64 строки
1.9 KiB
Markdown
64 строки
1.9 KiB
Markdown
# Lighthouse Metrics Analysis
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Online at https://googlechrome.github.io/lighthouse/plots/
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For context and roadmap, please see issue:
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https://github.com/GoogleChrome/lighthouse/issues/1924
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## Workflow
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### Setup
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You need to build lighthouse first.
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### Generating & viewing charts
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```
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# Run lighthouse to collect metrics data
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$ node measure.js
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# OR if you want to specify an out directory
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$ node measure.js --out out-123
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# Analyze the data to generate a summary file (i.e. out-hello/generated-results.js)
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# This will launch the charts web page in the browser
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# node analyze.js {out_directory}
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$ node analyze.js ./out-hello
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# Generate dashboard using a parent folder with multiple batch results
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$ node generate-dashboard.js out-parent-folder
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# Or you can specify each batch result explicitly
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$ node generate-dashboard.js out-1 out-2 out-3
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```
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### Advanced usage
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```
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$ node measure.js --help
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node measure.js [options]
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Lighthouse settings:
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--disable-device-emulation Disable Nexus 5X emulation [boolean]
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Options to specify sites:
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--sites-path Include relative path of a json file with urls to run [default: "sites.js"]
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--subset Measure a subset of popular sites
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--site Include a specific site url to run
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Options:
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--help Show help [boolean]
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--out Custom out path
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-n Number of runs per site [default: 3]
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--reuse-chrome Reuse the same Chrome instance across all site runs
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--keep-first-run If you use --reuse-chrome, by default the first run results are discarded
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Examples:
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node measure.js -n 3 --sites-path ./sample-sites.json
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node measure.js --site https://google.com/
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node measure.js --subset
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```
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