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eaab2eb09d
Currently, jevents.py parses hundreds of JSON event and metric files sequentially across all CPU architectures during Kbuild startup, taking ~3.5 seconds of single-core execution time. Refactor jevents.py to pre-populate its internal JSON AST cache in parallel across all available CPU cores using ProcessPoolExecutor. First gather all the paths with ftw and collect_json, then spawn _parallel_read_json_events that starts workers to just read the json events. Define the worker process initializer _init_worker so that _arch_std_events is available under spawn multiprocessing semantics. This accelerates the JSON parsing phase by over 10x (from ~3.0s down to ~290ms), reducing overall jevents.py execution time by 3.5x (from ~3.56s down to ~1.03s). Tested-by: James Clark <james.clark@linaro.org> Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
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| .. | ||
| accounting | ||
| arch | ||
| bootconfig | ||
| bpf | ||
| build | ||
| certs | ||
| cgroup | ||
| counter | ||
| crypto | ||
| debugging | ||
| dma | ||
| docs | ||
| firewire | ||
| firmware | ||
| gpio | ||
| hv | ||
| iio | ||
| include | ||
| kvm/kvm_stat | ||
| laptop | ||
| leds | ||
| lib | ||
| memory-model | ||
| mm | ||
| net | ||
| objtool | ||
| pcmcia | ||
| perf | ||
| power | ||
| rcu | ||
| sched | ||
| sched_ext | ||
| scripts | ||
| sound | ||
| spi | ||
| testing | ||
| thermal | ||
| time | ||
| tracing | ||
| unittests | ||
| usb | ||
| verification | ||
| virtio | ||
| wmi | ||
| workqueue | ||
| writeback | ||
| Makefile | ||