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https://github.com/kremalicious/metamask-extension.git
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e951fe6a64
On an M1 Mac, when running `yarn start`, CPU can spike to 100% CPU, and sometimes a bunch of `mdworker` instances will get spawned. This seems to be caused by the file-watching mechanism used in dev to automatically regenerate the build when something is changed. More specifically, we are using an older version of `watchify`, which uses an older version of `chokidar`, which is the package that actually does the watching. v4.0.0 of `watchify` upgrades `chokidar` to v3.x ([1]), which comes with "massive CPU & RAM consumption improvements" ([2]). After the upgrade, CPU usage decreases to 20-40%. [1]: https://github.com/browserify/watchify/blob/master/CHANGELOG.md#400 [2]: https://github.com/paulmillr/chokidar/releases/tag/3.0.0
39 lines
1.1 KiB
Diff
39 lines
1.1 KiB
Diff
diff --git a/node_modules/watchify/index.js b/node_modules/watchify/index.js
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index 0753b9f..05efb1b 100644
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--- a/node_modules/watchify/index.js
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+++ b/node_modules/watchify/index.js
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@@ -58,33 +58,6 @@ function watchify (b, opts) {
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if (pkgcache) pkgcache[file] = pkg;
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});
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- b.on('reset', reset);
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- reset();
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-
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- function reset () {
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- var time = null;
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- var bytes = 0;
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- b.pipeline.get('record').on('end', function () {
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- time = Date.now();
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- });
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-
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- b.pipeline.get('wrap').push(through(write, end));
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- function write (buf, enc, next) {
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- bytes += buf.length;
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- this.push(buf);
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- next();
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- }
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- function end () {
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- var delta = Date.now() - time;
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- b.emit('time', delta);
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- b.emit('bytes', bytes);
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- b.emit('log', bytes + ' bytes written ('
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- + (delta / 1000).toFixed(2) + ' seconds)'
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- );
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- this.push(null);
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- }
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- }
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-
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var fwatchers = {};
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var fwatcherFiles = {};
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var ignoredFiles = {};
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