--pprof-cpu

CLI: --pprof-cpu
REST: with_pprof_cpu

ValuePATH

LicensePro

Writes a CPU sampling profile as gzip-compressed pprof alongside the render. On the server, the profile is returned as a Link response header.

Scope

Sampling covers the main frame and same-origin iframes. Workers and cross-origin iframes run in their own V8 isolates and are excluded.

Example

Run locally

zshot -f page.png \
  --pprof-cpu page.cpu.pprof \
  https://zshot-cli.com/example_assets/zemu/

{
  "url": "https://zshot-cli.com/example_assets/zemu/",
  "output_type": "png",
  "with_pprof_cpu": true
}

curl -X POST http://127.0.0.1:3000/ \
  -H "Content-Type: application/json" \
  -d '{"url":"https://zshot-cli.com/example_assets/zemu/","output_type":"png","with_pprof_cpu":true}' \
  -D - -o page.png