From 32f4cb5cbba313b7af2fce46139c04d9469cb72a Mon Sep 17 00:00:00 2001
From: Kleidi Bujari <mail@4kb.net>
Date: Fri, 24 Jan 2025 12:14:23 -0500
Subject: 25-jan sprint

---
 mod/tools/perf-flamegraph.nix | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 mod/tools/perf-flamegraph.nix

(limited to 'mod/tools/perf-flamegraph.nix')

diff --git a/mod/tools/perf-flamegraph.nix b/mod/tools/perf-flamegraph.nix
new file mode 100644
index 0000000..b472b74
--- /dev/null
+++ b/mod/tools/perf-flamegraph.nix
@@ -0,0 +1,12 @@
+# Script that collects perf timing for the execution of a command and writes a
+# flamegraph to stdout
+{ pkgs, ... }:
+
+pkgs.writeShellScriptBin "perf-flamegraph" ''
+  set -euo pipefail
+
+  ${pkgs.linuxPackages.perf}/bin/perf record -g --call-graph dwarf -F max "$@"
+  ${pkgs.linuxPackages.perf}/bin/perf script \
+    | ${pkgs.flamegraph}/bin/stackcollapse-perf.pl \
+    | ${pkgs.flamegraph}/bin/flamegraph.pl
+''
-- 
cgit v1.3.1