Javascript Performance Thread

[Josa]

Maybe the blockers bugs of this bug? https://bugzilla.mozilla.org/show_bug.cgi?id=745386 (LandIon)

[Omega X]

Not sure. Brendan Eich was positive that the engine would push through Thursday last week. Its probably going to need a full cycle to test. So the sooner the better.

[jandem]

The plan is still to land IonMonkey for FF 18, this week or early next week. It took a while because there was some uncertainty about b2g - we will land with Ion disabled there, see bug 789373.

[jandem]

IonMonkey just landed on mozilla-central

[TheVisitor]

IonMonkey just landed on mozilla-central

Holy-cow, almost 2000 patches in one merge

[NVD]

Posting from latest hourly build with Ionmonkey. Seems to work fine here.

[Srap]

Disabled or enabled by default?

[KWierso]

Enabled everywhere bug b2g, I think.

[Zlip792]

Disabled or enabled by default?

I think performance was fair enough to land it enabled. It was disabled only for B2G builds, so Yes, I think it is enabled.

[Omega X]

https://bugzilla.mozilla.org/show_bug.cgi?id=789373#c0

[Edds]

So my test results with latest m-c hourly.

SunSpider 0.9.1
1. Total: 106.4ms +/- 1.0% - Chrome 19.0.1084.46 beta-m
2. Total: 113.9ms +/- 0.6% - Firefox 16 beta
3. Total: 145.0ms +/- 1.6% - Firefox 18.0a1 (2012-09-11)

Kraken 1.1
1. Total: 1339.9ms +/- 0.7% - Firefox 18.0a1 (2012-09-11)
2. Total: 1409.1ms +/- 1.2% - Chrome 22.0.1229.39 beta-m
3. Total: 1804.5ms +/- 1.4% - Firefox 16 beta

V8 version 7
1. Score: 20736 - Chrome 22.0.1229.39 beta-m
2. Score: 14764 - Firefox 18.0a1 (2012-09-11)
3. Score: 13020 - Firefox 16 beta

Test system in signature.

[speciesx]

With IonMonkey

Octane-benchmark
Box2DWeb ->Error
RayTrace ->Error
Mandreel ->Error

V8 version 7
RayTrace: error

[streetwolf]

With IonMonkey

SunSpider 0.9.1 ..... 146.1ms +/- 0.8%
Kraken 1.1 ...... 1289.5ms +/- 0.7%
V8 Version 7 ...... 14806

I'm assuming that IM is on by default?

[streetwolf]

Ran same tests on the respin of IM.

SunSpider 0.9.1 ..... 122.4ms +/- 2.0%
Kraken 1.1 ...... 1207.4ms +/- 1.9%
V8 Version 7 ...... 15416

[TheVisitor]

It would be much more interesting if you posted benchmarks with a build before, and the build with IM.

I have never taken time to benchmark builds, so I can't really tell how much/less improvement occurred with the landing.
The few times I've ran benchmarks my numbers were so below others posted, I gave up and decided my machine was low-end, and don't really worry too much about it as long as it feels smooth and operates without excess jank.