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 37 4 10 12.0 18.0 476,694 1,282 6 408,764 5 204,382 osh-native
parse.configure-coreutils 165 27 76 46.1 51.7 1,653,282 4,764 12 1,069,130 6 798,646 osh-native
parse.abuild 9 1 1 2.6 8.5 101,885 180 2 75,106 1 37,553 osh-native
ex.compute-fib 29 0 2 2.4 8.0 584,150 31,810 12 50,000 0 2,829 osh-native
ex.bashcomp-parse-help 180 0 4 10.3 8.4 995,227 27,376 21 50,000 0 3,825 osh-native
ex.abuild-print-help 23 1 2 2.8 8.9 116,294 478 3 85,342 1 42,671 osh-native

Resource Usage

parse.configure-cpython

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
7 7 0 1.4 dash -
23 23 0 3.1 bash -
105 63 48 3.3 zsh -
16 8 8 29.3 bumpleak/osh mut
20 16 4 28.2 _bin/cxx-opt+bumproot/osh mut
23 23 0 29.2 _bin/cxx-opt+bumpsmall/osh mut+alloc
30 21 8 25.2 osh-native mut+alloc
32 16 16 25.6 osh-native mut+alloc+free
37 15 22 18.0 osh-native mut+alloc+free+gc
37 24 12 18.0 osh-native mut+alloc+free+gc+exit
44 31 12 32.3 _bin/cxx-opt+nopool/osh mut+alloc
49 24 24 22.1 _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
22 17 4 1.4 dash -
78 78 0 3.1 bash -
378 206 192 3.5 zsh -
50 42 8 85.1 bumpleak/osh mut
59 47 12 85.6 _bin/cxx-opt+bumproot/osh mut
70 62 8 85.6 _bin/cxx-opt+bumpsmall/osh mut+alloc
99 59 40 73.4 osh-native mut+alloc
106 77 28 75.3 osh-native mut+alloc+free
165 128 36 51.7 osh-native mut+alloc+free+gc
162 143 20 50.6 osh-native mut+alloc+free+gc+exit
141 120 20 97.6 _bin/cxx-opt+nopool/osh mut+alloc
222 193 28 73.3 _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 2 0 1.4 dash -
6 3 3 3.0 bash -
8 0 7 3.3 zsh -
6 0 6 10.4 bumpleak/osh mut
6 3 3 10.7 _bin/cxx-opt+bumproot/osh mut
8 8 0 11.9 _bin/cxx-opt+bumpsmall/osh mut+alloc
8 8 0 10.0 osh-native mut+alloc
9 9 0 10.0 osh-native mut+alloc+free
9 9 0 8.5 osh-native mut+alloc+free+gc
9 3 6 8.5 osh-native mut+alloc+free+gc+exit
12 8 4 11.4 _bin/cxx-opt+nopool/osh mut+alloc
12 8 4 9.6 _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 10 0 1.4 dash -
29 29 0 3.0 bash -
24 20 4 3.3 zsh -
19 15 4 30.8 bumpleak/osh mut
26 21 4 32.5 _bin/cxx-opt+bumproot/osh mut
28 24 4 33.1 _bin/cxx-opt+bumpsmall/osh mut+alloc
37 28 8 26.2 osh-native mut+alloc
39 27 12 26.6 osh-native mut+alloc+free
29 28 0 8.0 osh-native mut+alloc+free+gc
29 28 0 8.0 osh-native mut+alloc+free+gc+exit
55 37 17 35.9 _bin/cxx-opt+nopool/osh mut+alloc
38 34 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
73 65 8 3.1 bash -
167 139 28 55.6 bumpleak/osh mut
180 124 56 54.8 _bin/cxx-opt+bumproot/osh mut
196 128 68 55.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
213 140 72 46.9 osh-native mut+alloc
220 144 76 48.6 osh-native mut+alloc+free
180 116 64 8.4 osh-native mut+alloc+free+gc
181 100 80 8.7 osh-native mut+alloc+free+gc+exit
233 149 84 62.6 _bin/cxx-opt+nopool/osh mut+alloc
208 140 68 10.2 _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 19 1 4.5 bash -
18 10 8 3.4 zsh -
18 13 5 11.5 bumpleak/osh mut
19 12 7 11.6 _bin/cxx-opt+bumproot/osh mut
20 17 4 12.8 _bin/cxx-opt+bumpsmall/osh mut+alloc
21 15 6 10.6 osh-native mut+alloc
23 11 12 11.3 osh-native mut+alloc+free
23 6 17 8.9 osh-native mut+alloc+free+gc
23 21 3 9.0 osh-native mut+alloc+free+gc+exit
25 12 14 12.6 _bin/cxx-opt+nopool/osh mut+alloc
25 18 8 10.0 _bin/cxx-opt+nopool/osh mut+alloc+free+gc