javascript problem in iceweasel 26 - at least on my system

[Georgi Naplatanov]

On 01/07/2014 11:01 PM, Reuss András wrote:
> Hi,
>
> Sorry for disturbing you. I am using debian wheezy 64 bits version on an
> AMD machine and iceweasel version 26 from the wheezy-backports
> repository. I created a little simulation in javascript and I found a
> performance issue with iceweasel. I am not sure that it is a general
> problem or just my system.
> At the beginning, the simulation space is established with about 20.000
> random number generations.
>
> I measured the following results, all on the same machine:
> Chromium Version 31.0.1650.63 Built on Debian 7.2, running on Debian 7.3
> (238485) - ms 340 ms
> Iceweasel 26 on the above system - about 110000 ms
> Firefox 26 on windows xp under virtualbox - about 340 ms
> Chrome latest versioin on windows under virtualbox - about 340 ms
> Firefox for android, latest version - about 3000 ms
>
> I don't know if this performance hit only affects my system or it is an
> Iceweasel javascript engine problem. Would you like to test it?
>
> The aformentioned simulation is accessible:
> http://tinstall.hu/szimulacio/simulation.html
>
> If you need further precisions or data about the issue, please contact me.
>
> Thanks for your patience and attention.
>
> Best regards
> András REUSS

It seems that it affects my system too - Debian 7.3 AMD64.

My numbers are :
  - Iceweasel 26.0 - Generation time: 116250
  - Firefox - Generation time: 37820 (from 
ftp://ftp.mozilla.org/pub/firefox/releases/26.0/linux-x86_64/en-US/firefox-26.0.tar.bz2)
  - Google Chrome - Generation time: 181
  - Chromium - Generation time: 176

Best regards
Georgi