I'm sure there's something wrong here... Firefox 3.0 and Firefox 3.1 perform almost identically, but it is known that 3.1 is orders of magnitude faster than 3.0 because of its new tracing capabilities (hence its name "Tracemonkey"). Is there any chance that these benchmarks were done with FF 3.0 JIT disabled?
Richard Bradshaw No, I was surprised too, and have run them with various different combinations. FF 3.1 has both the JIT options in about:config set to true and I restarted the machine. On these benchmarks it actually performs slightly slower than when they are set to false...
Weird - I'm going to update to the newest nightly today and try again, these benchmarks are with yesterdays nightly build.
Weird - I'm going to update to the newest nightly today and try again, these benchmarks are with yesterdays nightly build.