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 |
(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 |
2,671 |
bash |
118,863 |
688 |
osh-native |
118,863 |
368 |
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 |
8 |
0 |
8 |
8 |
2,698 |
Build.sh |
osh-cpython |
291 |
278 |
12 |
20 |
2,698 |
Build.sh |
dash |
2 |
2 |
0 |
1 |
2,512 |
abuild |
bash |
6 |
6 |
0 |
3 |
2,512 |
abuild |
osh-native |
9 |
9 |
0 |
8 |
2,512 |
abuild |
osh-cpython |
371 |
354 |
16 |
21 |
2,512 |
abuild |
dash |
9 |
6 |
3 |
2 |
20,489 |
configure |
bash |
33 |
33 |
0 |
3 |
20,489 |
configure |
osh-native |
50 |
31 |
19 |
21 |
20,489 |
configure |
osh-cpython |
1,859 |
1,826 |
32 |
42 |
20,489 |
configure |
dash |
21 |
21 |
0 |
1 |
69,779 |
configure-coreutils |
bash |
77 |
77 |
0 |
3 |
69,779 |
configure-coreutils |
osh-native |
189 |
161 |
28 |
52 |
69,779 |
configure-coreutils |
osh-cpython |
5,412 |
5,347 |
64 |
86 |
69,779 |
configure-coreutils |
bash |
6 |
6 |
0 |
3 |
2,029 |
configure-helper.sh |
osh-native |
8 |
7 |
0 |
8 |
2,029 |
configure-helper.sh |
osh-cpython |
275 |
254 |
20 |
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 |
4 |
4 |
8 |
1,733 |
functions |
osh-cpython |
266 |
229 |
37 |
20 |
1,733 |
functions |
dash |
4 |
2 |
2 |
2 |
9,661 |
ltmain.sh |
bash |
17 |
17 |
0 |
4 |
9,661 |
ltmain.sh |
osh-native |
23 |
18 |
5 |
15 |
9,661 |
ltmain.sh |
osh-cpython |
874 |
845 |
28 |
28 |
9,661 |
ltmain.sh |
dash |
1 |
1 |
0 |
1 |
1,679 |
t4014-format-patch.sh |
bash |
4 |
0 |
4 |
3 |
1,679 |
t4014-format-patch.sh |
osh-native |
5 |
5 |
0 |
7 |
1,679 |
t4014-format-patch.sh |
osh-cpython |
100 |
82 |
17 |
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 |
108 |
91 |
16 |
18 |
3,123 |
t9300-fast-import.sh |
bash |
15 |
11 |
4 |
3 |
5,160 |
test-cmd-util.sh |
osh-native |
20 |
20 |
0 |
12 |
5,160 |
test-cmd-util.sh |
osh-cpython |
780 |
748 |
32 |
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 |
37,902,689 |
2,698 |
Build.sh |
dash |
7,042,147 |
2,512 |
abuild |
bash |
43,761,475 |
2,512 |
abuild |
osh-native |
45,788,655 |
2,512 |
abuild |
dash |
53,261,640 |
20,489 |
configure |
osh-native |
279,156,611 |
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 |
889,621,343 |
69,779 |
configure-coreutils |
osh-native |
30,989,219 |
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 |
29,255,556 |
1,733 |
functions |
dash |
23,597,230 |
9,661 |
ltmain.sh |
osh-native |
114,622,559 |
9,661 |
ltmain.sh |
bash |
172,930,991 |
9,661 |
ltmain.sh |
dash |
3,166,564 |
1,679 |
t4014-format-patch.sh |
osh-native |
11,931,666 |
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 |
14,037,897 |
3,123 |
t9300-fast-import.sh |
bash |
41,138,083 |
3,123 |
t9300-fast-import.sh |
osh-native |
113,860,950 |
5,160 |
test-cmd-util.sh |
bash |
161,950,200 |
5,160 |
test-cmd-util.sh |
Shell and Host Details
Raw Data