Status

()

Core
JavaScript Engine
RESOLVED WORKSFORME
6 years ago
3 years ago

People

(Reporter: Mayank Bansal, Unassigned)

Tracking

Trunk
x86_64
Windows 7
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [snappy], URL)

(Reporter)

Description

6 years ago
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20130113 Firefox/21.0
Build ID: 20130113031019

Steps to reproduce:

1. Create fresh profile
2. Make a Yahoo mail account. Make sure Inbox has some mails.
3. Come to this page.
3. Ctrl+click on  mail.yahoo.com
5. try to scroll in the tab while yahoo is loading in the background tab.


Actual results:

Janks. CPU usage is 100%.
Yahoo has always been quite sucky. But AFAIK, this particular bug is a recent regression. Probably less than 1 month old.

********************

http://people.mozilla.com/~bgirard/cleopatra/#report=74100f6a61e10ffdeb9b4288457d5269c363cd2f


Expected results:

Smooth loading.
(Reporter)

Updated

6 years ago
Whiteboard: [snappy]

Comment 1

6 years ago
Is this still bad when you set firefox cache size to 0( via advanced/network settings)?
(Reporter)

Comment 2

6 years ago
It janks lesser, but still noticable.
(Reporter)

Comment 3

6 years ago
FWIW, the SPS profiler doesnt record the profile for more than 3-4 seconds on yahoo mail. Even if the profiler runs for ~12-13 seconds, the profile shows a time of only ~3.4 seconds.
Is this a bug ?
(Reporter)

Comment 4

5 years ago
This has worsened in the past few days. Its so bad now that i cringe when i see a new mail notification, and have to open ymail.
And i use a SSD.
Confirmed the Jank against Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20130320 Firefox/22.0 ID:20130320031103 CSet: 8156df33b757, no 100% CPU Usage on my End though.

fresh SPS: http://people.mozilla.com/~bgirard/cleopatra/#report=09cc1e866f7de4f7459e917ea5dcaf974518933c
Assignee: nobody → general
Status: UNCONFIRMED → NEW
Component: Untriaged → JavaScript Engine
Ever confirmed: true
Product: Firefox → Core
Version: 21 Branch → Trunk
(Assignee)

Updated

4 years ago
Assignee: general → nobody
(Reporter)

Comment 6

3 years ago
fine enough now.
Status: NEW → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WORKSFORME
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