iBazel Benchmark Runner

This script runs iBazel on a specified target with the iBazel profiler enabled. After the initial build completes, it modifies a specified file by adding a newline to the end of it. The script reports the initial build time and the incremental build RTT.

It can also optionally launch chrome to a specified URL and report on the browser load RTT if the target (such as ts_devserver) serves a website.

Reporting

The scripts outputs the RTT in ms as follows:

[ibazel-benchmark-runner] Initial build time 24059ms
[ibazel-benchmark-runner] Incremental build RTT 4192ms
[ibazel-benchmark-runner] Browser load RTT 4402ms

Usage

node_modules/.bin/ibazel-benchmark-runner <run_target> <file_to_modify> [--url=<url>] [--initial_timeout=<seconds>] [--incremental_timeout=<seconds>]

| Argument | Description | | ------------- | ------------- | | run_target | The bazel target to run. | | file_to_modify | The file to modify in order to start in incremental build (a newline will be added to the end of this file). | | url | Url for the benchmark to navigate to in order to measure browser interactive RTT for incremental build (optional). | | initial_timeout | Maximum time to wait for the initial build (defaults to 300 seconds). | | incremental_timeout | Maximum time to wait for the incremental build (defaults to 60 seconds). | | browser_timeout | Maximum time to wait for browser page load event (defaults to 60 seconds). |

For example:

node_modules/.bin/ibazel-benchmark-runner //src:devserver src/foo/bar.ts --url=http://localhost:5432