api for reading cpu profiles from javascript

[Alvaro Pinot]

Is there any way of getting the cpu / heap profiles recording from the console?

I mean, after the execution of console.profile('foo'); console.profileEnd('foo')

Maybe something like console.profiles[0] or console.getProfiles()

Thanks in advance.

[Pavel Feldman]

console.* methods do not return values by convention. If you want to programmatically process the profile, you could implement a Chrome extension that uses chrome.debugger extensions API. That extension would issue Profoler.enable method and as a result, upon each console.profile(End), the profile data would be delivered to the extension. Should be a dozen of lines altogether. See examples of how to attach to the page using that API. Note that DevTools for that tab needs to stay closed. You can use Runtime.evaluate command to script the page.

Pavel

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[Paul Irish]

To add on, the https://github.com/paulirish/automated-chrome-profiling repo has a few recipes for this that should help.

To view this discussion on the web visit https://groups.google.com/d/msgid/google-chrome-developer-tools/CAEX3KhZ9ObzVwz%3DaY_4ZMU%3DJYnLOjvoGbe12bg%2BnfdiWxQyYSg%40mail.gmail.com.

[Alvaro Pinot]

Thank you! But the original idea is to profile a page without any extension :D

El viernes, 15 de abril de 2016, 18:20:07 (UTC+2), pfeldman escribió:

console.* methods do not return values by convention. If you want to programmatically process the profile, you could implement a Chrome extension that uses chrome.debugger extensions API. That extension would issue Profoler.enable method and as a result, upon each console.profile(End), the profile data would be delivered to the extension. Should be a dozen of lines altogether. See examples of how to attach to the page using that API. Note that DevTools for that tab needs to stay closed. You can use Runtime.evaluate command to script the page.

Pavel

On Fri, Apr 15, 2016, 08:13 Alvaro Pinot <alv...@neatnait.com> wrote:

Is there any way of getting the cpu / heap profiles recording from the console?

I mean, after the execution of console.profile('foo'); console.profileEnd('foo')

Maybe something like console.profiles[0] or console.getProfiles()

Thanks in advance.

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[Alvaro Pinot]

Than you Pau. That's, indeed, just what I was looking for :D 

El viernes, 15 de abril de 2016, 19:56:59 (UTC+2), Paul Irish escribió:

To add on, the https://github.com/paulirish/automated-chrome-profiling repo has a few recipes for this that should help.

On Apr 15, 2016 12:20 PM, "Pavel Feldman" <pfel...@chromium.org> wrote:

console.* methods do not return values by convention. If you want to programmatically process the profile, you could implement a Chrome extension that uses chrome.debugger extensions API. That extension would issue Profoler.enable method and as a result, upon each console.profile(End), the profile data would be delivered to the extension. Should be a dozen of lines altogether. See examples of how to attach to the page using that API. Note that DevTools for that tab needs to stay closed. You can use Runtime.evaluate command to script the page.

Pavel

On Fri, Apr 15, 2016, 08:13 Alvaro Pinot <alv...@neatnait.com> wrote:

Is there any way of getting the cpu / heap profiles recording from the console?

I mean, after the execution of console.profile('foo'); console.profileEnd('foo')

Maybe something like console.profiles[0] or console.getProfiles()

Thanks in advance.

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