> Datum: 30/10/07 10:11 PM > Van: "Daniel Walker" > Aan: gerritbinnenmars@xxxxxxxxxx > CC: linux-rt-users@xxxxxxxxxxxxxxx > Onderwerp : Re: CONFIG_CRITICAL_IRQSOFF_TIMING > > On Tue, 2007-10-30 at 22:09 +0100, Gerrit Binnenmars wrote: > > > Datum: 30/10/07 10:02 PM > > > Van: "Daniel Walker" > > > Aan: gerritbinnenmars@xxxxxxxxxx > > > CC: linux-rt-users@xxxxxxxxxxxxxxx > > > Onderwerp : Re: CONFIG_CRITICAL_IRQSOFF_TIMING > > > > > > On Tue, 2007-10-30 at 21:52 +0100, Gerrit Binnenmars wrote: > > > > > > > CONFIG_LTT_PROBE_LOCKING=m > > > > # CONFIG_LTT_PROBE_STACK is not set > > > > > > I wonder which kernel your using? I don't recall LTT being part of real > > > time in the past .. What the architecture too ? > > > > Hello Daniel, > > I use version 2.6.22.1-rt4, see the following link for LTT compatibility > > http://ltt.polymtl.ca/svn/ltt/branches/poly/doc/developer/lttng-lttv-compatibility.html > > > > I have used LTT on both i386 an on a PowerPC (MPC8555) architecture. > > It is a great help in understanding real-time behaviour. > > Did you add LTT into your kernel on your own? > > Daniel > > > Daniel, I first applied the rt patchset and then the LTTng patch (http://ltt.polymtl.ca/lttng/patch-2.6.22.1-rt4-lttng-0.9.10.tar.gz). Then LTT can be selected in the Instrumentation part of the config file. further ltt-control is needed (http://ltt.polymtl.ca/lttng/ltt-control-0.43-10082007.tar.gz) The viewer is only working on i386 but that is not really a problem. So, I applied the available patches without doing anything special. Is LTT causing troubles with the preempt_max_latency options? Gerrit - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
