Author haypo
Recipients Yury.Selivanov, haypo, jtaylor, pitrou, rhettinger, serhiy.storchaka, yselivanov
Date 2016-02-02.13:40:34
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Marked as misclassified Yes
Message-id <1454420435.66.0.476821586679.issue26249@psf.upfronthosting.co.za>
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Content
FYI benchmark result to compare Python with and without pymalloc (fast memory allocator for block <= 512 bytes). As expected, no pymalloc is slower, up to 30% slower (and it's never faster).

Report on Linux smithers 4.3.3-300.fc23.x86_64 #1 SMP Tue Jan 5 23:31:01 UTC 2016 x86_64 x86_64
Total CPU cores: 8

### 2to3 ###
7.253671 -> 7.558993: 1.04x slower

### chameleon_v2 ###
Min: 5.598481 -> 5.794526: 1.04x slower
Avg: 5.714233 -> 5.922142: 1.04x slower
Significant (t=-8.01)
Stddev: 0.15956 -> 0.09048: 1.7636x smaller

### django_v3 ###
Min: 0.574221 -> 0.606462: 1.06x slower
Avg: 0.579659 -> 0.612088: 1.06x slower
Significant (t=-28.44)
Stddev: 0.00605 -> 0.00532: 1.1371x smaller

### fastpickle ###
Min: 0.450852 -> 0.502645: 1.11x slower
Avg: 0.455619 -> 0.513777: 1.13x slower
Significant (t=-26.24)
Stddev: 0.00696 -> 0.01404: 2.0189x larger

### fastunpickle ###
Min: 0.544064 -> 0.696306: 1.28x slower
Avg: 0.552459 -> 0.705372: 1.28x slower
Significant (t=-85.52)
Stddev: 0.00798 -> 0.00980: 1.2281x larger

### json_dump_v2 ###
Min: 2.780312 -> 3.265531: 1.17x slower
Avg: 2.830463 -> 3.370060: 1.19x slower
Significant (t=-23.73)
Stddev: 0.04190 -> 0.15521: 3.7046x larger

### json_load ###
Min: 0.428893 -> 0.558956: 1.30x slower
Avg: 0.431941 -> 0.569441: 1.32x slower
Significant (t=-74.76)
Stddev: 0.00791 -> 0.01033: 1.3060x larger

### regex_v8 ###
Min: 0.043439 -> 0.044614: 1.03x slower
Avg: 0.044388 -> 0.046487: 1.05x slower
Significant (t=-4.95)
Stddev: 0.00215 -> 0.00209: 1.0283x smaller

### tornado_http ###
Min: 0.264603 -> 0.278840: 1.05x slower
Avg: 0.270153 -> 0.285263: 1.06x slower
Significant (t=-23.04)
Stddev: 0.00489 -> 0.00436: 1.1216x smaller

The following not significant results are hidden, use -v to show them:
nbody.
History
Date User Action Args
2016-02-02 13:40:35hayposetrecipients: + haypo, rhettinger, pitrou, Yury.Selivanov, jtaylor, serhiy.storchaka, yselivanov
2016-02-02 13:40:35hayposetmessageid: <1454420435.66.0.476821586679.issue26249@psf.upfronthosting.co.za>
2016-02-02 13:40:35haypolinkissue26249 messages
2016-02-02 13:40:34haypocreate