Add GC timing data for TI sweeping and XPConnect

RESOLVED FIXED in mozilla11



JavaScript Engine
6 years ago
6 years ago


(Reporter: billm, Assigned: billm)



Firefox Tracking Flags

(Not tracked)



(1 attachment, 1 obsolete attachment)



6 years ago
Created attachment 571519 [details] [diff] [review]

This does as it says. It also makes it a little easier to add new fields without having to worry about column alignment.
Attachment #571519 - Flags: review?(cdleary)


6 years ago
Assignee: general → wmccloskey

Comment 1

6 years ago
Comment on attachment 571519 [details] [diff] [review]

I had an idea for an improvement to this. I'll post a new patch soon.
Attachment #571519 - Flags: review?(cdleary)

Comment 2

6 years ago
Created attachment 571762 [details] [diff] [review]
patch v2

This patch improves on the previous one by putting the MOZ_GCTIMER data into the Error Console (replacing the somewhat wrong data that was there before).

While I was at it, I also fixed the problem we have where we incorrectly think that all GCs are full GCs. With the fix, we will no longer run the cycle collector after a compartmental GC.

Gregor, do you have time to review this? Chris said his queue is pretty full.
Attachment #571519 - Attachment is obsolete: true
Attachment #571762 - Flags: review?(anygregor)
Attachment #571762 - Flags: review?(anygregor) → review+

Comment 3

6 years ago
Target Milestone: --- → mozilla11
Last Resolved: 6 years ago
Resolution: --- → FIXED
and follow-up

Comment 6

6 years ago
/me mumbles something about a patch to dom/ not getting a review from a DOM peer.

May I ask what the GC numbers mean ?

Comment 7

6 years ago
Especially, is the "Total" the total time in ms?

Comment 8

6 years ago
(In reply to Olli Pettay [:smaug] from comment #6)
> /me mumbles something about a patch to dom/ not getting a review from a DOM
> peer.
> May I ask what the GC numbers mean ?

Uh, sorry. I thought nsJSEnvironment.cpp was a special case.

The numbers are in milliseconds. I can add units, since I guess it is a little confusing. Mark and Sweep are the time to do marking and sweeping. The remaining numbers mostly just break down the sweeping number. +Chu and -Chu tell you how many GC chunks were allocated or freed since the last GC.
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