Experiment with a command-line tool for querying profile contents#5663
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mstange wants to merge 20 commits intofirefox-devtools:mainfrom
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Experiment with a command-line tool for querying profile contents#5663mstange wants to merge 20 commits intofirefox-devtools:mainfrom
mstange wants to merge 20 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 85.38% 83.57% -1.82%
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Files 322 329 +7
Lines 32099 33816 +1717
Branches 8840 9233 +393
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+ Hits 27408 28261 +853
- Misses 4260 5127 +867
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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.
`pq thread select t-x` doesn't work without running `pq profile info` first. If the pq session is restarted in between, we need to call it again to make sure that we generate the thread handles etc.
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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.pq load 'https://share.firefox.dev/hash'orpq load profile.json.gzstart a session.Only tested on macOS so far. It uses unix domain sockets so it probably doesn't work on Windows atm.