Experiment with a command-line tool for querying profile contents#5663
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mstange wants to merge 57 commits intofirefox-devtools:mainfrom
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Experiment with a command-line tool for querying profile contents#5663mstange wants to merge 57 commits intofirefox-devtools:mainfrom
mstange wants to merge 57 commits intofirefox-devtools:mainfrom
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Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## main #5663 +/- ##
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- Coverage 85.37% 83.72% -1.65%
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This is useful for cases where I want to drop all the "idle" category samples, so I can focus on non-idle samples. Or it can be useful for dropping the whole profiler overhead by removing the "profiler" category. I would like to use this transform in the pq cli tool, so we can remove the idle category before finding the "top functions". Otherwise the idle category just pollutes the output of the cli a lot.
A `yarn test:cli` script was added to run only the cli tests, but it looks like the main tests are also running them since they match the testMatch glob.
This gives much better defaults for a cli, and has much better ergonomics. For example, we didn't have per-command help, and commander handles it out of the box. Also we don't have to parse all the cli arguments one by one, commander takes care of them for us. Overall it makes adding a new command and updating them easier.
I've tried to use and love the profiler-cli in the terminal, but it's just so difficult to type compared to pq, and it made me so annoyed. I think it makes sense to publish the package as profiler-cli, but this pq symlink as a shortcut is such a huge productivity boost if you are actually using the tool yourself.
Denis' tool has this feature already. It's good if we support it too since the logs are important for some teams.
This is very similar to Denis' tool's --page-load
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Sometimes I've wanted to inspect profiles from the command line, without loading them in the web UI.
Here's an experiment I've been working on, which creates a
pqtool ("profile query"). To test, clone this branch and runyarn build-profile-query-cli- this creates a./dist/pq.jsartifact. Then somehow make it accessible via your path, for example by putting a shell script with the contentsnode ~/code/profiler/src/profile-query-cli/dist/pq.js "$@"into abindirectory in your path.Or you can run
yarn linkin./profile-query-cli/to linkpqglobally.pq load 'https://share.firefox.dev/hash'orpq load profile.json.gzstart a session.