Open Bug 1339982 Opened 8 years ago Updated 2 years ago

Reduced profiling experience when running with many content processes (crashes, hangs, ...)

Categories

(Core :: Gecko Profiler, enhancement, P2)

Product:
Core
Component:
Gecko Profiler
Type:
enhancement

Tracking

()

Tracking Flags:
Tracking Status
firefox54 --- affected

People

(Reporter: mstange, Unassigned)

References

(Blocks 3 open bugs)

Details

STR: 1. Increase the number of content processes to 8. 2. Browse as usual. 3. Grab a profile. Sometimes capturing the profile hangs, sometimes it runs out of memory and crashes (e.g. https://crash-stats.mozilla.com/report/index/7ee6a0b1-8fda-4304-be75-c42f22170110 ), and it's altogether a bad experience. One problem here is that the parent process collects all subprocess profiles and stuffs them into one big JSON string. An easy remedy would be to extend the nsIProfiler API to report the profiles of each process separately, and then assembling the different profiles in the perf.html UI, as they come in.
Blocks: 1431175

This idea to split the profile data could help with recent bug 1758643.

Blocks: 1329219, 1758643
Severity: normal → S3
Type: defect → enhancement
Priority: -- → P2
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