ROME demo: 10% time spent in the GC

NEW
Unassigned

Status

()

defect
8 years ago
5 years ago

People

(Reporter: bjacob, Unassigned)

Tracking

Trunk
x86_64
Linux
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: js-triage-needed, URL)

Attachments

(1 attachment)

Running Google's ROME demo, perf says that we spend roughly 10% time in the GC. Maybe that's normal, I don't know.

The attached file is a xz-compressed archive containing the raw Perf data + ascii call graph attached.

It still runs decently fast, but uses 2G of RAM. An about:memory capture of the same run is here: attachment 548567 [details]

See also: bug 657115
Whiteboard: js-triage-needed
The ROME demo does a lot of empty-chunk GCs, and I didn't see it do a single compartmental GC, which could make it spend more time than it really needs to.
Version: unspecified → Trunk
Assignee: general → nobody
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