enso/tools/build-performance/bench-build.sh
Kaz Wesley 8a50e8f930
Faster dev builds; tooling for measuring build times and app performance. (#3491)
- Change dev profile settings. Improves build performance; will not affect anything else. Details below.
- Introduce script for benchmarking various incremental builds. Usage is explained in the script comments.
- Add a line to `intervals` showing total main-thread CPU work logged in a profile; this can be used to compare the results of optimizations (I'll be starting a discussion informed by that data separately; this change just enables the tooling to report it).
2022-06-02 19:24:18 +00:00

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#!/bin/sh
# USAGE: ./tools/build-performance/bench-build.sh ~/benchmarks/output_file.csv
#
# Measures time to build after making changes to the sources.
#
# Notes:
# - This command will run `git clean`. Uncommitted work may be lost!
# - Must be run from root directory of repo.
# - The `time` command must support certain non-standard options. The version that ships with Ubuntu 21.10 works.
set -e
./run.sh clean
OUT="$1"
bench_mode() {
MODE="$1"
$(which time) -f "${MODE},%e" -o "${OUT}" -a -- ./run.sh wasm build --wasm-profile="${MODE}"
# Ensure any incremental files are loaded into memory.
# In my[KW] tests, despite having 64GB RAM, this makes a factor of 2 difference to the dev_change_nothing time.
./run.sh wasm build --wasm-profile="${MODE}"
$(which time) -f "${MODE}_change_nothing,%e" -o "${OUT}" -a -- ./run.sh wasm build --wasm-profile="${MODE}"
touch -c app/gui/src/lib.rs
$(which time) -f "${MODE}_change_ide,%e" -o "${OUT}" -a -- ./run.sh wasm build --wasm-profile="${MODE}"
touch -c app/gui/view/graph-editor/src/lib.rs
$(which time) -f "${MODE}_change_grapheditor,%e" -o "${OUT}" -a -- ./run.sh wasm build --wasm-profile="${MODE}"
touch -c lib/rust/prelude/src/lib.rs
$(which time) -f "${MODE}_change_prelude,%e" -o "${OUT}" -a -- ./run.sh wasm build --wasm-profile="${MODE}"
}
bench_mode dev
bench_mode release