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 17.8 476,690 1,282 6 408,758 5 204,379 osh-native
parse.configure-coreutils 154 26 67 46.1 51.6 1,653,278 4,764 12 1,069,124 6 798,643 osh-native
parse.abuild 9 1 1 2.6 8.5 101,881 180 2 75,100 1 37,550 osh-native
ex.compute-fib 28 0 2 2.4 7.7 584,146 31,810 12 50,000 0 2,826 osh-native
ex.bashcomp-parse-help 181 0 4 10.3 8.7 995,223 27,376 21 50,000 0 3,822 osh-native
ex.abuild-print-help 22 1 2 2.8 9.0 116,290 478 3 85,336 1 42,668 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 -
23 23 0 3.0 bash -
105 58 54 3.4 zsh -
17 16 0 28.7 bumpleak/osh mut
20 19 0 29.7 _bin/cxx-opt+bumproot/osh mut
23 15 8 29.2 _bin/cxx-opt+bumpsmall/osh mut+alloc
30 18 11 25.0 osh-native mut+alloc
32 20 12 25.7 osh-native mut+alloc+free
36 24 12 17.8 osh-native mut+alloc+free+gc
37 33 4 18.0 osh-native mut+alloc+free+gc+exit
44 40 4 32.1 _bin/cxx-opt+nopool/osh mut+alloc
49 41 7 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 18 4 1.6 dash -
78 78 0 3.3 bash -
376 225 170 3.4 zsh -
50 34 15 84.8 bumpleak/osh mut
59 47 12 85.5 _bin/cxx-opt+bumproot/osh mut
70 66 4 86.4 _bin/cxx-opt+bumpsmall/osh mut+alloc
97 64 32 73.4 osh-native mut+alloc
106 77 28 75.3 osh-native mut+alloc+free
154 117 36 51.6 osh-native mut+alloc+free+gc
174 150 24 50.7 osh-native mut+alloc+free+gc+exit
139 77 61 98.2 _bin/cxx-opt+nopool/osh mut+alloc
208 180 28 72.6 _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 3.0 bash -
8 8 0 3.3 zsh -
6 6 0 12.1 bumpleak/osh mut
6 3 3 12.2 _bin/cxx-opt+bumproot/osh mut
8 0 8 12.8 _bin/cxx-opt+bumpsmall/osh mut+alloc
9 4 4 10.1 osh-native mut+alloc
9 4 4 10.2 osh-native mut+alloc+free
9 9 0 8.5 osh-native mut+alloc+free+gc
9 9 0 8.7 osh-native mut+alloc+free+gc+exit
12 8 4 11.4 _bin/cxx-opt+nopool/osh mut+alloc
12 8 4 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 1.4 dash -
29 29 0 2.9 bash -
24 24 0 3.4 zsh -
20 20 0 32.6 bumpleak/osh mut
25 25 0 33.3 _bin/cxx-opt+bumproot/osh mut
28 20 8 31.7 _bin/cxx-opt+bumpsmall/osh mut+alloc
35 23 12 26.2 osh-native mut+alloc
38 25 12 26.5 osh-native mut+alloc+free
28 24 4 7.7 osh-native mut+alloc+free+gc
28 24 4 7.9 osh-native mut+alloc+free+gc+exit
54 31 23 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
72 68 4 3.1 bash -
171 119 52 55.5 bumpleak/osh mut
182 123 59 54.2 _bin/cxx-opt+bumproot/osh mut
192 100 92 55.0 _bin/cxx-opt+bumpsmall/osh mut+alloc
212 144 68 47.0 osh-native mut+alloc
222 123 99 48.7 osh-native mut+alloc+free
181 153 28 8.7 osh-native mut+alloc+free+gc
181 129 52 8.8 osh-native mut+alloc+free+gc+exit
233 161 72 63.3 _bin/cxx-opt+nopool/osh mut+alloc
210 161 48 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 4 5 3.5 dash -
20 16 4 4.3 bash -
18 12 7 3.5 zsh -
19 15 4 11.6 bumpleak/osh mut
21 9 12 13.0 _bin/cxx-opt+bumproot/osh mut
20 11 10 12.2 _bin/cxx-opt+bumpsmall/osh mut+alloc
21 10 12 11.0 osh-native mut+alloc
23 11 12 11.1 osh-native mut+alloc+free
22 15 7 9.0 osh-native mut+alloc+free+gc
23 21 2 9.0 osh-native mut+alloc+free+gc+exit
25 24 2 12.7 _bin/cxx-opt+nopool/osh mut+alloc
25 14 11 10.1 _bin/cxx-opt+nopool/osh mut+alloc+free+gc