Loading v8.log no longer shows all the information

[catapult-bot]

Issue by thlorenz
Monday Sep 29, 2014 at 18:23 GMT
Originally opened as google/trace-viewer#622

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In a previous version of Chrome I was able to load v8.log and see a callgraph similar to the below including v8 events like GC::Scavenger in the band at the bottom.

related info

I also was able to navigate/search the results and determine how often each function got called, how long each call took, etc.

Starting about 2 months ago loading the same v8.log files don't show the desired results anymore. It's not showing any v8 events and the callgraph display is jacked.
Producing a fresh v8.log by rerunning the same script described in the above linked issue didn't help either.

Even loading the v8.log found inside the tests of this repo yields an incomplete view as well.
It seems only v8.timers are shown. The band at the bottom that shows Events is totally missing. Interactions like zooming are not working properly with the mouse (via the DOOM keys works fine).

Below is a screenshot of producing a fresh v8.log for the same app as was done to produce the screenshot at the very top.
However again the Events band is totally missing and interactions like zooming don't work as before.

If you like I can provide that v8.log file which was produced with a node.js version running v8: '3.25.30'.

I'm on OSX 10.9.5 using Chrome Version 37.0.2062.124, but have also tried with Chromium Version 39.0.2167.0 with similar results.

[catapult-bot]

Comment by thlorenz
Monday Sep 29, 2014 at 18:35 GMT

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Actually just realizing that what it's showing are v8 events only.
The callgraph of my app is not shown at all.

Becomes clearer when zooming in a bit (this one again from the node.js produced v8.log).

[catapult-bot]

Comment by thlorenz
Monday Sep 29, 2014 at 18:48 GMT

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Talked to @paulirish in IRC about this problem and if I understood correctly this is intended to work until Chrome DevTools can provide this functionality.

[catapult-bot]

Comment by fmeawad
Friday Apr 10, 2015 at 22:01 GMT

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This view has been replaced by a the sunburst in the analysis view, but we might bring it back in another form (unrelated to how it appears in dev-tools)

[catapult-bot]

Comment by fmeawad
Monday Apr 13, 2015 at 18:34 GMT

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I am working on a tree-view representation (instead of the sunburst)

[catapult-bot]

Comment by natduca
Monday Apr 13, 2015 at 18:50 GMT

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Awesome, lemme know if you need help with tree builder Fady. The tree_builder_test files should help but...

[fmeawad]

Closing in favor of #1233.