Closed Bug 276068 Opened 20 years ago Closed 20 years ago

High CPU after portable wakeup

Categories

(Firefox :: General, defect)

Product:
Firefox
Component:
General
Version:
1.0 Branch
Platform:
PowerPC
macOS
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED WORKSFORME

People

(Reporter: jeremyw-mozilla-bugzilla, Assigned: jaas)

Details

After wakeup (PBG4) an existing session of Firefox runs the CPU ~65% (1.25Ghz
box) for some time (2-20 minutes) before dropping back down to ~4%.

I routinely have 20+ tabs open and run Firefox for weeks at a time, through many
sleep/wakeup cycles.  Not quite sure when the high CPU behavior starts, although
it is consistent, once it starts.
Reporter, this looks like bug 232715, but that was fixed a long time ago (after
Firefox 1.0PR, but before Firefox 1.0). Which version are you running ?
(In reply to comment #1)
> Reporter, this looks like bug 232715, but that was fixed a long time ago (after
> Firefox 1.0PR, but before Firefox 1.0). Which version are you running ?

About box says 1.0.

Different from bug 232715, I don't see any functional problems, just CPU use.
Assignee: firefox → joshmoz
I think my bug report is bogus.  After more experimenting, pages with refresh
look to all fire at wakeup.  If they have lots of ads, you have lots of pages
animating.  If I hunt down which pages are anim intensive, I can usually drop
the cpu use.  Since many gif anims eventually stop this cpu cost is normally
amortized in general tab use.  For instance, I don't see this behavior on
non-sleeping desktops.

Two enhancements might be nice for users running many dozens of tabs across long
stretches.

a) not animating pages when out of focus
b) some tool to track down intensive pages

ok
Status: UNCONFIRMED → RESOLVED
Closed: 20 years ago
Resolution: --- → WORKSFORME
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