oilshell.org
OSH Parser Performance
We time $sh -n $file
for various files under various shells, and repeat then
run under cachegrind for stable metrics.
Source code: oil/benchmarks/osh-parser.sh
Raw files
Summary
Instructions Per Line (via cachegrind)
Lower numbers are generally better, but each shell recognizes a different
language, and OSH uses a more thorough parsing algorithm. In thousands of
"I refs".
shell label |
total lines |
thousand irefs per line |
bash |
118,863 |
15.1 |
dash |
111,674 |
2.3 |
osh-native |
118,863 |
13.3 |
(zsh isn't measured because zsh -n
unexpectedly forks.)
Average Parsing Rate, Measured on Two Machines (lines/ms)
Shell startup time is included in the elapsed time measurements, but long files
are chosen to minimize its effect.
shell label |
total lines |
host no-host |
dash |
111,674 |
2,713 |
bash |
118,863 |
686 |
osh-native |
118,863 |
454 |
osh-cpython |
118,863 |
12 |
Per-File Measurements
Time and Memory
shell label |
elapsed ms |
user ms |
sys ms |
max rss MB |
num lines |
filename |
dash |
2 |
2 |
0 |
1 |
2,698 |
Build.sh |
bash |
5 |
5 |
0 |
3 |
2,698 |
Build.sh |
osh-native |
8 |
8 |
0 |
8 |
2,698 |
Build.sh |
osh-cpython |
259 |
227 |
32 |
20 |
2,698 |
Build.sh |
dash |
2 |
0 |
2 |
1 |
2,512 |
abuild |
bash |
5 |
5 |
0 |
3 |
2,512 |
abuild |
osh-native |
8 |
8 |
0 |
8 |
2,512 |
abuild |
osh-cpython |
363 |
347 |
16 |
21 |
2,512 |
abuild |
dash |
8 |
4 |
4 |
2 |
20,489 |
configure |
bash |
32 |
32 |
0 |
3 |
20,489 |
configure |
osh-native |
43 |
34 |
9 |
21 |
20,489 |
configure |
osh-cpython |
1,770 |
1,741 |
28 |
42 |
20,489 |
configure |
dash |
21 |
21 |
0 |
2 |
69,779 |
configure-coreutils |
bash |
82 |
78 |
4 |
3 |
69,779 |
configure-coreutils |
osh-native |
145 |
116 |
28 |
51 |
69,779 |
configure-coreutils |
osh-cpython |
4,977 |
4,909 |
68 |
86 |
69,779 |
configure-coreutils |
bash |
5 |
5 |
0 |
3 |
2,029 |
configure-helper.sh |
osh-native |
6 |
6 |
0 |
8 |
2,029 |
configure-helper.sh |
osh-cpython |
253 |
221 |
31 |
20 |
2,029 |
configure-helper.sh |
dash |
1 |
1 |
0 |
1 |
1,733 |
functions |
bash |
4 |
0 |
4 |
3 |
1,733 |
functions |
osh-native |
7 |
7 |
0 |
8 |
1,733 |
functions |
osh-cpython |
239 |
230 |
8 |
20 |
1,733 |
functions |
dash |
4 |
0 |
4 |
2 |
9,661 |
ltmain.sh |
bash |
17 |
17 |
0 |
4 |
9,661 |
ltmain.sh |
osh-native |
20 |
16 |
4 |
15 |
9,661 |
ltmain.sh |
osh-cpython |
822 |
790 |
32 |
28 |
9,661 |
ltmain.sh |
dash |
1 |
1 |
0 |
1 |
1,679 |
t4014-format-patch.sh |
bash |
3 |
0 |
3 |
3 |
1,679 |
t4014-format-patch.sh |
osh-native |
4 |
4 |
0 |
7 |
1,679 |
t4014-format-patch.sh |
osh-cpython |
91 |
71 |
20 |
18 |
1,679 |
t4014-format-patch.sh |
dash |
1 |
1 |
0 |
1 |
3,123 |
t9300-fast-import.sh |
osh-native |
4 |
4 |
0 |
7 |
3,123 |
t9300-fast-import.sh |
bash |
5 |
5 |
0 |
3 |
3,123 |
t9300-fast-import.sh |
osh-cpython |
98 |
74 |
24 |
18 |
3,123 |
t9300-fast-import.sh |
bash |
15 |
12 |
4 |
3 |
5,160 |
test-cmd-util.sh |
osh-native |
18 |
14 |
4 |
12 |
5,160 |
test-cmd-util.sh |
osh-cpython |
737 |
688 |
49 |
26 |
5,160 |
test-cmd-util.sh |
Instruction Counts
shell label |
irefs |
num lines |
filename |
dash |
6,416,010 |
2,698 |
Build.sh |
bash |
35,958,882 |
2,698 |
Build.sh |
osh-native |
37,905,352 |
2,698 |
Build.sh |
dash |
7,042,147 |
2,512 |
abuild |
bash |
43,761,475 |
2,512 |
abuild |
osh-native |
45,790,361 |
2,512 |
abuild |
dash |
53,261,640 |
20,489 |
configure |
osh-native |
279,173,496 |
20,489 |
configure |
bash |
349,702,388 |
20,489 |
configure |
dash |
151,770,612 |
69,779 |
configure-coreutils |
bash |
886,197,417 |
69,779 |
configure-coreutils |
osh-native |
904,397,795 |
69,779 |
configure-coreutils |
osh-native |
30,989,961 |
2,029 |
configure-helper.sh |
bash |
47,119,375 |
2,029 |
configure-helper.sh |
dash |
4,652,224 |
1,733 |
functions |
bash |
28,169,399 |
1,733 |
functions |
osh-native |
29,258,194 |
1,733 |
functions |
dash |
23,597,230 |
9,661 |
ltmain.sh |
osh-native |
114,627,369 |
9,661 |
ltmain.sh |
bash |
172,930,991 |
9,661 |
ltmain.sh |
dash |
3,166,564 |
1,679 |
t4014-format-patch.sh |
osh-native |
11,930,617 |
1,679 |
t4014-format-patch.sh |
bash |
25,314,918 |
1,679 |
t4014-format-patch.sh |
dash |
4,357,271 |
3,123 |
t9300-fast-import.sh |
osh-native |
14,037,039 |
3,123 |
t9300-fast-import.sh |
bash |
41,138,083 |
3,123 |
t9300-fast-import.sh |
osh-native |
113,867,691 |
5,160 |
test-cmd-util.sh |
bash |
161,950,200 |
5,160 |
test-cmd-util.sh |
Shell and Host Details
Raw Data