From: Shilpi A. <sh...@ca...> - 2003-06-06 02:48:02
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Hi!! I installed oprofile on linux version 2.4.18. first time i ran it i could see some output but after that i am always getting message no samples files found (try running opcontrol --dump ?) This message i am getting after running opcontrol --dump. Can anyone please help to resolve the problem? Thanks Shilpi Shilpi Agarwal Graduate Student Dept of Electrical Engineering University of Wisconsin Madison-53706 phone:608-233-3714 |
From: William C. <wc...@nc...> - 2003-06-06 03:10:31
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What version of oprofile are you running? How was oprofile built? Some things to check: 1) Is the daemon starting up? Need to have the "--start" on the opcontrol line to actually start the daemon. 2) Is there an oprofile module installed after the opcontrol command? Check with /sbin/lsmod. 3) Is the module identifying the processor correctly? 'op_help' should list the processor. 4) Is there an daemon running? Look for a oprofiled in the processes. 5) Is there anything in the /var/lib/oprofile/oprofiled.log? 6) Are you running the version of oprofile that you expect? I have encountered problems where I have an oprofile rpm installed and another oprofile built from tarball in /usr/local/bin. -Will Shilpi Agarwal wrote: > Hi!! > > I installed oprofile on linux version 2.4.18. first time i ran it i could see > some output but after that i am always getting message > no samples files found (try running opcontrol --dump ?) > > This message i am getting after running opcontrol --dump. > > Can anyone please help to resolve the problem? > > Thanks > Shilpi > Shilpi Agarwal > Graduate Student > Dept of Electrical Engineering > University of Wisconsin > Madison-53706 > phone:608-233-3714 > > > ------------------------------------------------------- > This SF.net email is sponsored by: Etnus, makers of TotalView, The best > thread debugger on the planet. Designed with thread debugging features > you've never dreamed of, try TotalView 6 free at www.etnus.com. > _______________________________________________ > oprofile-list mailing list > opr...@li... > https://lists.sourceforge.net/lists/listinfo/oprofile-list > |
From: Erich N. <na...@wa...> - 2003-11-02 03:30:31
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I am running into this problem as well, and didn't find anything in the archives. My setup is RH 2.4.20-8smp, with oprofile included as a module, and the oprofile-0.7cvs-0.20030829.6 rpm from Rawhide. If I try running opcontrol -dump opcontrol just hangs forever. > 1) Is the daemon starting up? Need to have the "--start" on the > opcontrol line to actually start the daemon. Yes, here's what it says: Using default event: GLOBAL_POWER_EVENTS:842596:1:1:1 Using log file /var/lib/oprofile/oprofiled.log Daemon started. Profiler running. > 2) Is there an oprofile module installed after the opcontrol command? > Check with /sbin/lsmod. Yes. > 3) Is the module identifying the processor correctly? 'op_help' should > list the processor. Yes, type "P4 / Xeon" > 4) Is there an daemon running? Look for a oprofiled in the processes. Yep. > 5) Is there anything in the /var/lib/oprofile/oprofiled.log? Here's what's in oprofiled.log: Sat Nov 1 19:52:22 2003 Nr. image struct: 25 Nr. kernel samples: 0 Nr. modules samples: 0 Nr. modules samples lost: 0 Nr. lost samples (no kernel/user): 34190 Nr. lost userspace samples (no mm/dcookie): 0 Nr. lost userspace samples (nil image): 0 Nr. sample dumps: 5 Nr. samples total: 0 Nr. incomplete code structs: 0 That lost samples one looks suspicious but I don't know what to make of it. I'm just trying baby steps, i.e. doing readprofile like activities that include kernel modules and applications. > 6) Are you running the version of oprofile that you expect? I have > encountered problems where I have an oprofile rpm installed and another > oprofile built from tarball in /usr/local/bin. I haven't built an oprofile, just used the one from the RPM. Any help appreciated. Thanks, -Erich |
From: John L. <le...@mo...> - 2003-11-02 23:58:43
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On Sat, Nov 01, 2003 at 08:05:14PM -0500, Erich Nahum wrote: > archives. My setup is RH 2.4.20-8smp, with oprofile included as a ^^^^^^^^^^^^^^ Please read the FAQ. We cannot provide help until you stop using a red hat kernel and a red hat oprofile. regards john -- Khendon's Law: If the same point is made twice by the same person, the thread is over. |
From: William C. <wc...@nc...> - 2003-11-03 00:21:29
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Erich Nahum wrote: > > I am running into this problem as well, and didn't find anything in the > archives. My setup is RH 2.4.20-8smp, with oprofile included as a > module, and the oprofile-0.7cvs-0.20030829.6 rpm from Rawhide. If I > try running opcontrol -dump opcontrol just hangs forever. You should not mix Linux kernels and OProfile RPMs from different distributions. Oprofile is tied fairly closely to the kernel. The interface between the kernel and user-space OProfile has been evolving. Taking a kernel RPM from one distribution and OProfile RPM from another is likely to lead to trouble, e.g. the RHL 8 kernel with oprofile-0.7cvs-0.20030829.6 rpm will definitely not work. The 2.4.20-8smp kernel is not the the matching Rawhide kernel. Please use the matching Rawhide kernel. -Will |
From: Erich N. <na...@wa...> - 2003-11-03 03:10:03
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William Cohen writes: > Erich Nahum wrote: > > > > I am running into this problem as well, and didn't find anything in the > > archives. My setup is RH 2.4.20-8smp, with oprofile included as a > > module, and the oprofile-0.7cvs-0.20030829.6 rpm from Rawhide. If I > > try running opcontrol -dump opcontrol just hangs forever. > > You should not mix Linux kernels and OProfile RPMs from different > distributions. Oprofile is tied fairly closely to the kernel. The > interface between the kernel and user-space OProfile has been evolving. > Taking a kernel RPM from one distribution and OProfile RPM from another > is likely to lead to trouble, e.g. the RHL 8 kernel with > oprofile-0.7cvs-0.20030829.6 rpm will definitely not work. The > 2.4.20-8smp kernel is not the the matching Rawhide kernel. Please use > the matching Rawhide kernel. OK, thanks. I was trying to stay with a specific RH kernel, for compatibility with a specific third party driver that requires it, but it seems I'll have to switch to a stock kernel and oprofile release (as John Levon mentioned). I did read the FAQ, but thought since oprofile was running that I had gotten past the major hurdle. -Erich -- Erich M. Nahum IBM T.J. Watson Research Center Networking Research P.O. Box 704 na...@wa... Yorktown Heights NY 10598 |