4 ms·

Google releases a Chrome extension to identify web app performance problems

82 points by seekely 17y ago

bgray 17y ago
Very Nice! Now we need extension support on OSX Chrome even more! :)
- peregrine 17y ago
  I'm running Linux nightlys and extensions work very well. I might assume that OSX works the same... This one does not work though, must be some api calls net setup correctly yet.
  - donjaime_hn 17y ago
    Make sure you run chrome with the flag --enable-extension-timeline-api You have to enable the instrumentation as explained in the getting started doc: http://code.google.com/webtoolkit/speedtracer/get-started.html http://code.google.com/webtoolkit/speedtracer/get-started.ht...
    - peregrine 17y ago
      I did follow the guide it just didn't do anything afterwards. Oh well.
      - mattyb 17y ago
        Works for me.
      - donjaime_hn 17y ago
        If you have a chrome window open, or a zombie chrome process, running it again will just fork a new window from the existing browser process. Make sure you shut them all down before running.
- andylei 17y ago
  we actually had it for a little while. they disabled it b/c of some security issue, but it'll be back soon. http://code.google.com/p/chromium/issues/detail?id=29086#c5 http://code.google.com/p/chromium/issues/detail?id=29086#c5
sparky 17y ago
I haven't dug into it yet, but from the video the sluggishness and network graphs seem to be a great level of abstraction at which to view the UX behavior of your application. One question I have: I can't figure out if this is only for GWT (Java compiled to Javascript) apps or for any web app). Anyone?
- tdupree 17y ago
  I believe you can run Speed Tracer against any web app (it's working fine profiling my stuff and I don't use GWT), kinda like using Firebug.
- donjaime_hn 17y ago
  It was developed by members of the GWT team and was released as part of the GWT 2.0 launch, but it will work with any web application.
PStamatiou 17y ago
I think this is what Yahoo! wanted that YSlow firebug add-on to be. I'm quite enjoying Speed Tracer but it's giving me a warning about Google Analytics embed code. Those two teams need to have a meeting..
- PStamatiou 17y ago
  Actually it was just trying to tell me to upgrade to the new Google Analytics code: http://analytics.blogspot.com/2009/12/google-analytics-launches-asynchronous.html http://analytics.blogspot.com/2009/12/google-analytics-launc...
boucher 17y ago
This app was demo'd at Google IO this past spring. It was incredibly cool back then, and it's only gotten better since. It's going to be an amazing tool for web developers.
dminor 17y ago
This would be even better if it could break down javascript execution time on a line by line basis. I was able to spot an inefficient javascript file, but only found the culprit by commenting and uncommenting lines (inefficient jquery selector). Way cool though.
ericb 17y ago
This is a cool tool, but I suspect its major use-case will be premature optimization.

82 points by seekely 17y ago

bgray 17y ago

Very Nice! Now we need extension support on OSX Chrome even more! :)

peregrine 17y ago
I'm running Linux nightlys and extensions work very well. I might assume that OSX works the same... This one does not work though, must be some api calls net setup correctly yet.
- donjaime_hn 17y ago
  Make sure you run chrome with the flag --enable-extension-timeline-api You have to enable the instrumentation as explained in the getting started doc: http://code.google.com/webtoolkit/speedtracer/get-started.html http://code.google.com/webtoolkit/speedtracer/get-started.ht...
  - peregrine 17y ago
    I did follow the guide it just didn't do anything afterwards. Oh well.
    - mattyb 17y ago
      Works for me.
    - donjaime_hn 17y ago
      If you have a chrome window open, or a zombie chrome process, running it again will just fork a new window from the existing browser process. Make sure you shut them all down before running.
andylei 17y ago
we actually had it for a little while. they disabled it b/c of some security issue, but it'll be back soon. http://code.google.com/p/chromium/issues/detail?id=29086#c5 http://code.google.com/p/chromium/issues/detail?id=29086#c5

sparky 17y ago

I haven't dug into it yet, but from the video the sluggishness and network graphs seem to be a great level of abstraction at which to view the UX behavior of your application. One question I have: I can't figure out if this is only for GWT (Java compiled to Javascript) apps or for any web app). Anyone?

tdupree 17y ago
I believe you can run Speed Tracer against any web app (it's working fine profiling my stuff and I don't use GWT), kinda like using Firebug.
donjaime_hn 17y ago
It was developed by members of the GWT team and was released as part of the GWT 2.0 launch, but it will work with any web application.

PStamatiou 17y ago

I think this is what Yahoo! wanted that YSlow firebug add-on to be. I'm quite enjoying Speed Tracer but it's giving me a warning about Google Analytics embed code. Those two teams need to have a meeting..

PStamatiou 17y ago
Actually it was just trying to tell me to upgrade to the new Google Analytics code: http://analytics.blogspot.com/2009/12/google-analytics-launches-asynchronous.html http://analytics.blogspot.com/2009/12/google-analytics-launc...

boucher 17y ago

This app was demo'd at Google IO this past spring. It was incredibly cool back then, and it's only gotten better since. It's going to be an amazing tool for web developers.

dminor 17y ago

This would be even better if it could break down javascript execution time on a line by line basis. I was able to spot an inefficient javascript file, but only found the culprit by commenting and uncommenting lines (inefficient jquery selector). Way cool though.

ericb 17y ago

This is a cool tool, but I suspect its major use-case will be premature optimization.