Yes, this is possible - I presume you want to sample counters on an x86 box. You can look up a few examples at http://perfmon2.sourceforge.net/pfmon_usersguide.html
-pradeep On Wed, Jul 6, 2011 at 11:05 PM, Ying Zhang <yzha...@tigers.lsu.edu> wrote: > Hi all, > I am a newbie to perfmon (actually I have no experience in using this > tool). > I am working on a project using hardware performance monitoring counters > to analyze applications running on an Intel processor. I have not used any > tools such as Vtune or perfmon so far, but with my own program. In the > current implementation, the counter values are read through a file under > /proc (thus I need to create a proc_entry before the sampling and read the > values to this file during execution), and the samplings are implemented by > inserting a task into the delayed work queue. By doing this, I am able to > read the performance counter values at fixed time intervals, say, once a > second. > However, I want to read the counters in another way. Namely, rather than > collect those counters every second, I would like to read them after every > million instructions are executed. That is, read the counter values when 1M, > 2M, 3M....instructions are executed. I have no clue on this change. > Therefore, I am wondering if perfmon provides an easy approach to carry > out this kind of measurement (reading counters when 1M, 2M, 3M... > instructions are retired). If the answer is positive, I'll switch to use > perfmon and hope that anyone can tell me how to do that. > Any suggestions will be appreciated. > By the way, I am using Fedora 13 with kernel 2.6.33. > Thanks, > Ying Zhang > ------------------------------------------------------------------------------ > All of the data generated in your IT infrastructure is seriously valuable. > Why? It contains a definitive record of application performance, security > threats, fraudulent activity, and more. Splunk takes this data and makes > sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-d2d-c2 > _______________________________________________ > perfmon2-devel mailing list > perfmon2-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/perfmon2-devel > > ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
