#!/usr/bin/env bash
# This script runs the programs in perf/ with wasm-profiler instrumentation
# and dumps flamegraphs and an index.html in _profile.
#
# It expect on the path:
# moc drun wasm-profiler-instrument wasm-profiler-postproc flamegraph
# (Should all be present in the nix shell)
set -e
cd "$(dirname "${BASH_SOURCE[0]}")"
if ! [ -d perf ]; then
echo "Did not find perf/"
exit 1
fi
rm -rf _profile
mkdir _profile
rm -rf _profile_build
mkdir _profile_build
cat > _profile/index.html <<__END__
Motoko prof flamegraphs
Motoko prof flamegraphs
__END__
for file in perf/*.mo; do
base="$(basename "$file" .mo)"
cat >> _profile/index.html <<__END__
$base.mo
__END__
done
cat >> _profile/index.html <<__END__
__END__
for file in perf/*.mo; do
base="$(basename "$file" .mo)"
echo "Profiling $base..."
moc --compacting-gc --force-gc -g "$file" -o "_profile_build/$base.wasm"
wasm-profiler-instrument --ic-system-api -i "_profile_build/$base.wasm" -o "_profile_build/$base.instrumented.wasm"
# qr.mo takes far too long with profiling instrumentation, so limit runtime
timeout 20s ./drun-wrapper.sh "_profile_build/$base.instrumented.wasm" "$file" |&
wasm-profiler-postproc flamegraph "_profile_build/$base.instrumented.wasm" \
> "_profile_build/$base.flamegraph"
flamegraph --hash --title "$base.mo" \
< "_profile_build/$base.flamegraph" > "_profile/$base.svg"
flamegraph --hash --title "$base.mo (reverse)" --reverse \
< "_profile_build/$base.flamegraph" > "_profile/$base-reverse.svg"
done