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bcdd228f90
Add a sampling-based event loop delay monitor.
```js
const { monitorEventLoopDelay } = require('perf_hooks');
const h = monitorEventLoopDelay();
h.enable();
h.disable();
console.log(h.percentiles);
console.log(h.min);
console.log(h.max);
console.log(h.mean);
console.log(h.stddev);
console.log(h.percentile(50));
```
PR-URL: https://github.com/nodejs/node/pull/25378
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
42 lines
2.1 KiB
Plaintext
42 lines
2.1 KiB
Plaintext
The code in this repository code was Written by Gil Tene, Michael Barker,
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and Matt Warren, and released to the public domain, as explained at
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http://creativecommons.org/publicdomain/zero/1.0/
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For users of this code who wish to consume it under the "BSD" license
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rather than under the public domain or CC0 contribution text mentioned
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above, the code found under this directory is *also* provided under the
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following license (commonly referred to as the BSD 2-Clause License). This
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license does not detract from the above stated release of the code into
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the public domain, and simply represents an additional license granted by
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the Author.
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-----------------------------------------------------------------------------
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** Beginning of "BSD 2-Clause License" text. **
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Copyright (c) 2012, 2013, 2014 Gil Tene
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Copyright (c) 2014 Michael Barker
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Copyright (c) 2014 Matt Warren
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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THE POSSIBILITY OF SUCH DAMAGE.
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