-
Notifications
You must be signed in to change notification settings - Fork 237
Importing from stackprof (ruby)
Jamie Wong edited this page Feb 15, 2019
·
2 revisions
stackprof
is a sampling call-stack profiler for Ruby.
To record a profile, wrap your code in a StackProf.run
block with raw: true
, then save the JSON encoded version of the profile to a file. You'll need to be running stackprof >= 0.2.11
.
require 'json'
require 'stackprof'
profile = StackProf.run(mode: :wall, raw: true) do
# Do your thing here
end
File.write('stackprof.json', JSON.generate(profile))
Then drop the resulting stackprof.json
into https://www.speedscope.app/
To view it offline, you'll need to install speedscope via npm
:
npm install -g speedscope
Then you should be able to open it like so:
speedscope stackprof.json