Memory Management Overhead

Source code: oil/benchmarks/gc.sh

GC Stats

task elapsed ms max gc millis total gc millis allocated MB max rss MB num allocated num gc points num gc done gc threshold num growths max survived shell label
parse.configure-cpython 36 4 10 12.0 18.0 476,690 1,282 6 408,762 5 204,381 osh-native
parse.configure-coreutils 165 26 75 46.1 51.5 1,653,278 4,764 12 1,069,128 6 798,645 osh-native
parse.abuild 9 1 1 2.6 8.4 101,881 180 2 75,104 1 37,552 osh-native
ex.compute-fib 29 0 2 2.6 7.9 584,146 31,810 12 50,000 0 2,828 osh-native
ex.bashcomp-parse-help 182 0 4 10.6 8.5 995,223 27,376 21 50,000 0 3,824 osh-native
ex.abuild-print-help 23 1 2 2.8 8.5 116,290 478 3 85,340 1 42,670 osh-native

Resource Usage

parse.configure-cpython

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
7 6 0 1.6 dash -
24 20 4 3.1 bash -
104 52 59 3.4 zsh -
16 12 4 28.2 bumpleak/osh mut
20 19 0 30.2 _bin/cxx-opt+bumproot/osh mut
23 14 9 29.2 _bin/cxx-opt+bumpsmall/osh mut+alloc
30 21 9 25.0 osh-native mut+alloc
32 24 8 25.6 osh-native mut+alloc+free
36 32 4 18.0 osh-native mut+alloc+free+gc
37 30 7 18.0 osh-native mut+alloc+free+gc+exit
44 28 16 32.2 _bin/cxx-opt+nopool/osh mut+alloc
51 39 12 22.0 _bin/cxx-opt+nopool/osh mut+alloc+free+gc

parse.configure-coreutils

Parsing the autoconf-generated configure script from GNU coreutils.

Note that unlike other shells, osh -n retains all nodes on purpose. (See the parser benchmark).

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
21 21 0 1.4 dash -
78 74 4 3.3 bash -
388 216 190 3.5 zsh -
49 41 8 84.2 bumpleak/osh mut
62 54 8 85.4 _bin/cxx-opt+bumproot/osh mut
70 61 8 85.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
97 65 32 73.4 osh-native mut+alloc
105 69 36 75.1 osh-native mut+alloc+free
165 136 28 51.5 osh-native mut+alloc+free+gc
163 139 24 50.5 osh-native mut+alloc+free+gc+exit
140 96 44 98.9 _bin/cxx-opt+nopool/osh mut+alloc
235 187 48 73.1 _bin/cxx-opt+nopool/osh mut+alloc+free+gc

parse.abuild

Parsing abuild from Alpine Linux.

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
2 0 2 1.4 dash -
6 6 0 2.9 bash -
8 4 4 3.3 zsh -
6 6 0 12.1 bumpleak/osh mut
7 7 0 11.5 _bin/cxx-opt+bumproot/osh mut
7 7 0 10.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
9 3 6 9.8 osh-native mut+alloc
9 0 9 10.2 osh-native mut+alloc+free
9 9 0 8.4 osh-native mut+alloc+free+gc
9 9 0 8.4 osh-native mut+alloc+free+gc+exit
12 12 0 11.4 _bin/cxx-opt+nopool/osh mut+alloc
12 8 4 9.3 _bin/cxx-opt+nopool/osh mut+alloc+free+gc

ex.compute-fib

A synthetic benchmark for POSIX shell arithmetic.

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
11 7 4 1.4 dash -
29 25 4 2.9 bash -
24 23 0 3.3 zsh -
19 19 0 31.1 bumpleak/osh mut
26 25 0 31.9 _bin/cxx-opt+bumproot/osh mut
28 24 4 32.0 _bin/cxx-opt+bumpsmall/osh mut+alloc
37 26 11 26.3 osh-native mut+alloc
39 17 21 26.6 osh-native mut+alloc+free
29 20 8 7.9 osh-native mut+alloc+free+gc
28 28 0 7.9 osh-native mut+alloc+free+gc+exit
55 43 12 36.2 _bin/cxx-opt+nopool/osh mut+alloc
37 33 4 9.4 _bin/cxx-opt+nopool/osh mut+alloc+free+gc

ex.bashcomp-parse-help

A realistic bash-completion workload.

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
74 73 0 3.1 bash -
168 116 52 54.2 bumpleak/osh mut
180 136 44 54.4 _bin/cxx-opt+bumproot/osh mut
196 127 68 55.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
212 132 80 47.0 osh-native mut+alloc
220 163 57 48.9 osh-native mut+alloc+free
182 123 59 8.5 osh-native mut+alloc+free+gc
182 145 36 8.5 osh-native mut+alloc+free+gc+exit
234 157 76 64.4 _bin/cxx-opt+nopool/osh mut+alloc
213 168 44 10.1 _bin/cxx-opt+nopool/osh mut+alloc+free+gc

ex.abuild-print-help

Running abuild -h from Alpine Linux.

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
10 9 1 3.4 dash -
20 12 8 4.5 bash -
18 7 12 3.4 zsh -
19 14 5 11.6 bumpleak/osh mut
20 14 6 11.8 _bin/cxx-opt+bumproot/osh mut
21 16 6 12.8 _bin/cxx-opt+bumpsmall/osh mut+alloc
22 15 8 10.7 osh-native mut+alloc
23 11 13 11.1 osh-native mut+alloc+free
23 14 9 8.5 osh-native mut+alloc+free+gc
23 19 5 9.0 osh-native mut+alloc+free+gc+exit
25 23 3 12.6 _bin/cxx-opt+nopool/osh mut+alloc
26 23 3 9.8 _bin/cxx-opt+nopool/osh mut+alloc+free+gc