2023-flamegraphs/2100-perf.html

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   7 {
   8   document.getElementById(id1).style.backgroundColor="yellow";
   9   document.getElementById(id2).style.backgroundColor="yellow";
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  17
  18 <h1>Whole system performance analysis</h1>
  19
  20 <pre>
  21 sudo perf record <span id="span_a" onmouseover="highlight(this.id, 'para_a')" onmouseout="bye(this.id, 'para_a')">-a</span> <span id="span_g" onmouseover="highlight(this.id, 'para_g')" onmouseout="bye(this.id, 'para_g')">-g</span> -- \
  22      nbdkit -U - null 1G --run 'export uri; fio nbd.fio'
  23 </pre>
  24
  25 <p id="para_a">
  26 -a &rarr; record the whole system
  27 </p>
  28
  29 <p id="para_g">
  30 -g &rarr; use frame pointers
  31 </p>