Open
Bug 1780330
Opened 2 years ago
Updated 2 years ago
Change PContent's ShutdownProfile IPC to pass a shmem and pid
Categories
(Core :: Gecko Profiler, task, P3)
Core
Gecko Profiler
Tracking
()
NEW
People
(Reporter: mozbugz, Unassigned)
References
Details
The current ShutdownProfile
IPC passes the shutdown profile by string.
Because of the IPC message limit of 256MB, some big child-process profiles could be discarded.
For comparison, PProfiler's GatherProfile
uses a shmem, which allows bigger profiles -- still effectively limited to 1GB, to fit in a JS string.
So to remove this IPC limitation, ShutdownProfile
should be modified to pass a shmem.
And while modifying it, we should also pass the source pid (process id), which will be useful to identify that sub-profile if needed.
Reporter | ||
Comment 1•2 years ago
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||
Note: Bug 1779367 changed ProfilerChild::GrabShutdownProfile
to catch profiles that would be over the IPC message limit, it should also be changed to the higher JS string limit.
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Description
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