Profiling "(program)" CPU usage

[dan...@d15.biz]

Is there a way to profile CPU usage that appears as "(program)" in the Chrome devtools profiler? Would a native profiler be able to capture this information? I'm seeing some pages with very high CPU usage (ie. 60-70% while idle) and the profiler attributes most of it to "(program)".

Thanks!

[Paul Irish]

Fire up Chrome Canary (or beta I think), go to Timeline and check the JS profiler tab.

Then record the same thing

You will get all the same JS frame activity data but also the other work the browser is doing. Usually it illuminates what else the browser is doing.

On Sun, Dec 21, 2014 at 6:17 PM, <dan...@d15.biz> wrote:

Is there a way to profile CPU usage that appears as "(program)" in the Chrome devtools profiler? Would a native profiler be able to capture this information? I'm seeing some pages with very high CPU usage (ie. 60-70% while idle) and the profiler attributes most of it to "(program)".

Thanks!

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[Daniel Lo Nigro]

Thanks Paul! If I try that, there's some CPU usage listed as "other". Is there a way to dive further into the "other" usage here? Thanks!

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Daniel Lo Nigro
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[Paul Irish]

Hi Daniel,

Ah this is really helpful.

Can you reliably reproduce this? If so, please go to about:tracing in Chrome, hit record, use web developer settings and complete the recording. Then Save, zip it up, and attach it on this thread. 

If you could also right-click in timeline, save, and attach that, it'd be very helpful. 

This way we can identify what that Other time is and improve how we capture it in the Timeline.

Cheers

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