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 |
13.2 |
| osh-native-souffle |
118,863 |
11.5 |
(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 |
2,681 |
| bash |
118,863 |
708 |
| osh-native-souffle |
118,863 |
475 |
| osh-native |
118,863 |
434 |
| 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 |
0 |
2 |
1 |
2,698 |
Build.sh |
| bash |
5 |
5 |
0 |
3 |
2,698 |
Build.sh |
| osh-native-souffle |
7 |
0 |
7 |
8 |
2,698 |
Build.sh |
| osh-native |
7 |
4 |
4 |
8 |
2,698 |
Build.sh |
| osh-cpython |
270 |
253 |
16 |
21 |
2,698 |
Build.sh |
| dash |
2 |
2 |
0 |
1 |
2,512 |
abuild |
| bash |
5 |
5 |
0 |
3 |
2,512 |
abuild |
| osh-native-souffle |
8 |
8 |
0 |
8 |
2,512 |
abuild |
| osh-native |
9 |
4 |
4 |
8 |
2,512 |
abuild |
| osh-cpython |
366 |
337 |
28 |
22 |
2,512 |
abuild |
| dash |
9 |
9 |
0 |
2 |
20,489 |
configure |
| bash |
32 |
32 |
0 |
4 |
20,489 |
configure |
| osh-native-souffle |
40 |
28 |
12 |
20 |
20,489 |
configure |
| osh-native |
43 |
30 |
13 |
21 |
20,489 |
configure |
| osh-cpython |
1,771 |
1,735 |
36 |
42 |
20,489 |
configure |
| dash |
21 |
21 |
0 |
2 |
69,779 |
configure-coreutils |
| bash |
76 |
76 |
0 |
3 |
69,779 |
configure-coreutils |
| osh-native-souffle |
139 |
106 |
33 |
50 |
69,779 |
configure-coreutils |
| osh-native |
156 |
133 |
23 |
46 |
69,779 |
configure-coreutils |
| osh-cpython |
5,257 |
5,200 |
57 |
86 |
69,779 |
configure-coreutils |
| bash |
6 |
3 |
3 |
3 |
2,029 |
configure-helper.sh |
| osh-native-souffle |
6 |
6 |
0 |
8 |
2,029 |
configure-helper.sh |
| osh-native |
6 |
3 |
3 |
8 |
2,029 |
configure-helper.sh |
| osh-cpython |
262 |
245 |
16 |
21 |
2,029 |
configure-helper.sh |
| dash |
1 |
1 |
0 |
1 |
1,733 |
functions |
| bash |
4 |
4 |
0 |
3 |
1,733 |
functions |
| osh-native-souffle |
6 |
6 |
0 |
8 |
1,733 |
functions |
| osh-native |
6 |
6 |
0 |
8 |
1,733 |
functions |
| osh-cpython |
253 |
240 |
12 |
20 |
1,733 |
functions |
| dash |
4 |
4 |
0 |
2 |
9,661 |
ltmain.sh |
| bash |
16 |
8 |
8 |
4 |
9,661 |
ltmain.sh |
| osh-native-souffle |
20 |
20 |
0 |
15 |
9,661 |
ltmain.sh |
| osh-native |
20 |
8 |
12 |
15 |
9,661 |
ltmain.sh |
| osh-cpython |
844 |
800 |
44 |
28 |
9,661 |
ltmain.sh |
| dash |
1 |
1 |
0 |
1 |
1,679 |
t4014-format-patch.sh |
| osh-native-souffle |
4 |
0 |
4 |
7 |
1,679 |
t4014-format-patch.sh |
| osh-native |
4 |
0 |
4 |
7 |
1,679 |
t4014-format-patch.sh |
| bash |
4 |
4 |
0 |
3 |
1,679 |
t4014-format-patch.sh |
| osh-cpython |
94 |
77 |
16 |
18 |
1,679 |
t4014-format-patch.sh |
| dash |
1 |
1 |
0 |
1 |
3,123 |
t9300-fast-import.sh |
| osh-native-souffle |
4 |
4 |
0 |
7 |
3,123 |
t9300-fast-import.sh |
| osh-native |
4 |
0 |
4 |
7 |
3,123 |
t9300-fast-import.sh |
| bash |
5 |
5 |
0 |
3 |
3,123 |
t9300-fast-import.sh |
| osh-cpython |
98 |
74 |
24 |
19 |
3,123 |
t9300-fast-import.sh |
| bash |
15 |
15 |
0 |
3 |
5,160 |
test-cmd-util.sh |
| osh-native-souffle |
16 |
16 |
0 |
12 |
5,160 |
test-cmd-util.sh |
| osh-native |
18 |
4 |
14 |
12 |
5,160 |
test-cmd-util.sh |
| osh-cpython |
784 |
747 |
36 |
27 |
5,160 |
test-cmd-util.sh |
Instruction Counts
| shell label |
irefs |
num lines |
filename |
| dash |
6,416,010 |
2,698 |
Build.sh |
| osh-native-souffle |
32,912,441 |
2,698 |
Build.sh |
| bash |
35,958,882 |
2,698 |
Build.sh |
| osh-native |
37,382,817 |
2,698 |
Build.sh |
| dash |
7,042,147 |
2,512 |
abuild |
| osh-native-souffle |
38,726,972 |
2,512 |
abuild |
| bash |
43,761,475 |
2,512 |
abuild |
| osh-native |
44,982,180 |
2,512 |
abuild |
| dash |
53,261,640 |
20,489 |
configure |
| osh-native-souffle |
241,441,079 |
20,489 |
configure |
| osh-native |
255,026,931 |
20,489 |
configure |
| bash |
349,702,388 |
20,489 |
configure |
| dash |
151,770,612 |
69,779 |
configure-coreutils |
| osh-native-souffle |
782,570,646 |
69,779 |
configure-coreutils |
| bash |
886,197,417 |
69,779 |
configure-coreutils |
| osh-native |
917,378,852 |
69,779 |
configure-coreutils |
| osh-native-souffle |
26,518,393 |
2,029 |
configure-helper.sh |
| osh-native |
30,496,538 |
2,029 |
configure-helper.sh |
| bash |
47,119,375 |
2,029 |
configure-helper.sh |
| dash |
4,652,224 |
1,733 |
functions |
| osh-native-souffle |
24,827,850 |
1,733 |
functions |
| bash |
28,169,399 |
1,733 |
functions |
| osh-native |
28,762,877 |
1,733 |
functions |
| dash |
23,597,230 |
9,661 |
ltmain.sh |
| osh-native-souffle |
97,289,809 |
9,661 |
ltmain.sh |
| osh-native |
112,762,606 |
9,661 |
ltmain.sh |
| bash |
172,930,991 |
9,661 |
ltmain.sh |
| dash |
3,166,564 |
1,679 |
t4014-format-patch.sh |
| osh-native-souffle |
10,818,338 |
1,679 |
t4014-format-patch.sh |
| osh-native |
11,826,350 |
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-souffle |
12,682,193 |
3,123 |
t9300-fast-import.sh |
| osh-native |
13,886,925 |
3,123 |
t9300-fast-import.sh |
| bash |
41,138,083 |
3,123 |
t9300-fast-import.sh |
| osh-native-souffle |
97,273,251 |
5,160 |
test-cmd-util.sh |
| osh-native |
111,887,590 |
5,160 |
test-cmd-util.sh |
| bash |
161,950,200 |
5,160 |
test-cmd-util.sh |
Shell and Host Details
Raw Data