oils.pub
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: oils/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 |
7.3 |
| dash |
111,674 |
2.4 |
| osh-native |
118,863 |
11.1 |
| osh-nosouffle |
118,863 |
12.6 |
(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 |
2,549 |
| bash |
118,863 |
1,202 |
| osh-native |
118,863 |
434 |
| osh-nosouffle |
118,863 |
414 |
| osh-cpython |
118,863 |
9 |
Per-File Measurements
Time and Memory
| shell label |
elapsed ms |
user ms |
sys ms |
max rss MB |
num lines |
filename |
| dash |
2 |
2 |
0 |
2 |
2,698 |
Build.sh |
| bash |
3 |
3 |
0 |
3 |
2,698 |
Build.sh |
| osh-native |
7 |
5 |
3 |
9 |
2,698 |
Build.sh |
| osh-nosouffle |
8 |
4 |
4 |
9 |
2,698 |
Build.sh |
| osh-cpython |
339 |
314 |
26 |
22 |
2,698 |
Build.sh |
| dash |
2 |
1 |
1 |
2 |
2,512 |
abuild |
| bash |
4 |
3 |
1 |
3 |
2,512 |
abuild |
| osh-native |
9 |
6 |
3 |
9 |
2,512 |
abuild |
| osh-nosouffle |
10 |
6 |
4 |
9 |
2,512 |
abuild |
| osh-cpython |
460 |
436 |
24 |
22 |
2,512 |
abuild |
| dash |
9 |
8 |
1 |
2 |
20,489 |
configure |
| bash |
17 |
16 |
1 |
4 |
20,489 |
configure |
| osh-native |
41 |
36 |
5 |
23 |
20,489 |
configure |
| osh-nosouffle |
44 |
32 |
12 |
23 |
20,489 |
configure |
| osh-cpython |
2,300 |
2,256 |
45 |
44 |
20,489 |
configure |
| dash |
23 |
22 |
1 |
2 |
69,779 |
configure-coreutils |
| bash |
43 |
41 |
2 |
3 |
69,779 |
configure-coreutils |
| osh-native |
158 |
135 |
22 |
52 |
69,779 |
configure-coreutils |
| osh-nosouffle |
162 |
133 |
29 |
52 |
69,779 |
configure-coreutils |
| osh-cpython |
6,598 |
6,508 |
88 |
91 |
69,779 |
configure-coreutils |
| bash |
4 |
4 |
0 |
3 |
2,029 |
configure-helper.sh |
| osh-native |
7 |
5 |
2 |
9 |
2,029 |
configure-helper.sh |
| osh-nosouffle |
7 |
4 |
3 |
9 |
2,029 |
configure-helper.sh |
| osh-cpython |
359 |
335 |
23 |
21 |
2,029 |
configure-helper.sh |
| dash |
1 |
0 |
1 |
2 |
1,733 |
functions |
| bash |
3 |
1 |
1 |
3 |
1,733 |
functions |
| osh-native |
7 |
5 |
2 |
8 |
1,733 |
functions |
| osh-nosouffle |
7 |
4 |
3 |
9 |
1,733 |
functions |
| osh-cpython |
323 |
300 |
23 |
21 |
1,733 |
functions |
| dash |
5 |
2 |
2 |
2 |
9,661 |
ltmain.sh |
| bash |
10 |
10 |
0 |
4 |
9,661 |
ltmain.sh |
| osh-native |
20 |
14 |
6 |
15 |
9,661 |
ltmain.sh |
| osh-nosouffle |
22 |
12 |
10 |
16 |
9,661 |
ltmain.sh |
| osh-cpython |
1,085 |
1,059 |
26 |
30 |
9,661 |
ltmain.sh |
| dash |
1 |
0 |
1 |
2 |
1,679 |
t4014-format-patch.sh |
| bash |
2 |
2 |
0 |
3 |
1,679 |
t4014-format-patch.sh |
| osh-native |
4 |
2 |
2 |
7 |
1,679 |
t4014-format-patch.sh |
| osh-nosouffle |
4 |
3 |
1 |
8 |
1,679 |
t4014-format-patch.sh |
| osh-cpython |
122 |
100 |
22 |
19 |
1,679 |
t4014-format-patch.sh |
| dash |
1 |
0 |
1 |
1 |
3,123 |
t9300-fast-import.sh |
| bash |
3 |
1 |
2 |
3 |
3,123 |
t9300-fast-import.sh |
| osh-native |
4 |
4 |
0 |
8 |
3,123 |
t9300-fast-import.sh |
| osh-nosouffle |
4 |
3 |
2 |
8 |
3,123 |
t9300-fast-import.sh |
| osh-cpython |
122 |
105 |
17 |
19 |
3,123 |
t9300-fast-import.sh |
| bash |
11 |
8 |
3 |
3 |
5,160 |
test-cmd-util.sh |
| osh-native |
17 |
12 |
5 |
12 |
5,160 |
test-cmd-util.sh |
| osh-nosouffle |
19 |
13 |
6 |
13 |
5,160 |
test-cmd-util.sh |
| osh-cpython |
954 |
927 |
27 |
28 |
5,160 |
test-cmd-util.sh |
Instruction Counts
| shell label |
irefs |
num lines |
filename |
| dash |
6,684,258 |
2,698 |
Build.sh |
| bash |
19,403,577 |
2,698 |
Build.sh |
| osh-native |
31,595,383 |
2,698 |
Build.sh |
| osh-nosouffle |
35,843,165 |
2,698 |
Build.sh |
| dash |
7,346,197 |
2,512 |
abuild |
| bash |
23,586,858 |
2,512 |
abuild |
| osh-native |
44,713,470 |
2,512 |
abuild |
| osh-nosouffle |
52,278,141 |
2,512 |
abuild |
| dash |
55,988,490 |
20,489 |
configure |
| bash |
166,013,802 |
20,489 |
configure |
| osh-native |
231,139,489 |
20,489 |
configure |
| osh-nosouffle |
263,055,825 |
20,489 |
configure |
| dash |
161,016,284 |
69,779 |
configure-coreutils |
| bash |
440,767,942 |
69,779 |
configure-coreutils |
| osh-native |
748,359,375 |
69,779 |
configure-coreutils |
| osh-nosouffle |
837,534,184 |
69,779 |
configure-coreutils |
| bash |
22,799,636 |
2,029 |
configure-helper.sh |
| osh-native |
25,983,432 |
2,029 |
configure-helper.sh |
| osh-nosouffle |
30,261,597 |
2,029 |
configure-helper.sh |
| dash |
4,811,799 |
1,733 |
functions |
| bash |
15,312,098 |
1,733 |
functions |
| osh-native |
24,468,764 |
1,733 |
functions |
| osh-nosouffle |
28,857,633 |
1,733 |
functions |
| dash |
24,904,718 |
9,661 |
ltmain.sh |
| bash |
80,310,064 |
9,661 |
ltmain.sh |
| osh-native |
96,272,511 |
9,661 |
ltmain.sh |
| osh-nosouffle |
112,483,351 |
9,661 |
ltmain.sh |
| dash |
3,294,377 |
1,679 |
t4014-format-patch.sh |
| osh-native |
10,061,840 |
1,679 |
t4014-format-patch.sh |
| osh-nosouffle |
11,036,766 |
1,679 |
t4014-format-patch.sh |
| bash |
11,082,677 |
1,679 |
t4014-format-patch.sh |
| dash |
4,585,030 |
3,123 |
t9300-fast-import.sh |
| osh-native |
11,866,280 |
3,123 |
t9300-fast-import.sh |
| osh-nosouffle |
13,016,711 |
3,123 |
t9300-fast-import.sh |
| bash |
16,659,503 |
3,123 |
t9300-fast-import.sh |
| bash |
73,195,614 |
5,160 |
test-cmd-util.sh |
| osh-native |
96,177,303 |
5,160 |
test-cmd-util.sh |
| osh-nosouffle |
112,284,431 |
5,160 |
test-cmd-util.sh |
Shell and Host Details
Raw Data