<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/63077>63077</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            BOLT and LBR collection on AMD Epyc Milan (zen3)
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          ss7pro
      </td>
    </tr>
</table>

<pre>
    I am trying to get BOLT running on zen3 but I'm running into the issues while collecting performance profile. I'm unable to collect data using -e events and needs to revert to -e cpu/branch/brs.

```
tomasz@m1:~$ sudo perf record -b -e cycles:u  -a sleep 1

Error:

The sys_perf_event_open() syscall returned with 22 (Invalid argument) for event (cycles:u).

/bin/dmesg | grep -i perf may provide additional information.

tomasz@m1:~$ sudo perf record -b -e cpu/branch-brs/  -c 1000037  -a sleep 1

[ perf record: Woken up 1 times to write data ]

[ perf record: Captured and wrote 1.898 MB perf.data (518 samples) ]


tomasz@m1:~$ 
```

@aaupov 
</pre>
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