Python 2.7.6 (14.04) vs 2.6.12 (16.04)

pyperformance.txt

py2-trusty.json
===============

Performance version: 0.3.2
Python version: 2.7.6 (64-bit)
Report on Linux-3.13.0-91-generic-x86_64-with-Ubuntu-14.04-trusty
Number of logical CPUs: 8
Start date: 2016-10-27 15:26:22.221605
End date: 2016-10-27 15:30:12.117654

py2-xenial.json
===============

Performance version: 0.3.2
Python version: 2.7.12 (64-bit)
Report on Linux-4.4.0-38-generic-x86_64-with-debian-stretch-sid
Number of logical CPUs: 8
Start date: 2016-10-27 15:26:53.159285
End date: 2016-10-27 15:31:29.395957

### 2to3 ###
Median +- Std dev: 672 ms +- 60 ms -> 910 ms +- 69 ms: 1.35x slower
Significant (t=-20.50)

### chameleon ###
Median +- Std dev: 18.6 ms +- 4.1 ms -> 31.8 ms +- 3.8 ms: 1.70x slower
Significant (t=-16.95)

### django_template ###
Median +- Std dev: 239 ms +- 38 ms -> 450 ms +- 24 ms: 1.88x slower
Significant (t=-35.55)

### json_dumps ###
Median +- Std dev: 17.4 ms +- 2.7 ms -> 29.8 ms +- 4.4 ms: 1.71x slower
Significant (t=-18.63)

### json_loads ###
Median +- Std dev: 84.8 us +- 15.1 us -> 119.6 us +- 17.8 us: 1.41x slower
Significant (t=-11.06)

### nbody ###
Median +- Std dev: 240 ms +- 25 ms -> 278 ms +- 31 ms: 1.16x slower
Significant (t=-7.54)

### pickle ###
Median +- Std dev: 31.0 us +- 4.8 us -> 47.4 us +- 4.9 us: 1.53x slower
Significant (t=-19.41)

### regex_v8 ###
Median +- Std dev: 50.5 ms +- 7.8 ms -> 70.3 ms +- 6.8 ms: 1.39x slower
Significant (t=-14.64)

### tornado_http ###
Median +- Std dev: 338 ms +- 33 ms -> 505 ms +- 51 ms: 1.49x slower
Significant (t=-21.46)

### unpickle ###
Median +- Std dev: 26.3 us +- 3.7 us -> 37.5 us +- 2.9 us: 1.42x slower
Significant (t=-18.43)