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 |
3,729 |
bash |
118,863 |
1,003 |
osh-native |
118,863 |
599 |
osh-cpython |
118,863 |
17 |
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 |
0 |
3 |
3 |
2,698 |
Build.sh |
osh-native |
5 |
5 |
0 |
8 |
2,698 |
Build.sh |
osh-cpython |
199 |
175 |
24 |
20 |
2,698 |
Build.sh |
dash |
1 |
1 |
0 |
2 |
2,512 |
abuild |
bash |
4 |
4 |
0 |
3 |
2,512 |
abuild |
osh-native |
6 |
6 |
0 |
9 |
2,512 |
abuild |
osh-cpython |
269 |
252 |
16 |
21 |
2,512 |
abuild |
dash |
6 |
6 |
0 |
2 |
20,489 |
configure |
bash |
23 |
23 |
0 |
4 |
20,489 |
configure |
osh-native |
32 |
24 |
8 |
21 |
20,489 |
configure |
osh-cpython |
1,265 |
1,245 |
20 |
42 |
20,489 |
configure |
dash |
15 |
15 |
0 |
2 |
69,779 |
configure-coreutils |
bash |
55 |
50 |
4 |
3 |
69,779 |
configure-coreutils |
osh-native |
111 |
91 |
20 |
51 |
69,779 |
configure-coreutils |
osh-cpython |
3,673 |
3,584 |
88 |
86 |
69,779 |
configure-coreutils |
bash |
4 |
0 |
4 |
3 |
2,029 |
configure-helper.sh |
osh-native |
5 |
0 |
5 |
8 |
2,029 |
configure-helper.sh |
osh-cpython |
194 |
186 |
8 |
20 |
2,029 |
configure-helper.sh |
dash |
1 |
1 |
0 |
2 |
1,733 |
functions |
bash |
3 |
3 |
0 |
3 |
1,733 |
functions |
osh-native |
5 |
2 |
2 |
8 |
1,733 |
functions |
osh-cpython |
185 |
181 |
4 |
20 |
1,733 |
functions |
dash |
3 |
3 |
0 |
2 |
9,661 |
ltmain.sh |
bash |
12 |
8 |
4 |
4 |
9,661 |
ltmain.sh |
osh-native |
15 |
15 |
0 |
15 |
9,661 |
ltmain.sh |
osh-cpython |
593 |
580 |
12 |
28 |
9,661 |
ltmain.sh |
dash |
1 |
0 |
1 |
1 |
1,679 |
t4014-format-patch.sh |
bash |
2 |
2 |
0 |
3 |
1,679 |
t4014-format-patch.sh |
osh-native |
3 |
3 |
0 |
7 |
1,679 |
t4014-format-patch.sh |
osh-cpython |
71 |
54 |
17 |
18 |
1,679 |
t4014-format-patch.sh |
dash |
1 |
1 |
0 |
2 |
3,123 |
t9300-fast-import.sh |
osh-native |
3 |
3 |
0 |
8 |
3,123 |
t9300-fast-import.sh |
bash |
3 |
3 |
0 |
3 |
3,123 |
t9300-fast-import.sh |
osh-cpython |
76 |
67 |
9 |
18 |
3,123 |
t9300-fast-import.sh |
bash |
10 |
10 |
0 |
3 |
5,160 |
test-cmd-util.sh |
osh-native |
13 |
9 |
4 |
12 |
5,160 |
test-cmd-util.sh |
osh-cpython |
548 |
540 |
8 |
27 |
5,160 |
test-cmd-util.sh |
Instruction Counts
shell label |
irefs |
num lines |
filename |
dash |
6,417,905 |
2,698 |
Build.sh |
bash |
35,933,919 |
2,698 |
Build.sh |
osh-native |
37,952,579 |
2,698 |
Build.sh |
dash |
7,043,427 |
2,512 |
abuild |
bash |
43,752,445 |
2,512 |
abuild |
osh-native |
45,839,346 |
2,512 |
abuild |
dash |
53,264,106 |
20,489 |
configure |
osh-native |
279,206,717 |
20,489 |
configure |
bash |
349,528,134 |
20,489 |
configure |
dash |
151,775,776 |
69,779 |
configure-coreutils |
bash |
886,051,458 |
69,779 |
configure-coreutils |
osh-native |
889,681,809 |
69,779 |
configure-coreutils |
osh-native |
31,038,000 |
2,029 |
configure-helper.sh |
bash |
47,119,656 |
2,029 |
configure-helper.sh |
dash |
4,654,611 |
1,733 |
functions |
bash |
28,153,410 |
1,733 |
functions |
osh-native |
29,305,386 |
1,733 |
functions |
dash |
23,598,849 |
9,661 |
ltmain.sh |
osh-native |
114,671,858 |
9,661 |
ltmain.sh |
bash |
172,845,801 |
9,661 |
ltmain.sh |
dash |
3,168,267 |
1,679 |
t4014-format-patch.sh |
osh-native |
11,979,801 |
1,679 |
t4014-format-patch.sh |
bash |
25,320,150 |
1,679 |
t4014-format-patch.sh |
dash |
4,358,947 |
3,123 |
t9300-fast-import.sh |
osh-native |
14,086,195 |
3,123 |
t9300-fast-import.sh |
bash |
41,145,971 |
3,123 |
t9300-fast-import.sh |
osh-native |
113,914,077 |
5,160 |
test-cmd-util.sh |
bash |
161,991,275 |
5,160 |
test-cmd-util.sh |
Shell and Host Details
Raw Data