Javascript Performance Thread

[schapel]

Check out the HTML5 vs. Flash challenge. It involves more than just pure JavaScript performance, but shows what can be done with a fast JS engine (and how it might be abused to make dancing, singing ad banners!). Those disks don't look too tasty.

[_Alexander]

Another nice canvas/js game: http://www.phoboslab.org/biolab/.

That is still too slow to be playable.

[t0y]

It was a bit slow at certain places, yes, but I played it all the way through without major issues.

[Fergy]

[quote="t0y"]Another nice canvas/js game: [url]http://www.phoboslab.org/biolab/[/url].[/quote]
That's a great game. Though it doesn't run fast enough yet in Firefox 4 nightlies it does about 14% cpu on Gchrome.

[WonderCsabo]

That biolab game is not working for me at all in Fx4. The progress bar freezes at some point.

Now it works. Very-very slow, unplayable. It quite smooth in Opera 10.62.

[Dorus]

That is 1% a day. A speed they have been holding for over a month now btw. If they hold onto that for another month they will be up and around v8 speed by the time 4.0 is released (Assuming they keep speeding up for at least one more month, and things slow down from there are release comes in sight).

Tbh i half expected things to slow down weeks ago already, but AWFY stills surprises me twice a week.

They wont merge any developments until the release date, just until the code freeze.

Does that makes any different for 4.0? Does that make any difference for AWFY?

@biolab: Works better on 3.6 then a few day old nightly here. Of course I should still try a recent nightly, but even for a few day old nightly it's weird to be slowed then 3.6. Didn't hear any obvious sound problems either.

[WonderCsabo]

I'm not sure what you are asking.

[bzbarsky]

on 3.6 then a few day old nightly here. Of course I should still try a recent nightly, but even for a few day old nightly it's weird to be slowed then 3.6.

Does it work faster for you if you turn off hardware acceleration, perchance? If so, can you please file a bug with your graphics card info from about:support?

[myzar74]

Sand trap doesn't work for me with latest nightly , the game doesn't start and i get this error

18:19:12.977: Exception: aBox is not a constructor Source File: http://gopherwoodstudios.com/sandtrap/sand-trap.htm Line: 7, Column: 0 Category: content javascript

[ioiokzkz]

Apart from the lack of hardware acceleration (slowww FishIE Tank). Javascript seems to be slower on Mac too...

Here my SS result on the same machine,
Win: 380ms v. Mac: 460ms

The heck?

[WonderCsabo]

Other browsers has the same JS speed on your Mac?

[Dorus]

I'm not sure what you are asking.

I didn't understand what you tried to say either

@bzbarsky i'll try that.

[ioiokzkz]

Other browsers has the same JS speed on your Mac?

Chromium(59370) SS result,
Win: 285ms v. Mac: 260ms

[WonderCsabo]

I'm not sure what you are asking.

I didn't understand what you tried to say either

@bzbarsky i'll try that.

Okay. I just told that JM developments will come into the trunk build until the feature freeze.

[Dorus]

Okay. I just told that JM developments will come into the trunk build until the feature freeze.

Ah, you mean like in, they will NOT come in the trunk build any more after code freeze, so the speed-ups will soon halt. Yeah, that made more sense (not sure what i tried to make of it the first time).

Wont they change it into branch builds around that time?