unikernel/duniverse/dune_/bench/perf.sh

@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+
+# Run this script simply as ./bench/perf.sh from the root directory.
+
+set -e
+
+TEST_REPO=https://github.com/ocaml-dune/dune-bench
+TEST_COMMIT=b6bfaf2974ec8ee1eea92c4316ec37b9966322e3
+
+# Some alternative benchmarks:
+
+# TEST_REPO=https://github.com/ocaml/dune
+# TEST_COMMIT=002edc11f4e0a57f11d5226cb2497c8b406027b5
+
+# TEST_REPO=https://github.com/avsm/platform
+# TEST_COMMIT=b254e3c6b60f3c0c09dfdcde92eb1abdc267fa1c
+
+dune() {
+  TIMEFORMAT=$'real %Rs\nuser %Us\nsys  %Ss\n'; time ../_build/default/bin/main.exe "$@" > /dev/null 2>&1
+}
+
+setup_test() {
+  mkdir -p _perf
+
+  cd _perf
+  if [ ! -f README.md ]; then
+    echo "Cloning $TEST_REPO..."
+    wget $TEST_REPO/archive/$TEST_COMMIT.tar.gz
+    tar -xzf $TEST_COMMIT.tar.gz --strip-components=1
+  fi
+  cd ..
+}
+
+pad () {
+  while IFS='' read -r x; do printf "%-$1s\n" "$x"; done
+}
+
+run_test() {
+  echo "Building Dune..."
+  # [make release] is used for bootstrapping, but the real binary to benchmark is
+  # then produced by a separate dune invocation.
+  # This is done mainly because [make release] won't rebuild dune if it's stale.
+  make release > /dev/null
+  ./dune.exe build _build/default/bin/main.exe
+
+  cd _perf
+  rm -rf _build
+
+  echo "Running full build..."
+  dune build --release --cache=disabled 2>> $1
+
+  echo "Running zero build..."
+  dune build --release --cache=disabled 2>> $1
+
+  cd ..
+}
+
+setup_test
+CURRENT_BRANCH=$(git branch | sed -n -e 's/^\* \(.*\)/\1/p')
+
+rm -f _perf/rows _perf/current _perf/main
+
+echo "            " >> _perf/rows
+echo "            " >> _perf/rows
+echo "           |" >> _perf/rows
+echo "Full build |" >> _perf/rows
+echo "           |" >> _perf/rows
+echo "            " >> _perf/rows
+echo "           |" >> _perf/rows
+echo "Zero build |" >> _perf/rows
+echo "           |" >> _perf/rows
+
+echo "Current branch" >> _perf/current
+echo "==============" >> _perf/current
+echo "Testing the current branch ($CURRENT_BRANCH)"
+run_test current
+
+echo " Main branch " >> _perf/main
+echo "=============" >> _perf/main
+git checkout main
+echo "Testing main"
+run_test main
+
+git checkout $CURRENT_BRANCH
+
+echo ""
+echo "Summary for building $TEST_REPO:"
+echo ""
+
+paste -d ' ' <(pad 10 < _perf/rows) <(pad 14 < _perf/current) _perf/main