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Diffstat (limited to '')
-rwxr-xr-x | tools/perf-flamegraph-pid/perf-flamegraph-pid.sh | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/perf-flamegraph-pid/perf-flamegraph-pid.sh b/tools/perf-flamegraph-pid/perf-flamegraph-pid.sh new file mode 100755 index 0000000..141ceec --- /dev/null +++ b/tools/perf-flamegraph-pid/perf-flamegraph-pid.sh @@ -0,0 +1,20 @@ +#!/usr/bin/env bash + +set -euo pipefail + +OUT_DIR="${HOME}/workspace/debug/flamegraph" +OUT_DATA="${OUT_DIR}/$(date +%y%m%d-%H%M%S).data" +OUT_SVG="${OUT_DIR}/$(date +%y%m%d-%H%M%S).svg" + +mkdir -p "${OUT_DIR}" + +# record the data with perf. We need to run this with sudo to get all +# the privileges we need. +sudo perf record -g --call-graph dwarf --freq max --output "${OUT_DATA}" "$@" + +# give me ownership of the file +sudo chown "${USER}" "${OUT_DATA}" + +perf script --input "${OUT_DATA}" | \ + stackcollapse-perf.pl | \ + flamegraph.pl > "${OUT_SVG}" |