NODE_ENV=production node --prof app.js
node --prof-process isolate-0x[Number]-v8.log > processed.txt
node --prof-process --preprocess isolate-0x[Number]-v8.log > v8.json
git clone https://github.com/v8/v8.git
- open v8/tools/profview/index.html
- select v8.json
- run ref#2 to get tick info. p.s. totoal ticks may apply on multiple-core
-
https://nodejs.org/uk/docs/guides/simple-profiling/ crypto.pbkdf2 and crypto.pbkdf2Sync both spwan a worker thread (
___pthread_init
) but the latter will make JS main thread to wait for the result for pthread -
to get how many ticks in 1 second:
gcc getticktime.c
- ./a.out