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<p>Hi Luka,<br>
</p>
<p>Which CPU and OS are you running? Most linux distros seem to have
an old version of libpfm - I've had more luck (better CPU support)
by using the trunk version from
<a class="moz-txt-link-freetext" href="https://sourceforge.net/p/perfmon2/libpfm4/ci/master/tree/">https://sourceforge.net/p/perfmon2/libpfm4/ci/master/tree/</a></p>
<p>Also, are running the tool with sudo?<br>
</p>
Simon.<br>
<br>
<div class="moz-cite-prefix">On 14/08/2018 16:28, Luka Ercegovcevic
via llvm-dev wrote:<br>
</div>
<blockquote type="cite"
cite="mid:3315-5b72f500-3-172feea0@222762487">
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Hi everyone,<br>
<br>
Can someone help me with running llvm-exegesis tool on x86_64? I
saw that I need libpfm library, but I'm still getting segmentation
fault when I try to run the tool. Is there anything else I need to
do (build llvm on some specific way) ?<br>
This is how I tried to run this tool: llvm-exegesis -mode=latency
-opcode-name=ADD64rr<br>
<br>
Thanks,<br>
Luka
<br>
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