Re: [lttng-dev] Problem in finding Jar file of LTTng for adding to Java project

Dear Alex, Thanks for your attention. I executed your commands step by step. While, again I received previous errors which are  [error] Cannot open any trace for reading.[error] opening trace "[path]/lttng-traces/auto-20171011-145947" for reading. [error] none of the specified trace p

Re: [lttng-dev] How to user perf probes and module tracepoints in lttng

Hi, 2017-10-11 17:10 GMT-04:00 avkumar : > > Perf probes: > How can we add the dynamic trace points created by perf probe into lttng? > When I add the perf probe as kprobe type I get missing tracepoint error, If I > add the perf probe as tracepoint , Lttng does not complain

[lttng-dev] How to user perf probes and module tracepoints in lttng

Perf probes: How can we add the dynamic trace points created by perf probe into lttng? When I add the perf probe as kprobe type I get missing tracepoint error, If I add the perf probe as tracepoint , Lttng does not complain but it does not collect any data when the tracepoint is hit. perf probe

Re: [lttng-dev] [PATCH lttng-tools] Fix: lttng-consumerd crash due to double free metadata stream

Hi, On Thu, Sep 28, 2017 at 04:57:42PM -0400, Jonathan Rajotte-Julien wrote: > Hi Liguang, > > Thanks for submitting the patch. > > On Wed, Sep 27, 2017 at 05:57:59PM +0800, Liguang Li wrote: > > When setup metadata failed, the exception handling function will free > > the metadata stream

Re: [lttng-dev] Babeltrace performance issue in live-reading mode

Hi, > > > I think the root cause is that the parsing and printing process is a bit > > slow. So i want to know if there > > > are any method to improve the performance of this process. > > > > A simple experiment would be to run a bounded workload > > to perform a quick timing evaluation of

Re: [lttng-dev] Problem in finding Jar file of LTTng for adding to Java project

ttng start $ java -cp /usr/share/java/lttng-ust-agent-jul.jar:. Hello $ lttng stop $ lttng view and I get the following output: Trace directory: /home/alexandre/lttng-traces/auto-20171011-102431 [10:24:49.326824061] (+?.?) calista lttng_jul:event: { cpu_id = 2 }, { msg = "Hello World, t

Re: [lttng-dev] Babeltrace performance issue in live-reading mode

Hi, On Thu, Sep 21, 2017 at 11:03 PM, Jonathan Rajotte Julien < jonathan.rajotte-jul...@efficios.com> wrote: > Hi, > > On 2017-09-21 05:34 AM, liguang li wrote: > > Hi, > > > > On Wed, Sep 20, 2017 at 10:58 PM, Jonathan Rajotte Julien < > jonathan.rajotte-jul...@efficios.com