Closed Bug 960767 Opened 10 years ago Closed 6 years ago

Enormous CPU load with mouse movements jank during start of parallel xpcshell tests run

Categories

(Testing :: XPCShell Harness, defect)

Product:
Testing
Component:
XPCShell Harness
Platform:
x86_64
Windows 7
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

(Not tracked)

Status:
RESOLVED DUPLICATE of bug 1321026

People

(Reporter: mayhemer, Unassigned)

Details

i7@3.9/ssd, win7x64

Standard run of ./mach xpcshell-test network

When shells start to spawn, I can understand the CPU is at 100% (all cores) - that is actually the purpose to use all the CPU power.  But my mouse cursor responsiveness is very bad at that moment and sometime during the run.  That is not expected. 

It's not critical, just annoying.  Would be good to find out what is wrong.  This could potentially be something in the widget code that messes with win api and causes these OS janks.  Might be a thing to fix in the platform actually!
I don't think xpcshell actually instantiates any widget code (but I could be wrong). I would suspect this is more to do with just spawning a ton of processes at once.
Mass closing bugs with no activity in 2+ years. If this bug is important to you, please re-open.
Status: NEW → RESOLVED
Closed: 6 years ago
Resolution: --- → WONTFIX
Actually, a duplicate.
Resolution: WONTFIX → DUPLICATE
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