lucperkins · September 21, 2022 16:12
diff --git a/qemu-flamegraphs.bash b/qemu-flamegraphs.bash
 perf script | stackcollapse-perf.pl |  # taken from the flamegraph page linked above
  grep ^qemu | # We're only interested in the qemu process
  awk '/unknown/ { gsub("(\\[unknown];){1,}", "[unknown...];", $0) } { print }' | # Make the graph a lot less tall by collapsing multiple consecutive unknown stack frames together
  flamegraph.pl > flamegraph.svg # and generate a flamegraph
	perf script \| stackcollapse-perf.pl \| # taken from the flamegraph page linked above
	grep ^qemu \| # We're only interested in the qemu process
	awk '/unknown/ { gsub("(\\[unknown];){1,}", "[unknown...];", $0) } { print }' \| # Make the graph a lot less tall by collapsing multiple consecutive unknown stack frames together
	flamegraph.pl > flamegraph.svg # and generate a flamegraph