961437 - Profiler is very slow when loading a large page.

Status: RESOLVED INVALID

(DevTools :: Performance Tools (Profiler/Timeline), defect)

Description

[Luke]

Attachment: Profilerslow.png

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:26.0) Gecko/20100101 Firefox/26.0 (Beta/Release)
Build ID: 20131206145143

Steps to reproduce:

I opened a very large html (about 7000 table rows), which usually doesn't bog down the browser too much. However, it took an extremely long time to get profile results, and the browser was unresponsive for some time, when I profiled while the page loaded.


Actual results:

After a looong time (many minutes), the profile finally loaded, and gave the attached results (as you can see, these are all greyed out, system javascript)


Expected results:

Profiler should be able to not lock up the UI, it seems there may be some inefficency in the Firefox-core items shown in this profile?

Comment 1

[dfern]

Retested on 29.0a1 (2014-01-20) Windows 7 64 bit [bugday-20140120]
I do not see the issue
Do you have a link to the actual html or similiar html that leads to the same behavior?

Comment 2

[Luke]

Attachment: Test case that sometimes causes long freeze when profiling while page loads.

After using the browser for awhile (with Firefox using >1gb RAM), open this file, clicking the devtools "profile" button immediately after, and click it again when page has loaded fully. This will often freeze the browser for half an hour or more.

Comment 3

[Wayne Mery (:wsmwk)]

what other addons are installed?

Comment 4

[Luke]

Application: Firefox 26.0 (20131206145143)
Operating System: Linux (x86_64-gcc3)

- Aardvark 3.0 (Disabled, Incompatible)
- Adblock Plus 2.4.1
- Adblock Plus Pop-up Addon 0.9.1 (Disabled)
- Addons Recent Updates 0.1.6 (Disabled)
- Bible Refalizer 0.1.12
- Cheevos 1.5 (Disabled)
- Color Transform 4.4
- ColorZilla 2.8
- Developer Assistant 0.3.0.20110927 (Disabled)
- Developer Tools - toolbar button 1.10 (Disabled)
- DevTools Tweaks 0.4.2
- DOM Inspector 2.0.14 (Disabled)
- DOM Inspector Plus! [dm] 2.0.13.1
- DownThemAll! 2.0.16 (Disabled)
- Extension List Dumper 1.15.2
- Extension Test 2.13 (Disabled)
- Extension Tracker 3.5.2 (Disabled, Incompatible)
- Facebook Disconnect 2.1.3
- Fast Dial 4.11 (Disabled)
- Favicon Picker 2 0.6.2.15 (Disabled, Incompatible)
- FindBar Tweak 1.4.17
- FireBible 1.4 (Disabled)
- Firebug 1.12.6 (Disabled)
- Fireclam 0.7.1 (Disabled)
- Firepicker 1.4.3 (Disabled)
- FireQuery 1.4.1 (Disabled)
- Firesomething 1.8.0 (Disabled, Incompatible)
- FlashFirebug 4.7 (Disabled)
- FoxClocks 3.4.14 (Disabled)
- Ghostery 5.1.0
- Greasemonkey 1.14 (Disabled)
- gTranslate 0.9 (Disabled)
- Hide in Plain Sight 0.6 (Disabled)
- Illuminations for Developers 1.1.27 (Disabled)
- iMacros for Firefox 8.6.0 (Disabled)
- InspectThis 1.0.0 (Disabled)
- JavaScript Debugger 0.9.89 (Disabled)
- JS Deminifier 1.0.9 (Disabled)
- Lazarus: Form Recovery 2.3 (Disabled)
- Lightbeam 1.0.5
- Live HTTP headers 0.17 (Disabled)
- Location Bar Enhancer 5.1 (Disabled)
- Magnifier 0.6 (Disabled)
- Offline QR generator 1.0
- Open in Private Window 0.2.1
- Organize Status Bar 0.6.4 (Disabled, Incompatible)
- Pi 0.1 (Disabled)
- Print Edit 11.1
- QuickJava 2.0.3 (Disabled)
- S3.Google Translator 2.12
- ScrapBook 1.5.8
- Scratchpad Editor 0.3.1
- SettingSanity 0.7.20131121
- Simple Timer 1.13
- Status-bar Scientific Calculator 5.0.2 (Disabled)
- Test Pilot 1.2.3 (Disabled)
- Textarea Cache 0.8.10 (Disabled)
- Tilt 1.0.1 (Disabled)
- Tiny JavaScript Debugger 0.9.3
- Translate This! 3.0.1 (Disabled)
- Tree Style Tab 0.14.2013112901 (Disabled)
- Ubuntu Firefox Modifications 2.8
- Ubuntu Online Accounts 0.5
- Unity Desktop Integration 2.4.8
- Unity Websites integration 2013.09.20.beta
- UnPlug 2.054 (Disabled)
- User Agent Switcher 0.7.3 (Disabled)
- View Source Chart 3.05 (Disabled)
- Web Console 1.0 (Disabled)
- Web Developer 1.2.5 (Disabled)
- Web Page Fixer + 1.7.2 (Disabled)
- Windows NT Chart 2.1
- YouTube ALL HTML5 2.1.0

Comment 5

[Victor Porof [:vporof][:vp]]

Since this affects the addon, removing the issue. This component is for the devtools profiler.