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Re: [PerfSuite-users] psrun profile doesn't show any sampling point
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From: Rick K. <rk...@il...> - 2009-07-22 12:30:36
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Cheng, Thanks for the followup and further info. I'm glad to hear that you are getting better results with the itimer.xml configuration versus profil.xml. I have seen problems with profil.xml before, which uses the C library profil() functionality, but they had seemed to be isolated to Itanium platforms. Regardless, this is something we will note and see if we can reproduce. Thanks again for the info - I am copying the SourceForge list for archival/status purposes. Rick ----- Original Message ----- From: "Cheng Liao" <cyl...@gm...> To: "Rick Kufrin" <rk...@il...> Sent: Tuesday, July 21, 2009 11:30:08 PM GMT -06:00 US/Canada Central Subject: Re: [PerfSuite-users] psrun profile doesn't show any sampling point Rick, Thought I would follow up. Running longer jobs helps, since not all CPU time would be reported by profiling samples. However, my real problem is I need to use itimer.xml instead of profil.xml for psrun. For some reason profil.xml would show empty. Maybe I have messed up my build somewhere? Now, everything looks great, except sometime a significant chuck of the sampling points cannot find the function names and would show ?? on the output. Thanks again, Cheng On Mon, Jul 20, 2009 at 1:28 PM, Cheng Liao < cyl...@gm... > wrote: Hi Rick, Thanks for your quick reply. Indeed the sample output I showed was from a Nehalem machine. However, I saw the same problem on some wolfdale and harpertown systems too. So far, I have tried only a 0 second and a 6 second jobs. Will make some longer runs. Cheng On Mon, Jul 20, 2009 at 12:50 PM, Rick Kufrin < rk...@il... > wrote: Cheng, There are two issues that I can think of that you might be experiencing. The first is simply that the program may not run long enough to generate profiling samples. However, I am also wondering if (based on the processor brand string listed in the output) if you are working with an Intel Nehalem CPU. If so, there are known problems with the most recent release of PerfSuite on that processor. We have finished adding the support for that system, but have not yet placed a new software release on SourceForge or at NCSA. We hope to do so in the very near future, though. Sorry for the difficulties, please let me know if you also suspect this may be what is affecting you. Rick Cheng Liao wrote: I just installed perfsuite on some linux x86_64 machines (only one with papi and perfctr). However, even though 'make -s check' outputs looked fine, all the psprocess outputs would be 'empty' and show no profile timing info. Is this something that can be easily fixed? Thanks, Cheng PerfSuite Hardware Performance Summary Report Version : 1.0 Created : Mon Jul 20 11:20:26 AM PDT 2009 Generator : psprocess 0.3 XML Source : ls.15381.em64td.xml Execution Information ============================================================================================ Collector : libpshwpc Date : Sat Jul 18 17:31:54 2009 Host : em64td User : cliao Command : ls Processor and System Information ============================================================================================ Node CPUs : 8 Vendor : Intel Family : Pentium Pro (P6) Brand : Intel(R) Xeon(R) CPU X5570 @ 2.93GHz CPU Revision : 4 Clock (MHz) : 2933.589 Memory (MB) : 24096.66 Pagesize (KB) : 4 Cache Information ============================================================================================ Cache levels : 0 Profile Information ============================================================================================ Class : profil Version : 2.5 Event : milliseconds Period : 10 Samples : 0 Domain : user Run Time : 0.00 (seconds) Min Self % : (all) Module Summary -------------------------------------------------------------------------------- Samples Self % Total % Module File Summary -------------------------------------------------------------------------------- Samples Self % Total % File Function Summary -------------------------------------------------------------------------------- Samples Self % Total % Function Function:File:Line Summary -------------------------------------------------------------------------------- Samples Self % Total % Function:File:Line ------------------------------------------------------------------------ ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ------------------------------------------------------------------------ _______________________________________________ PerfSuite-users mailing list Per...@li... https://lists.sourceforge.net/lists/listinfo/perfsuite-users |
