[webkit-reviews] review requested: [Bug 80014] DFG local CSE for a node can be terminated earlier : [Attachment 129662] patch
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Mar 1 01:21:16 PST 2012
Yuqiang Xian <yuqiang.xian at intel.com> has asked for review:
Bug 80014: DFG local CSE for a node can be terminated earlier
https://bugs.webkit.org/show_bug.cgi?id=80014
Attachment 129662: patch
https://bugs.webkit.org/attachment.cgi?id=129662&action=review
------- Additional Comments from Yuqiang Xian <yuqiang.xian at intel.com>
Performance neutral on SunSpider, V8 and Kraken.
Collected 12 samples per benchmark/VM, with 4 VM invocations per benchmark.
Emitted a call to gc() between sample
measurements. Used 1 benchmark iteration per VM invocation for warm-up. Used
the jsc-specific preciseTime()
function to get microsecond-level timing. Reporting benchmark execution times
with 95% confidence intervals in
milliseconds.
ToT 80014
SunSpider:
3d-cube 8.2738+-0.0353
8.2301+-0.0563
3d-morph 10.2796+-1.4343
9.6136+-0.0313 might be 1.0693x faster
3d-raytrace 11.0725+-0.9814
10.4138+-0.0440 might be 1.0632x faster
access-binary-trees 2.4162+-0.0410
2.3782+-0.0361 might be 1.0160x faster
access-fannkuch 10.2832+-0.0330 ?
10.2954+-0.0425 ?
access-nbody 5.4756+-0.0298
5.4618+-0.0295
access-nsieve 3.9493+-0.0242 ?
3.9842+-0.0311 ?
bitops-3bit-bits-in-byte 1.2317+-0.0311 ?
1.2399+-0.0296 ?
bitops-bits-in-byte 4.6308+-0.0328 ?
4.6579+-0.0509 ?
bitops-bitwise-and 4.2234+-0.0316
4.2182+-0.0432
bitops-nsieve-bits 4.3899+-0.3781
4.2256+-0.0175 might be 1.0389x faster
controlflow-recursive 2.7894+-0.0347 ?
2.7986+-0.0338 ?
crypto-aes 9.7159+-0.1013 ?
10.5690+-1.2842 ? might be 1.0878x slower
crypto-md5 3.4543+-0.0349
3.4355+-0.0376
crypto-sha1 2.7817+-0.0356 ?
2.7985+-0.0392 ?
date-format-tofte 12.8141+-0.0429 ?
13.7343+-1.4600 ? might be 1.0718x slower
date-format-xparb 11.9026+-0.3037
11.8689+-0.0892
math-cordic 3.9316+-0.0467 ?
3.9752+-0.0324 ? might be 1.0111x slower
math-partial-sums 14.8843+-0.0637
14.8552+-0.0492
math-spectral-norm 2.6706+-0.0337
2.6667+-0.0376
regexp-dna 9.3694+-0.0691
9.3647+-0.0505
string-base64 5.5776+-0.0453 ?
5.6318+-0.0409 ?
string-fasta 9.4847+-0.0408
9.4238+-0.0588
string-tagcloud 16.1147+-0.0385
16.0927+-0.0581
string-unpack-code 27.4101+-0.2297 ?
27.4592+-0.0953 ?
string-validate-input 8.3594+-0.0566
8.3010+-0.0346
<arithmetic> * 7.9802+-0.0902 ?
7.9882+-0.0704 ? might be 1.0010x slower
<geometric> 6.2931+-0.0599
6.2917+-0.0331 might be 1.0002x faster
<harmonic> 4.8742+-0.0378
4.8738+-0.0156 might be 1.0001x faster
ToT 80014
V8:
crypto 94.7222+-0.6127
94.3364+-0.1624
deltablue 167.5102+-1.5407
166.1025+-1.0373
earley-boyer 120.8037+-2.9029 ?
121.9013+-2.8339 ?
raytrace 59.9594+-0.7856
58.9291+-0.3481 might be 1.0175x faster
regexp 111.0411+-0.6099 ?
111.5218+-0.6567 ?
richards 190.1924+-0.4228
189.7350+-0.5080
splay 77.8327+-0.6798
77.0769+-0.2385
<arithmetic> 117.4374+-0.6452
117.0861+-0.5871 might be 1.0030x faster
<geometric> * 109.5003+-0.6401
109.0575+-0.5577 might be 1.0041x faster
<harmonic> 102.0258+-0.6461
101.4286+-0.5071 might be 1.0059x faster
ToT 80014
Kraken:
ai-astar 784.0337+-1.2429 ?
785.9269+-1.9518 ?
audio-beat-detection 237.0179+-0.2599 !
237.7329+-0.3846 ! definitely 1.0030x slower
audio-dft 387.1959+-3.4243 ?
388.8320+-3.7839 ?
audio-fft 152.0611+-1.0486
151.3095+-0.1807
audio-oscillator 345.9121+-1.9871 ?
346.2906+-2.4266 ?
imaging-darkroom 375.5057+-9.0815 ?
377.0849+-10.1587 ?
imaging-desaturate 304.5204+-1.5808
303.5016+-0.6957
imaging-gaussian-blur 507.3724+-1.6954
507.3209+-1.5560
json-parse-financial 86.7866+-0.4406 ?
87.7147+-0.5420 ? might be 1.0107x slower
json-stringify-tinderbox 105.6743+-0.5484
105.4368+-0.6363
stanford-crypto-aes 105.9003+-0.5528
105.5189+-0.3627
stanford-crypto-ccm 100.7187+-0.8381
100.0919+-0.7498
stanford-crypto-pbkdf2 237.7638+-2.1886
235.6427+-0.4011
stanford-crypto-sha256-iterative 103.2649+-0.7613 ?
103.9360+-1.4175 ?
<arithmetic> * 273.8377+-1.0482 ?
274.0243+-1.1220 ? might be 1.0007x slower
<geometric> 217.4013+-0.7602 ?
217.4395+-0.8597 ? might be 1.0002x slower
<harmonic> 175.6196+-0.5666 ?
175.6745+-0.6949 ? might be 1.0003x slower
ToT 80014
All benchmarks:
<arithmetic> 103.4740+-0.4113 ?
103.4816+-0.3955 ? might be 1.0001x slower
<geometric> 27.6609+-0.1844
27.6424+-0.0895 might be 1.0007x faster
<harmonic> 8.5727+-0.0653
8.5714+-0.0268 might be 1.0002x faster
ToT 80014
Geomean of preferred means:
<scaled-result> 62.0820+-0.3918
62.0323+-0.2147 might be 1.0008x faster
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