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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Kworker using 100% CPU"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76732#c17">Comment # 17</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Kworker using 100% CPU"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76732">bug 76732</a>
from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=76732#c16">comment #16</a>)
<span class="quote">> Samples: 121K of event 'cycles', Event count (approx.): 71741963089
> + 64.62% kworker/1:1 [kernel.kallsyms] [k] ioread32
> + 18.47% kworker/1:1 [kernel.kallsyms] [k] native_read_tsc
> + 13.71% kworker/1:1 [kernel.kallsyms] [k] delay_tsc
> + 2.31% swapper [kernel.kallsyms] [k] ioread32</span >
There was supposed to be a call graph... Perhaps you're using an older version
of perf? Or perhaps it really wants you to pass in -g for report? (Or you
didn't use -g when recording?)
Or maybe you're in the curses TUI and you have to select to expand? I forget
how it works :(</pre>
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