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 |
12.8 |
(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 |
3,129 |
| bash |
118,863 |
1,374 |
| osh-native |
118,863 |
423 |
| osh-nosouffle |
118,863 |
396 |
| osh-cpython |
118,863 |
11 |
Per-File Measurements
Time and Memory
| shell label |
elapsed ms |
user ms |
sys ms |
max rss MB |
num lines |
filename |
| dash |
1 |
1 |
0 |
2 |
2,698 |
Build.sh |
| bash |
3 |
2 |
1 |
3 |
2,698 |
Build.sh |
| osh-native |
7 |
5 |
2 |
9 |
2,698 |
Build.sh |
| osh-nosouffle |
8 |
7 |
1 |
9 |
2,698 |
Build.sh |
| osh-cpython |
291 |
280 |
10 |
22 |
2,698 |
Build.sh |
| dash |
2 |
1 |
1 |
2 |
2,512 |
abuild |
| bash |
4 |
4 |
0 |
3 |
2,512 |
abuild |
| osh-native |
9 |
7 |
2 |
9 |
2,512 |
abuild |
| osh-nosouffle |
10 |
8 |
2 |
9 |
2,512 |
abuild |
| osh-cpython |
408 |
396 |
11 |
22 |
2,512 |
abuild |
| dash |
7 |
7 |
0 |
2 |
20,489 |
configure |
| bash |
16 |
16 |
0 |
4 |
20,489 |
configure |
| osh-native |
42 |
36 |
6 |
22 |
20,489 |
configure |
| osh-nosouffle |
47 |
39 |
8 |
23 |
20,489 |
configure |
| osh-cpython |
1,928 |
1,896 |
32 |
44 |
20,489 |
configure |
| dash |
18 |
18 |
0 |
2 |
69,779 |
configure-coreutils |
| bash |
38 |
36 |
2 |
4 |
69,779 |
configure-coreutils |
| osh-native |
165 |
148 |
17 |
52 |
69,779 |
configure-coreutils |
| osh-nosouffle |
171 |
146 |
25 |
52 |
69,779 |
configure-coreutils |
| osh-cpython |
5,662 |
5,602 |
59 |
91 |
69,779 |
configure-coreutils |
| bash |
3 |
3 |
0 |
3 |
2,029 |
configure-helper.sh |
| osh-native |
7 |
3 |
3 |
9 |
2,029 |
configure-helper.sh |
| osh-nosouffle |
7 |
6 |
1 |
9 |
2,029 |
configure-helper.sh |
| osh-cpython |
291 |
275 |
17 |
22 |
2,029 |
configure-helper.sh |
| dash |
1 |
0 |
1 |
2 |
1,733 |
functions |
| bash |
3 |
2 |
1 |
3 |
1,733 |
functions |
| osh-native |
6 |
3 |
3 |
8 |
1,733 |
functions |
| osh-nosouffle |
7 |
5 |
1 |
9 |
1,733 |
functions |
| osh-cpython |
279 |
261 |
18 |
21 |
1,733 |
functions |
| dash |
4 |
4 |
0 |
2 |
9,661 |
ltmain.sh |
| bash |
9 |
8 |
1 |
4 |
9,661 |
ltmain.sh |
| osh-native |
20 |
14 |
6 |
16 |
9,661 |
ltmain.sh |
| osh-nosouffle |
22 |
19 |
3 |
16 |
9,661 |
ltmain.sh |
| osh-cpython |
918 |
897 |
21 |
30 |
9,661 |
ltmain.sh |
| dash |
1 |
1 |
0 |
2 |
1,679 |
t4014-format-patch.sh |
| bash |
2 |
2 |
0 |
3 |
1,679 |
t4014-format-patch.sh |
| osh-native |
3 |
4 |
0 |
8 |
1,679 |
t4014-format-patch.sh |
| osh-nosouffle |
4 |
2 |
2 |
8 |
1,679 |
t4014-format-patch.sh |
| osh-cpython |
106 |
95 |
11 |
19 |
1,679 |
t4014-format-patch.sh |
| dash |
1 |
0 |
1 |
2 |
3,123 |
t9300-fast-import.sh |
| bash |
2 |
1 |
1 |
3 |
3,123 |
t9300-fast-import.sh |
| osh-native |
4 |
2 |
2 |
8 |
3,123 |
t9300-fast-import.sh |
| osh-nosouffle |
4 |
3 |
1 |
8 |
3,123 |
t9300-fast-import.sh |
| osh-cpython |
114 |
103 |
11 |
19 |
3,123 |
t9300-fast-import.sh |
| bash |
7 |
5 |
2 |
3 |
5,160 |
test-cmd-util.sh |
| osh-native |
17 |
14 |
3 |
13 |
5,160 |
test-cmd-util.sh |
| osh-nosouffle |
21 |
20 |
1 |
13 |
5,160 |
test-cmd-util.sh |
| osh-cpython |
846 |
826 |
19 |
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 |
31,600,631 |
2,698 |
Build.sh |
| osh-nosouffle |
35,848,882 |
2,698 |
Build.sh |
| dash |
7,346,197 |
2,512 |
abuild |
| bash |
23,586,858 |
2,512 |
abuild |
| osh-native |
44,723,217 |
2,512 |
abuild |
| osh-nosouffle |
52,280,000 |
2,512 |
abuild |
| dash |
55,988,490 |
20,489 |
configure |
| bash |
166,013,802 |
20,489 |
configure |
| osh-native |
231,143,475 |
20,489 |
configure |
| osh-nosouffle |
263,062,214 |
20,489 |
configure |
| dash |
161,016,284 |
69,779 |
configure-coreutils |
| bash |
440,767,942 |
69,779 |
configure-coreutils |
| osh-native |
748,386,541 |
69,779 |
configure-coreutils |
| osh-nosouffle |
862,831,742 |
69,779 |
configure-coreutils |
| bash |
22,799,636 |
2,029 |
configure-helper.sh |
| osh-native |
25,987,261 |
2,029 |
configure-helper.sh |
| osh-nosouffle |
30,265,463 |
2,029 |
configure-helper.sh |
| dash |
4,811,799 |
1,733 |
functions |
| bash |
15,312,098 |
1,733 |
functions |
| osh-native |
24,471,103 |
1,733 |
functions |
| osh-nosouffle |
28,859,885 |
1,733 |
functions |
| dash |
24,904,718 |
9,661 |
ltmain.sh |
| bash |
80,310,064 |
9,661 |
ltmain.sh |
| osh-native |
96,274,642 |
9,661 |
ltmain.sh |
| osh-nosouffle |
112,485,173 |
9,661 |
ltmain.sh |
| dash |
3,294,377 |
1,679 |
t4014-format-patch.sh |
| osh-native |
10,065,133 |
1,679 |
t4014-format-patch.sh |
| osh-nosouffle |
11,039,966 |
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 |
11,869,532 |
3,123 |
t9300-fast-import.sh |
| osh-nosouffle |
13,019,928 |
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 |
96,185,728 |
5,160 |
test-cmd-util.sh |
| osh-nosouffle |
112,289,649 |
5,160 |
test-cmd-util.sh |
Shell and Host Details
Raw Data