$ ../python.default -m perf compare_to default.json patched.json -G --min-speed=2
Slower (6):
- chameleon: 23.6 ms +- 0.3 ms -> 24.9 ms +- 0.4 ms: 1.06x slower (+6%)
- scimark_monte_carlo: 227 ms +- 4 ms -> 238 ms +- 6 ms: 1.05x slower (+5%)
- telco: 16.3 ms +- 0.4 ms -> 16.9 ms +- 0.4 ms: 1.03x slower (+3%)
- call_method_slots: 11.6 ms +- 0.2 ms -> 12.0 ms +- 0.1 ms: 1.03x slower (+3%)
- sympy_expand: 829 ms +- 10 ms -> 849 ms +- 8 ms: 1.02x slower (+2%)
- genshi_text: 75.0 ms +- 0.8 ms -> 76.5 ms +- 1.0 ms: 1.02x slower (+2%)
Faster (9):
- call_simple: 12.3 ms +- 0.5 ms -> 11.5 ms +- 0.4 ms: 1.06x faster (-6%)
- unpack_sequence: 121 ns +- 2 ns -> 115 ns +- 0 ns: 1.05x faster (-5%)
- spectral_norm: 246 ms +- 4 ms -> 235 ms +- 3 ms: 1.05x faster (-5%)
- logging_silent: 624 ns +- 10 ns -> 599 ns +- 7 ns: 1.04x faster (-4%)
- scimark_fft: 688 ms +- 15 ms -> 667 ms +- 16 ms: 1.03x faster (-3%)
- scimark_lu: 331 ms +- 13 ms -> 324 ms +- 10 ms: 1.02x faster (-2%)
- xml_etree_process: 186 ms +- 3 ms -> 182 ms +- 3 ms: 1.02x faster (-2%)
- scimark_sparse_mat_mult: 8.35 ms +- 0.23 ms -> 8.18 ms +- 0.27 ms: 1.02x faster (-2%)
- unpickle_list: 6.63 us +- 0.14 us -> 6.50 us +- 0.05 us: 1.02x faster (-2%)
$ perf stat /home/inada-n/work/hg/cpython/bench/venv/cpython3.7-4c666deb0f00/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_chameleon.py
.....................
chameleon: Median +- std dev: 23.4 ms +- 0.3 ms
Performance counter stats for '/home/inada-n/work/hg/cpython/bench/venv/cpython3.7-4c666deb0f00/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_chameleon.py':
15284.006825 task-clock (msec) # 0.702 CPUs utilized
330 context-switches # 0.022 K/sec
96 cpu-migrations # 0.006 K/sec
222958 page-faults # 0.015 M/sec
67398605237 cycles # 4.410 GHz
24845134550 stalled-cycles-frontend # 36.86% frontend cycles idle
15742758627 stalled-cycles-backend # 23.36% backend cycles idle
104292593477 instructions # 1.55 insn per cycle
# 0.24 stalled cycles per insn
21095641143 branches # 1380.243 M/sec
466281977 branch-misses # 2.21% of all branches
21.777395740 seconds time elapsed
$ perf stat ./venv/cpython3.7- 4c666deb0f00/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_chameleon.py
cpython3.7-4c666deb0f00/ cpython3.7-b7097bf63c48/
inada-n@rinrin:~/work/hg/cpython/bench$ perf stat ./venv/cpython3.7-b7097bf63c48/bin/python ./venv/cpython3.7-b7097bf63c48/lib/python3.7/site-packages/performance/benchmarks/bm_chameleon.py
.....................
chameleon: Median +- std dev: 25.1 ms +- 0.4 ms
Performance counter stats for './venv/cpython3.7-b7097bf63c48/bin/python ./venv/cpython3.7-b7097bf63c48/lib/python3.7/site-packages/performance/benchmarks/bm_chameleon.py':
14444.526171 task-clock (msec) # 0.630 CPUs utilized
325 context-switches # 0.022 K/sec
94 cpu-migrations # 0.007 K/sec
222713 page-faults # 0.015 M/sec
70957487631 cycles # 4.912 GHz
27446441807 stalled-cycles-frontend # 38.68% frontend cycles idle
18035616209 stalled-cycles-backend # 25.42% backend cycles idle
104170544069 instructions # 1.47 insn per cycle
# 0.26 stalled cycles per insn
21098930839 branches # 1460.687 M/sec
505517292 branch-misses # 2.40% of all branches
22.926179783 seconds time elapsed
$ perf stat ./venv/cpython3.7-4c666deb0f00/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_scimark.py monte_carlo
.....................
scimark_monte_carlo: Median +- std dev: 228 ms +- 7 ms
Performance counter stats for './venv/cpython3.7-4c666deb0f00/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_scimark.py monte_carlo':
18652.200745 task-clock (msec) # 0.912 CPUs utilized
323 context-switches # 0.017 K/sec
100 cpu-migrations # 0.005 K/sec
124385 page-faults # 0.007 M/sec
63259168060 cycles # 3.392 GHz
16003935465 stalled-cycles-frontend # 25.30% frontend cycles idle
8594206664 stalled-cycles-backend # 13.59% backend cycles idle
124298662127 instructions # 1.96 insn per cycle
# 0.13 stalled cycles per insn
25097061846 branches # 1345.528 M/sec
340596277 branch-misses # 1.36% of all branches
20.442680505 seconds time elapsed
$ perf stat ./venv/cpython3.7-b7097bf63c48/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_scimark.py monte_carlo
.....................
scimark_monte_carlo: Median +- std dev: 236 ms +- 7 ms
Performance counter stats for './venv/cpython3.7-b7097bf63c48/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_scimark.py monte_carlo':
12626.002575 task-clock (msec) # 0.594 CPUs utilized
325 context-switches # 0.026 K/sec
101 cpu-migrations # 0.008 K/sec
125421 page-faults # 0.010 M/sec
65746030228 cycles # 5.207 GHz
17752308937 stalled-cycles-frontend # 27.00% frontend cycles idle
9920226411 stalled-cycles-backend # 15.09% backend cycles idle
124607208736 instructions # 1.90 insn per cycle
# 0.14 stalled cycles per insn
25175437034 branches # 1993.936 M/sec
373721687 branch-misses # 1.48% of all branches
21.246650886 seconds time elapsed
$ perf stat ./venv/cpython3.7-4c666deb0f00/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_call_simple.py
.....................
call_simple: Median +- std dev: 11.6 ms +- 0.4 ms
Performance counter stats for './venv/cpython3.7-4c666deb0f00/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_call_simple.py':
7665.653102 task-clock (msec) # 0.371 CPUs utilized
325 context-switches # 0.042 K/sec
90 cpu-migrations # 0.012 K/sec
121825 page-faults # 0.016 M/sec
63921884100 cycles # 8.339 GHz
12492231635 stalled-cycles-frontend # 19.54% frontend cycles idle
3324748753 stalled-cycles-backend # 5.20% backend cycles idle
167075935204 instructions # 2.61 insn per cycle
# 0.07 stalled cycles per insn
30192036579 branches # 3938.612 M/sec
94952082 branch-misses # 0.31% of all branches
20.656700170 seconds time elapsed
$ perf stat ./venv/cpython3.7-b7097bf63c48/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_call_simple.py
.....................
call_simple: Median +- std dev: 10.9 ms +- 0.5 ms
Performance counter stats for './venv/cpython3.7-b7097bf63c48/bin/python ./venv/cpython3.7-4c666deb0f00/lib/python3.7/site-packages/performance/benchmarks/bm_call_simple.py':
12654.494284 task-clock (msec) # 0.636 CPUs utilized
331 context-switches # 0.026 K/sec
100 cpu-migrations # 0.008 K/sec
122075 page-faults # 0.010 M/sec
61613222500 cycles # 4.869 GHz
13199953823 stalled-cycles-frontend # 21.42% frontend cycles idle
2931638963 stalled-cycles-backend # 4.76% backend cycles idle
162650472400 instructions # 2.64 insn per cycle
# 0.08 stalled cycles per insn
29357300298 branches # 2319.911 M/sec
91281650 branch-misses # 0.31% of all branches
19.910164010 seconds time elapsed
