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[I've sent this mail aleready, but got an error from my MAILER-DAEMON. Perhaps ist was too large vor lkml, so I'm moving the oprofile output to a webserver] * Andrew Morton <akpm@osdl.org> wrote: > Stefan Foerster <stefan@stefan-foerster.de> wrote: > > * Andrew Morton <akpm@osdl.org> wrote: > > > Stefan Foerster <stefan@stefan-foerster.de> wrote: > > > A kernel profile would be needed to diagnose this. You could use > > > readprofile, but as it may be an interrupt problem, the NMI-based oprofile > > > output would be better. > > > > Is this procedure documented anywhere? [every information I needed] I did the following steps: opcontrol --setup --vmlinux=/usr/src/linux/vmlinux --event=RETIRED_INSNS:100000:0:1:1 Then I used your shell source: ~/shells/oprofileit dd if=/dev/zero of=test bs=1024 count=1048576 opreport -l /usr/src/linux/vmlinux > /tmp/1 opreport -ld -D /usr/src/linux/vmlinux > /tmp/2 During the dd, again the xmms playing a file from an tmpfs froze and even screen redrawing was very, very slow. The output of these commands kan be found at: http://home.in.tum.de/foerstes/oprofile-1 http://home.in.tum.de/foerstes/oprofile-2 Is this information useful in debugging my problem, or should I go and try again with readprofile or other tools? Ciao, Stefan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||
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