IMPORTANT LESSON: when bringing in node (and possibly other
executables) via CIPD, add them to the path in gen_tasks_logic
so the parent executable (the task driver itself) has the right
PATH set. Otherwise, the subprocesses it spawns might grab the
wrong version because of how golang handles environments of
subprocesses.
This is starting as a fork of Skottie WASM. I hope to have a more unified
system for creating and running benchmarks.
Overall overview:
gen_tasks_logic.go creates a task in task.json that compiles
CanvasKit and the task drivers and then executes our task
(i.e. perf_puppeteer.go)
perf_puppeteer runs a node program (perf-with-puppeteer.js)
that uses puppeteer to execute benchmarking code on an
html page (canvaskit-skottie-frames-load.html).
I needed to update the node package so npm could be updated from
3.x to 6.14.4 so it knew about `npm ci`. This may not have been
entirely necessary, given the problems of executing the correct
npm (see important lesson above), but it hasn't broken things
further, so more up-to-date is probably a good thing.
Suggested Review Order:
- canvaskit-skottie-frames-load.html (note it is similar to
skottie-wasm-perf.html, but it waits for a button click
to start animating and records times from the main JS thread
itself)
- perf-with-puppeteer.js (similar to skottie-wasm-perf.js, but
has some things made optional [e.g. tracing])
- perf_puppeteer_test.go (shows the inputs/outputs of various steps)
- perf_puppeteer.go
- Everything else.
Change-Id: I380e81b825f36682c257664d488267edaf36369e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/285783
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
