[Webkit-unassigned] [Bug 70418] DFG JIT 32_64 - improve double boxing/unboxing
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Oct 19 07:40:24 PDT 2011
https://bugs.webkit.org/show_bug.cgi?id=70418
--- Comment #3 from Yuqiang Xian <yuqiang.xian at intel.com> 2011-10-19 07:40:25 PST ---
Performance result on Linux IA32 (Core i7 Nehalem) : 29% on Kraken, 7% on SunSpider and 2% on V8. (Against the original 32bit DFG w/o this change)
And with this fix the 32bit DFG performance advantage over the NON-DFG is -
SunSpider:
TEST COMPARISON FROM TO DETAILS
=============================================================================
** TOTAL **: 1.066x as fast 231.0ms +/- 0.8% 216.6ms +/- 1.0% significant
=============================================================================
3d: - 33.1ms +/- 3.9% 32.3ms +/- 4.8%
cube: ?? 12.0ms +/- 10.5% 12.9ms +/- 11.2% not conclusive: might be *1.075x as slow*
morph: - 10.1ms +/- 2.2% 10.0ms +/- 0.0%
raytrace: 1.170x as fast 11.0ms +/- 0.0% 9.4ms +/- 3.9% significant
access: 1.89x as fast 35.3ms +/- 1.4% 18.7ms +/- 3.6% significant
binary-trees: 1.50x as fast 3.0ms +/- 0.0% 2.0ms +/- 0.0% significant
fannkuch: 1.85x as fast 17.4ms +/- 2.1% 9.4ms +/- 3.9% significant
nbody: 2.48x as fast 9.9ms +/- 2.3% 4.0ms +/- 0.0% significant
nsieve: 1.52x as fast 5.0ms +/- 0.0% 3.3ms +/- 10.5% significant
bitops: 1.26x as fast 19.3ms +/- 1.8% 15.3ms +/- 3.2% significant
3bit-bits-in-byte: 2.00x as fast 2.0ms +/- 0.0% 1.0ms +/- 0.0% significant
bits-in-byte: 1.20x as fast 5.3ms +/- 6.5% 4.4ms +/- 8.4% significant
bitwise-and: 1.54x as fast 6.0ms +/- 0.0% 3.9ms +/- 5.8% significant
nsieve-bits: - 6.0ms +/- 0.0% 6.0ms +/- 0.0%
controlflow: ?? 2.0ms +/- 0.0% 2.1ms +/- 10.8% not conclusive: might be *1.050x as slow*
recursive: ?? 2.0ms +/- 0.0% 2.1ms +/- 10.8% not conclusive: might be *1.050x as slow*
crypto: *1.026x as slow* 15.6ms +/- 2.4% 16.0ms +/- 0.0% significant
aes: - 9.0ms +/- 0.0% 9.0ms +/- 0.0%
md5: *1.111x as slow* 3.6ms +/- 10.3% 4.0ms +/- 0.0% significant
sha1: - 3.0ms +/- 0.0% 3.0ms +/- 0.0%
date: *1.109x as slow* 23.0ms +/- 2.5% 25.5ms +/- 1.5% significant
format-tofte: *1.186x as slow* 11.3ms +/- 3.1% 13.4ms +/- 2.8% significant
format-xparb: *1.034x as slow* 11.7ms +/- 3.0% 12.1ms +/- 1.9% significant
math: 1.044x as fast 26.2ms +/- 1.2% 25.1ms +/- 2.1% significant
cordic: *1.073x as slow* 8.2ms +/- 3.7% 8.8ms +/- 3.4% significant
partial-sums: ?? 13.0ms +/- 0.0% 13.3ms +/- 2.6% not conclusive: might be *1.023x as slow*
spectral-norm: 1.67x as fast 5.0ms +/- 0.0% 3.0ms +/- 0.0% significant
regexp: ?? 14.6ms +/- 2.5% 14.9ms +/- 1.5% not conclusive: might be *1.021x as slow*
dna: ?? 14.6ms +/- 2.5% 14.9ms +/- 1.5% not conclusive: might be *1.021x as slow*
string: *1.078x as slow* 61.9ms +/- 0.9% 66.7ms +/- 0.5% significant
base64: - 5.0ms +/- 0.0% 5.0ms +/- 0.0%
fasta: *1.111x as slow* 9.0ms +/- 0.0% 10.0ms +/- 0.0% significant
tagcloud: *1.032x as slow* 15.5ms +/- 2.4% 16.0ms +/- 0.0% significant
unpack-code: *1.130x as slow* 25.4ms +/- 1.5% 28.7ms +/- 1.2% significant
validate-input: - 7.0ms +/- 0.0% 7.0ms +/- 0.0%
Kraken:
TEST COMPARISON FROM TO DETAILS
=============================================================================
** TOTAL **: 1.77x as fast 10101.0ms +/- 0.5% 5712.0ms +/- 0.1% significant
=============================================================================
ai: 2.66x as fast 2145.7ms +/- 1.2% 806.0ms +/- 0.6% significant
astar: 2.66x as fast 2145.7ms +/- 1.2% 806.0ms +/- 0.6% significant
audio: 1.54x as fast 2369.6ms +/- 0.7% 1543.1ms +/- 0.3% significant
beat-detection: 1.64x as fast 693.7ms +/- 1.0% 422.2ms +/- 0.5% significant
dft: 1.51x as fast 609.4ms +/- 1.6% 403.4ms +/- 0.6% significant
fft: 2.12x as fast 533.9ms +/- 0.3% 251.7ms +/- 0.4% significant
oscillator: 1.143x as fast 532.6ms +/- 0.2% 465.8ms +/- 0.2% significant
imaging: 1.90x as fast 4127.1ms +/- 0.2% 2172.9ms +/- 0.2% significant
gaussian-blur: 3.55x as fast 2569.5ms +/- 0.2% 724.2ms +/- 0.2% significant
darkroom: 1.179x as fast 640.5ms +/- 0.8% 543.1ms +/- 0.4% significant
desaturate: 1.013x as fast 917.1ms +/- 0.2% 905.6ms +/- 0.2% significant
json: ?? 194.4ms +/- 0.5% 195.1ms +/- 0.4% not conclusive: might be *1.004x as slow*
parse-financial: 1.009x as fast 82.4ms +/- 0.4% 81.7ms +/- 0.6% significant
stringify-tinderbox: *1.012x as slow* 112.0ms +/- 0.6% 113.4ms +/- 0.7% significant
stanford: 1.27x as fast 1264.2ms +/- 0.6% 994.9ms +/- 0.2% significant
crypto-aes: *1.021x as slow* 164.3ms +/- 1.0% 167.8ms +/- 0.4% significant
crypto-ccm: *1.027x as slow* 137.7ms +/- 0.6% 141.4ms +/- 0.4% significant
crypto-pbkdf2: 1.25x as fast 724.3ms +/- 0.6% 579.9ms +/- 0.4% significant
crypto-sha256-iterative: 2.25x as fast 237.9ms +/- 0.4% 105.8ms +/- 0.4% significant
V8:
w/o DFG -
Richards: 3791
DeltaBlue: 3567
Crypto: 4285
RayTrace: 6387
EarleyBoyer: 6394
RegExp: 1827
Splay: 3960
----
Score (version 6): 4025
w/ DFG -
Richards: 4829
DeltaBlue: 4192
Crypto: 10176
RayTrace: 7731
EarleyBoyer: 6336
RegExp: 1756
Splay: 4563
----
Score (version 6): 5025
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