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 |
2,666 |
bash |
118,863 |
701 |
osh-native |
118,863 |
427 |
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 |
2 |
2 |
3 |
2,698 |
Build.sh |
osh-native |
8 |
8 |
0 |
8 |
2,698 |
Build.sh |
osh-cpython |
273 |
257 |
16 |
20 |
2,698 |
Build.sh |
dash |
2 |
2 |
0 |
1 |
2,512 |
abuild |
bash |
5 |
3 |
3 |
3 |
2,512 |
abuild |
osh-native |
9 |
9 |
0 |
8 |
2,512 |
abuild |
osh-cpython |
368 |
352 |
16 |
21 |
2,512 |
abuild |
dash |
9 |
8 |
0 |
2 |
20,489 |
configure |
bash |
32 |
32 |
0 |
4 |
20,489 |
configure |
osh-native |
46 |
38 |
8 |
21 |
20,489 |
configure |
osh-cpython |
1,790 |
1,737 |
52 |
42 |
20,489 |
configure |
dash |
22 |
18 |
4 |
1 |
69,779 |
configure-coreutils |
bash |
77 |
73 |
4 |
3 |
69,779 |
configure-coreutils |
osh-native |
156 |
128 |
28 |
51 |
69,779 |
configure-coreutils |
osh-cpython |
5,257 |
5,168 |
88 |
86 |
69,779 |
configure-coreutils |
bash |
6 |
6 |
0 |
3 |
2,029 |
configure-helper.sh |
osh-native |
7 |
3 |
3 |
8 |
2,029 |
configure-helper.sh |
osh-cpython |
256 |
232 |
24 |
20 |
2,029 |
configure-helper.sh |
dash |
2 |
2 |
0 |
1 |
1,733 |
functions |
bash |
4 |
0 |
4 |
3 |
1,733 |
functions |
osh-native |
6 |
6 |
0 |
8 |
1,733 |
functions |
osh-cpython |
254 |
229 |
24 |
20 |
1,733 |
functions |
dash |
4 |
4 |
0 |
2 |
9,661 |
ltmain.sh |
bash |
17 |
13 |
3 |
4 |
9,661 |
ltmain.sh |
osh-native |
21 |
13 |
8 |
15 |
9,661 |
ltmain.sh |
osh-cpython |
847 |
823 |
24 |
28 |
9,661 |
ltmain.sh |
dash |
1 |
1 |
0 |
1 |
1,679 |
t4014-format-patch.sh |
bash |
3 |
3 |
0 |
3 |
1,679 |
t4014-format-patch.sh |
osh-native |
4 |
0 |
4 |
7 |
1,679 |
t4014-format-patch.sh |
osh-cpython |
95 |
75 |
20 |
18 |
1,679 |
t4014-format-patch.sh |
dash |
1 |
1 |
0 |
1 |
3,123 |
t9300-fast-import.sh |
osh-native |
5 |
0 |
5 |
7 |
3,123 |
t9300-fast-import.sh |
bash |
5 |
5 |
0 |
3 |
3,123 |
t9300-fast-import.sh |
osh-cpython |
102 |
77 |
25 |
18 |
3,123 |
t9300-fast-import.sh |
bash |
15 |
15 |
0 |
3 |
5,160 |
test-cmd-util.sh |
osh-native |
18 |
9 |
9 |
12 |
5,160 |
test-cmd-util.sh |
osh-cpython |
752 |
732 |
20 |
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 |
37,910,621 |
2,698 |
Build.sh |
dash |
7,042,147 |
2,512 |
abuild |
bash |
43,761,475 |
2,512 |
abuild |
osh-native |
45,781,283 |
2,512 |
abuild |
dash |
53,261,640 |
20,489 |
configure |
osh-native |
279,145,120 |
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 |
904,237,281 |
69,779 |
configure-coreutils |
osh-native |
30,981,666 |
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 |
29,248,437 |
1,733 |
functions |
dash |
23,597,230 |
9,661 |
ltmain.sh |
osh-native |
114,614,006 |
9,661 |
ltmain.sh |
bash |
172,930,991 |
9,661 |
ltmain.sh |
dash |
3,166,564 |
1,679 |
t4014-format-patch.sh |
osh-native |
11,925,007 |
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 |
14,031,085 |
3,123 |
t9300-fast-import.sh |
bash |
41,138,083 |
3,123 |
t9300-fast-import.sh |
osh-native |
113,852,927 |
5,160 |
test-cmd-util.sh |
bash |
161,950,200 |
5,160 |
test-cmd-util.sh |
Shell and Host Details
Raw Data