1 files changed, 37 insertions, 0 deletions
diff --git a/bench.sh b/bench.sh
new file mode 100755
index 000000000..c6a20a7e3
--- /dev/null
+++ b/bench.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+# allow user to override go executable by running as GOEXE=xxx make ...
+GOEXE="${GOEXE-go}"
+
+# Convenience script to
+# - For a given branch
+# - Run  benchmark tests for a given package
+# - Do the same for master
+# - then compare the two runs with benchcmp
+
+benchFilter=".*"
+
+if (( $# < 2 ));
+  then
+    echo "USAGE: ./bench.sh <git-branch> <package-to-bench> (and <benchmark filter> (regexp, optional))"
+    exit 1
+fi
+
+
+
+if [ $# -eq 3 ]; then
+  benchFilter=$3
+fi
+
+
+BRANCH=$1
+PACKAGE=$2
+
+git checkout $BRANCH
+"${GOEXE}" test -test.run=NONE -bench="$benchFilter" -test.benchmem=true ./$PACKAGE > /tmp/bench-$PACKAGE-$BRANCH.txt
+
+git checkout master
+"${GOEXE}" test -test.run=NONE -bench="$benchFilter" -test.benchmem=true ./$PACKAGE > /tmp/bench-$PACKAGE-master.txt
+
+
+benchcmp /tmp/bench-$PACKAGE-master.txt /tmp/bench-$PACKAGE-$BRANCH.txt