From mboxrd@z Thu Jan 1 00:00:00 1970 From: cpthk@hotmail.com (Jeffrey Chen) Date: Mon, 22 Jun 2015 15:03:44 -0700 Subject: [lttng-dev] LTTng event loglevel In-Reply-To: <55887C23.8010306@voxpopuli.im> References: , <55887C23.8010306@voxpopuli.im> Message-ID: Thanks for your answer. I tried to use the TRACEPOINT_LOGLEVEL macro, but I was not able to make it working. I have my macro immediately follow my TRACE_EVENT macro "TRACEPOINT_LOGLEVEL(hello_world,my_first_tracepoint,TRACE_WARNING)" I enabled the event with the --loglevel TRACE_WARNING parameter. When I run my code, and I do `lttng list --userspace`, I still get "hello_world:my_first_tracepoint (loglevel: TRACE_DEBUG_LINE (13)) (type: tracepoint)" It looks like my code does not set the loglevel correctly, so it is still using the default loglevel. Am I doing anything wrong? Thanks. > Date: Mon, 22 Jun 2015 17:20:35 -0400 > From: alexmonthy@voxpopuli.im > To: cpthk at hotmail.com > CC: lttng-dev at lists.lttng.org > Subject: Re: [lttng-dev] LTTng event loglevel > > Hi, > > On 2015-06-22 05:06 PM, Jeffrey Chen wrote: > > Hi: > > > > I am reading the LTTng and I am confused about the loglevel in the document. The document talked about it could assign a loglevel to each event. (http://lttng.org/docs/#doc-assigning-log-levels) > > This part refers to when you define your own tracepoints in your pogram, > using the TRACEPOINT_EVENT macro. > > > But, later in the document, it says all events from LTTng are traced as loglevel TRACE_DEBUG_FUNCTION. (http://lttng.org/docs/#doc-liblttng%E2%80%91ust%E2%80%91cyg%E2%80%91profile) > > That part however, refers to using the liblttng-ust-cyg-profile library, > to automatically instrument function entries and exits. This library > implements the callbacks expected by cyg-profile, and puts the > information into UST tracepoints. Since it's this > liblttng-ust-cyg-profile library that "defines" the tracepoints here, > they are stuck at the log level specified in their definition, which is > TRACE_DEBUG_FUNCTION in this case. > > > Hope this helps, > Alexandre > -------------- next part -------------- An HTML attachment was scrubbed... URL: