SUT
                   - OS : Ubuntu 8.04
                   - CPU : Intel Core2 Duo E7300 2.66 Ghz
                   - RAM : 2GB
                   - Source Ver. : SFX is based on 2009.06.14 (git://git.webkit.org/WebKit.git WebKit) ,
                                       Tracemonkey is based on 2009.06.14(http://hg.mozilla.org/mozilla-central)
                   - Test : Run V8 test suite using each javascript shell



Is this a difference of javascript performance between tracemonkey and squirrelfish extreme?
There are 11 times of performance gap. Is it true?

I know SFX has more optimized JITc than tracemonkey's on X86 architecture. However, I think the 11 times is too bigger. It seems there was a mistake. TM wasn't built with jit. I will report this result again.

I report this result to bugzilla. TM: SFX is 11 times faster than TM on V8 test suite. (Link)



1. Squirrelfish Extreme

============================================
RESULTS (means and 95% confidence intervals)
--------------------------------------------
Total:             1949.0ms +/- 16.6%
--------------------------------------------

  v8:              1949.0ms +/- 16.6%
    crypto:         304.1ms +/- 14.5%
    deltablue:      528.5ms +/- 17.6%
    earley-boyer:   370.6ms +/- 16.0%
    raytrace:       303.6ms +/- 16.9%
    richards:       442.2ms +/- 17.9%

2. Tracemonkey

============================================
RESULTS (means and 95% confidence intervals)
--------------------------------------------
Total:             22943.9ms +/- 0.6%
--------------------------------------------

  v8:              22943.9ms +/- 0.6%
    crypto:         1520.3ms +/- 1.4%
    deltablue:     13108.9ms +/- 1.1%
    earley-boyer:   3375.8ms +/- 0.4%
    raytrace:       3604.1ms +/- 0.8%
    richards:       1334.8ms +/- 0.4%