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Jaw
55836e1b49
Run oxfmt once over the whole repository (formatting only, no logic changes) and add `pnpm format:check` to the frontend CI job so unformatted code no longer builds up. `.oxfmtrc.json` now skips the generated theme docs, test fixtures and code blocks inside Markdown. Co-authored-by: jaw52 <53564781+jaw52@users.noreply.github.com>
52 lines
3.3 KiB
Markdown
52 lines
3.3 KiB
Markdown
# IDE comparison
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`pnpm perf` measures OpenIDEA from inside its webview. This measures any IDE
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from the outside, the same way for each, so OpenIDEA can be compared with
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IntelliJ IDEA (or anything else listed in `apps.toml`).
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```sh
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pip install -r perf/compare/requirements.txt
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python perf/compare/bench.py ~/src/spring-petclinic --runs 10
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python perf/compare/bench.py ~/src/spring-petclinic --runs 5 --wipe-caches # cold index
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```
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Each run launches the app on the project, waits until it is ready, idles,
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closes it, and records:
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| Metric | How |
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| ------------------------------------------- | --------------------------------------------------------------------------------------------------------------------- |
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| `window_s` | first visible window whose title matches `window_title` (the project name) |
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| `ready_s` | the process tree's CPU stays under `--quiet-cores` for `--quiet-secs`, after the window and any `ready_after` markers |
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| markers | first/last time a log line matches, e.g. OpenIDEA `indexed`, IDEA `exit dumb mode` |
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| `peak_rss_mb`, `rss_mb`, `uss_mb`, `pss_mb` | summed over every process the app started (WebView2/WebKit, jdtls, language servers, the JVM) |
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| `total_cpu_s`, `idle_cpu_pct` | CPU time until ready; CPU while idle for `--idle-secs` |
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| `exit_s` | until every process has exited |
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| `cache_mb`, install size | `cache_dirs`, `install_dir` |
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Apps run interleaved, rotating the order, after `--warmup` discarded runs.
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Output goes to `results/<time>-<project>/`: `report.md` (median, min–max),
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`results.json`, and each run's stdout.
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## Fair runs
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- Release builds only; a running instance of the same executable (a
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`pnpm tauri dev` build too) would take over the launch, so the script refuses.
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- IDEA: open the project once by hand and trust it; turn off _Reopen projects
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on startup_ and _Confirm before exiting_; note the version, `-Xmx` and whether
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Shared Indexes were on.
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- Same machine, power plan and plugged in; exclude the project and caches from
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antivirus scanning, or neither.
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- `--drop-os-cache` runs a command before each launch for a cold OS cache:
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`sync; echo 3 | sudo tee /proc/sys/vm/drop_caches` (Linux), `sudo purge`
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(macOS), `RAMMap64.exe -Et` (Windows, admin).
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- Typing latency is not covered: measure it on screen with Typometer for both.
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## Platform notes
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- Windows: windows via `user32`, closed with `WM_CLOSE`.
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- macOS: windows via Quartz (`pyobjc-framework-Quartz`; titles need Screen
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Recording permission). WebKit helpers are children of launchd and are
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attributed through `responsibility_get_pid_responsible_for_pid`.
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- Linux: windows via `wmctrl` (X11). Without it `window_s` is skipped and
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readiness counts from launch.
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