The one that’s faster on everything except date, regex and some string is google chrome.

Test was sunspider-0.9. Of course, this is a firefox nightly build, so it may well improve, but then so may Chrome.

My Mistake. Actually the figures below are with jit not enabled. I enabled it and tried to rerun the test. It was looking as if it would be even faster than Chrome, but then half way through it crashed the entire browser. Oh well.

Rant On A Related Note: does saying 1.49x as fast make any sense? Fastness isn’t a measure unless you mean velocity, which doesn’t have an obvious meaning in this case, since there is no reliable measure of the ground to be covered. The measure that makes sense is how long something takes, so 2x slower makes sense – it takes twice the time. Saying 2x faster implies that there is some measure of fastness that has increased. It seems to me that logically, fastness is a measure of the time it didn’t take, not 1 over the time it did take. Of course, the time it didn’t take is so large as to be unusable as a way of thinking, so maybe we could stick with things like “took half the time”, or maybe even “half as slow”, rather than these imaginary “fastness” measures.

TEST COMPARISON FROM TO DETAILS
=============================================================================
** TOTAL **: 1.49x as fast 7574.0ms +/- 5.2% 5081.8ms +/- 7.2% significant
=============================================================================
3d: 2.47x as fast 917.8ms +/- 6.4% 371.4ms +/- 7.3% significant
cube: 3.26x as fast 319.2ms +/- 9.1% 97.8ms +/- 17.3% significant
morph: 1.75x as fast 266.2ms +/- 1.3% 151.8ms +/- 9.7% significant
raytrace: 2.73x as fast 332.4ms +/- 8.4% 121.8ms +/- 21.2% significant
access: 4.31x as fast 1148.2ms +/- 5.4% 266.6ms +/- 14.8% significant
binary-trees: 8.38x as fast 145.8ms +/- 23.3% 17.4ms +/- 10.8% significant
fannkuch: 5.87x as fast 517.4ms +/- 3.9% 88.2ms +/- 17.2% significant
nbody: 3.36x as fast 349.2ms +/- 4.0% 103.8ms +/- 22.3% significant
nsieve: 2.37x as fast 135.8ms +/- 11.5% 57.2ms +/- 14.3% significant
bitops: 4.65x as fast 887.4ms +/- 2.1% 191.0ms +/- 10.4% significant
3bit-bits-in-byte: 13.1x as fast 193.8ms +/- 6.1% 14.8ms +/- 11.0% significant
bits-in-byte: 6.09x as fast 201.0ms +/- 4.1% 33.0ms +/- 9.6% significant
bitwise-and: 3.52x as fast 198.8ms +/- 5.6% 56.4ms +/- 17.7% significant
nsieve-bits: 3.38x as fast 293.8ms +/- 5.9% 86.8ms +/- 13.1% significant
controlflow: 11.3x as fast 113.0ms +/- 4.2% 10.0ms +/- 0.0% significant
recursive: 11.3x as fast 113.0ms +/- 4.2% 10.0ms +/- 0.0% significant
crypto: 3.00x as fast 537.2ms +/- 7.1% 179.0ms +/- 18.4% significant
aes: 2.95x as fast 193.4ms +/- 6.1% 65.6ms +/- 27.4% significant
md5: 2.91x as fast 172.4ms +/- 15.9% 59.2ms +/- 19.3% significant
sha1: 3.16x as fast 171.4ms +/- 7.0% 54.2ms +/- 18.1% significant
date: *1.39x as slow* 632.4ms +/- 6.2% 880.2ms +/- 8.0% significant
format-tofte: *1.42x as slow* 373.2ms +/- 5.1% 529.4ms +/- 5.8% significant
format-xparb: *1.35x as slow* 259.2ms +/- 8.7% 350.8ms +/- 12.6% significant
math: 2.69x as fast 931.0ms +/- 7.1% 345.8ms +/- 11.3% significant
cordic: 2.19x as fast 417.6ms +/- 5.9% 190.8ms +/- 16.9% significant
partial-sums: 2.81x as fast 328.0ms +/- 15.4% 116.8ms +/- 18.0% significant
spectral-norm: 4.85x as fast 185.4ms +/- 7.8% 38.2ms +/- 7.4% significant
regexp: *1.90x as slow* 618.8ms +/- 15.4% 1177.0ms +/- 6.2% significant
dna: *1.90x as slow* 618.8ms +/- 15.4% 1177.0ms +/- 6.2% significant
string: 1.08x as fast 1788.2ms +/- 4.2% 1660.8ms +/- 8.0% significant
base64: *1.21x as slow* 161.6ms +/- 7.9% 195.0ms +/- 13.2% significant
fasta: 2.08x as fast 363.0ms +/- 7.3% 174.6ms +/- 11.5% significant
tagcloud: *1.39x as slow* 331.8ms +/- 1.7% 460.2ms +/- 9.4% significant
unpack-code: 1.20x as fast 702.2ms +/- 5.4% 584.4ms +/- 12.2% significant
validate-input: ?? 229.6ms +/- 9.7% 246.6ms +/- 10.2% not conclusive: might be *1.07x as slow*