12 lines
410 B
Nix
12 lines
410 B
Nix
# Script that collects perf timing for the execution of a command and writes a
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# flamegraph to stdout
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{ pkgs, ... }:
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pkgs.writeShellScriptBin "perf-flamegraph" ''
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set -euo pipefail
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${pkgs.linuxPackages.perf}/bin/perf record -g --call-graph dwarf -F max "$@"
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${pkgs.linuxPackages.perf}/bin/perf script \
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| ${pkgs.flamegraph}/bin/stackcollapse-perf.pl \
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| ${pkgs.flamegraph}/bin/flamegraph.pl
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''
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