Hello People, I am using LTTng to get around a scheduling and priority inheritance problem that we are observing on our system (powerpc e500v2 dual core, linux 2.6.34). However, I need map timestamps for events as seen in Lttng trace, kernel and application (I am using TSC divided by time base freq for application). I see that even though stop tracing (lttctl -D ) at 601.xxxxxx (/var/log/kernel ) Nov 21 16:26:13 XRX9C93E4059FFD kernel: [ 601.695548] LTT: 284 events written in channel metadata (cpu 1, index 0) Nov 21 16:26:13 XRX9C93E4059FFD kernel: [ 601.710868] LTT: 40 events written in channel module_state (cpu 1, index 0) ............................................... Nov 21 16:26:13 XRX9C93E4059FFD kernel: [ 601.710978] LTT: 32 events written in channel softirq_state (cpu 1, index 0)
When I look dump the trace using lttv, I can see events that are timestamped upto 670.xxxxxxxx. I am wondering if this is due some timing offset? If yes, how could I match them? My Setup ltt-control-0.89-05122011 lttv-0.12.36-18112010 linux-2.6.32 with pre-empt RT patch Any pointers will be greatly appreciated. Thanks Abhi _______________________________________________ ltt-dev mailing list [email protected] http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
