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 35 3 9 12.0 18.0 476,682 1,282 6 408,752 5 204,376 osh-native
parse.configure-coreutils 149 23 62 46.1 51.6 1,653,270 4,764 12 1,069,118 6 798,640 osh-native
parse.abuild 9 1 1 2.6 8.4 101,873 180 2 75,094 1 37,547 osh-native
ex.compute-fib 28 0 1 2.6 7.9 584,138 31,810 12 50,000 0 2,824 osh-native
ex.bashcomp-parse-help 181 0 3 10.6 8.8 995,215 27,376 21 50,000 0 3,819 osh-native
ex.abuild-print-help 23 1 2 2.8 8.8 116,282 478 3 85,330 1 42,665 osh-native

Resource Usage

parse.configure-cpython

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
6 6 0 1.6 dash -
24 23 0 3.0 bash -
105 59 52 3.5 zsh -
16 12 4 28.8 bumpleak/osh mut
19 19 0 29.3 _bin/cxx-opt+bumproot/osh mut
22 22 0 28.7 _bin/cxx-opt+bumpsmall/osh mut+alloc
29 15 15 25.0 osh-native mut+alloc
31 27 4 25.4 osh-native mut+alloc+free
35 27 8 18.0 osh-native mut+alloc+free+gc
36 28 8 18.0 osh-native mut+alloc+free+gc+exit
44 16 28 31.8 _bin/cxx-opt+nopool/osh mut+alloc
52 40 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 1.6 dash -
78 74 4 3.1 bash -
378 218 182 3.5 zsh -
49 44 4 85.4 bumpleak/osh mut
60 48 12 85.3 _bin/cxx-opt+bumproot/osh mut
69 58 12 86.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
99 58 41 73.4 osh-native mut+alloc
105 85 20 75.3 osh-native mut+alloc+free
149 133 16 51.6 osh-native mut+alloc+free+gc
154 138 16 52.1 osh-native mut+alloc+free+gc+exit
138 94 43 99.0 _bin/cxx-opt+nopool/osh mut+alloc
215 199 16 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 6 0 2.9 bash -
8 4 4 3.3 zsh -
6 6 0 10.2 bumpleak/osh mut
7 4 4 12.1 _bin/cxx-opt+bumproot/osh mut
7 7 0 10.9 _bin/cxx-opt+bumpsmall/osh mut+alloc
8 4 4 10.1 osh-native mut+alloc
8 4 4 10.1 osh-native mut+alloc+free
9 9 0 8.4 osh-native mut+alloc+free+gc
9 9 0 8.7 osh-native mut+alloc+free+gc+exit
11 4 8 11.4 _bin/cxx-opt+nopool/osh mut+alloc
11 0 11 9.5 _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
10 10 0 1.6 dash -
29 29 0 2.9 bash -
24 20 4 3.3 zsh -
19 19 0 32.2 bumpleak/osh mut
25 25 0 31.8 _bin/cxx-opt+bumproot/osh mut
28 24 4 31.7 _bin/cxx-opt+bumpsmall/osh mut+alloc
36 24 12 26.3 osh-native mut+alloc
37 16 21 26.7 osh-native mut+alloc+free
28 24 4 7.9 osh-native mut+alloc+free+gc
27 27 0 7.7 osh-native mut+alloc+free+gc+exit
54 38 15 35.8 _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
73 73 0 3.1 bash -
167 118 49 54.5 bumpleak/osh mut
181 133 48 56.1 _bin/cxx-opt+bumproot/osh mut
193 160 32 55.4 _bin/cxx-opt+bumpsmall/osh mut+alloc
212 139 72 47.1 osh-native mut+alloc
217 145 72 48.9 osh-native mut+alloc+free
181 140 40 8.8 osh-native mut+alloc+free+gc
182 99 83 8.7 osh-native mut+alloc+free+gc+exit
231 139 92 63.3 _bin/cxx-opt+nopool/osh mut+alloc
206 139 67 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 4 5 3.4 dash -
20 19 2 4.3 bash -
18 9 9 3.4 zsh -
20 11 10 12.9 bumpleak/osh mut
20 17 3 12.0 _bin/cxx-opt+bumproot/osh mut
20 7 14 12.3 _bin/cxx-opt+bumpsmall/osh mut+alloc
22 14 8 10.7 osh-native mut+alloc
23 16 8 10.9 osh-native mut+alloc+free
23 16 7 8.8 osh-native mut+alloc+free+gc
23 16 7 9.0 osh-native mut+alloc+free+gc+exit
25 17 8 12.7 _bin/cxx-opt+nopool/osh mut+alloc
25 24 2 9.9 _bin/cxx-opt+nopool/osh mut+alloc+free+gc