Speed improvements in Firefox 3.7a1pre

UrbenLegend · Post by **UrbenLegend** » October 18th, 2009, 11:44 pm

Man anyone feeling the speed difference in page loads between Firefox 3.5.3 and 3.7a1pre? Digg seems to load just as fast in firefox as in chrome. I am not sure if its because I am using a new profile or because of the tracemonkey improvements in the nightlies. Anyone have benchmarks?

Omega X · Post by **Omega X** » October 19th, 2009, 2:05 am

There are a LOT of improvements on Trunk. JavaScript speed is just one of many.

ziru · Post by **ziru** » October 19th, 2009, 11:21 am

Don't see much improvement on JavaScript speed. But it seems that the rendering speed is faster than before.

A few improvements were mentioned in this topic:
viewtopic.php?f=23&t=1528565

Bluefang · Post by **Bluefang** » October 19th, 2009, 12:28 pm

On the V8 Benchmark I've noticed a 200% to 400% performance increase since the recursion tracing landed on trunk.

UrbenLegend · Post by **UrbenLegend** » October 19th, 2009, 12:35 pm

Yeah I've been seeing some increases in dromaeo as well.

Everytime I tell myself I am going to stick to Firefox releases, I always end up shifting back to Minefield again.

Gotta love the bleeding edge.

ziru · Post by **ziru** » October 19th, 2009, 1:43 pm

Bluefang wrote:On the V8 Benchmark I've noticed a 200% to 400% performance increase since the recursion tracing landed on trunk.

Little idea of how FF scored on V8 Benchmark before. I heard that the score was bad mainly because of recursion tracing.

Tried to run V8 benchmark just now. Quite sad to see that FF trunk scores only 398, while Chromium scores 2771 on the same machine. Has the recursion tracing landed for Win?

UrbenLegend · Post by **UrbenLegend** » October 19th, 2009, 1:50 pm

I am getting 538 in the V8 benchmark on a Intel Core 2 Duo 2.53ghz

Omega X · Post by **Omega X** » October 19th, 2009, 3:42 pm

ziru wrote:
Little idea of how FF scored on V8 Benchmark before. I heard that the score was bad mainly because of recursion tracing.

Tried to run V8 benchmark just now. Quite sad to see that FF trunk scores only 398, while Chromium scores 2771 on the same machine. Has the recursion tracing landed for Win?

No, full recursion tracing has not landed yet. Only partial.

Recursion tracing it the only thing stopping Firefox from scoring high on the V8 test.

Bluefang · Post by **Bluefang** » October 19th, 2009, 4:05 pm

ziru wrote:Tried to run V8 benchmark just now. Quite sad to see that FF trunk scores only 398, while Chromium scores 2771 on the same machine. Has the recursion tracing landed for Win?

Not really. The V8 tests were likely designed with V8's features in mind. It was the only JS engine that implemented recursion tracing, and that is what the tests heavily rely on.

geeknik · Post by **geeknik** » October 19th, 2009, 6:06 pm

I can't go back to using 3.5.3. I've got Minefield installed on all of the machines I might need to browse the web on.

teoli2003 · Post by **teoli2003** » October 20th, 2009, 1:04 am

Omega X wrote:Recursion tracing it the only thing stopping Firefox from scoring high on the V8 test.

Unfortunately no, though it would help a lot. It was (and still somewhat is) something needed, but not the only one. A lot of others work has been done (on guards and a few others one; see bug 504587 for details) and some other still need to be done like Polymorphic Inline Caching (bug 518487).

Omega X · Post by **Omega X** » October 20th, 2009, 3:09 pm

Its critical regardless of other tweaks. Recursion tracing is the big win for benchmarketing.

_Dexter_ · Post by **_Dexter_** » October 20th, 2009, 3:28 pm

Score: 1040 on V8 test.

UrbenLegend · Post by **UrbenLegend** » October 20th, 2009, 7:20 pm

streetwolf wrote:Score: 1040 on V8 test.

You must have a beast of a computer. I am only getting 538 on a Intel Core 2 Duo 2.53 ghz.

Omega X · Post by **Omega X** » October 20th, 2009, 8:36 pm

Yes, he does. Poser.

Speed improvements in Firefox 3.7a1pre

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