboxrd@z Thu Jan 1 00:00:00 1970 From: milian.wolff@kdab.com (Milian Wolff) Date: Wed, 24 May 2017 18:00:47 +0200 Subject: [lttng-dev] tracing page_faults with lttng? Message-ID: <1807360.trHWC9KRqs@milian-kdab2> Hey all, when I trace with perf, I can see page_faults occurring. But when I do something like the following with lttng: lttng create lttng enable-channel kernel -k lttng enable-event -c kernel -k -a lttng start # trigger page faults lttng stop then I do not see any page faults in tracecompass/babeltrace. What do I need to do to see those too? I'm aware that lttng comes with its own set of tracepoints - i.e. it's not using the same tracepoints that perf knows about. But googling shows me e.g. this: https://lists.lttng.org/pipermail/lttng-dev/2013-April/019954.html https://lists.lttng.org/pipermail/lttng-dev/2016-May/026033.html Which sounds like the feature should be available in lttng too? I'm using the ArchLinux packages in AUR, i.e. version 2.9.2 of LTTng and kernel 4.10.13-1. Thanks -- Milian Wolff | milian.wolff at kdab.com | Software Engineer KDAB (Deutschland) GmbH&Co KG, a KDAB Group company Tel: +49-30-521325470 KDAB - The Qt Experts -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 3826 bytes Desc: not available URL: