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 17.8 476,684 1,282 6 408,754 5 204,377 osh-native
parse.configure-coreutils 167 27 79 46.1 51.4 1,653,272 4,764 12 1,069,120 6 798,641 osh-native
parse.abuild 9 1 2 2.6 8.4 101,875 180 2 75,096 1 37,548 osh-native
ex.compute-fib 28 0 2 2.6 8.0 584,140 31,810 12 50,000 0 2,825 osh-native
ex.bashcomp-parse-help 182 0 4 10.6 8.7 995,217 27,376 21 50,000 0 3,820 osh-native
ex.abuild-print-help 23 1 2 2.8 9.0 116,284 478 3 85,332 1 42,666 osh-native

Resource Usage

parse.configure-cpython

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
6 3 3 1.4 dash -
23 19 4 3.1 bash -
105 60 52 3.3 zsh -
17 14 3 29.8 bumpleak/osh mut
20 16 4 28.4 _bin/cxx-opt+bumproot/osh mut
23 15 7 28.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
30 22 7 25.0 osh-native mut+alloc
32 27 4 25.6 osh-native mut+alloc+free
36 36 0 17.8 osh-native mut+alloc+free+gc
38 38 0 17.8 osh-native mut+alloc+free+gc+exit
43 27 16 33.0 _bin/cxx-opt+nopool/osh mut+alloc
51 42 8 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 73 4 3.3 bash -
379 217 182 3.4 zsh -
49 34 15 85.8 bumpleak/osh mut
61 44 16 85.2 _bin/cxx-opt+bumproot/osh mut
70 54 16 85.7 _bin/cxx-opt+bumpsmall/osh mut+alloc
97 65 32 73.3 osh-native mut+alloc
106 66 39 75.3 osh-native mut+alloc+free
167 150 16 51.4 osh-native mut+alloc+free+gc
174 146 28 52.1 osh-native mut+alloc+free+gc+exit
137 98 39 99.3 _bin/cxx-opt+nopool/osh mut+alloc
235 211 24 72.5 _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 8 0 3.3 zsh -
6 3 3 11.9 bumpleak/osh mut
7 0 7 12.5 _bin/cxx-opt+bumproot/osh mut
7 3 3 10.8 _bin/cxx-opt+bumpsmall/osh mut+alloc
8 8 0 10.0 osh-native mut+alloc
9 4 4 10.0 osh-native mut+alloc+free
9 9 0 8.4 osh-native mut+alloc+free+gc
9 9 0 8.5 osh-native mut+alloc+free+gc+exit
12 12 0 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 1.6 dash -
29 29 0 2.9 bash -
24 20 4 3.4 zsh -
19 15 4 31.8 bumpleak/osh mut
25 21 4 31.3 _bin/cxx-opt+bumproot/osh mut
28 16 12 32.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
36 28 8 26.3 osh-native mut+alloc
38 19 19 26.7 osh-native mut+alloc+free
28 28 0 8.0 osh-native mut+alloc+free+gc
28 24 4 8.0 osh-native mut+alloc+free+gc+exit
53 42 11 36.0 _bin/cxx-opt+nopool/osh mut+alloc
37 30 7 9.3 _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
75 67 8 3.0 bash -
167 131 36 54.3 bumpleak/osh mut
178 98 79 54.8 _bin/cxx-opt+bumproot/osh mut
193 112 80 56.0 _bin/cxx-opt+bumpsmall/osh mut+alloc
209 96 113 47.1 osh-native mut+alloc
217 144 72 48.9 osh-native mut+alloc+free
182 130 51 8.7 osh-native mut+alloc+free+gc
182 119 63 8.7 osh-native mut+alloc+free+gc+exit
231 139 91 63.7 _bin/cxx-opt+nopool/osh mut+alloc
214 153 60 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 10 10 4.3 bash -
18 10 9 3.4 zsh -
19 14 5 11.4 bumpleak/osh mut
21 11 10 12.6 _bin/cxx-opt+bumproot/osh mut
22 21 2 13.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
22 12 10 11.0 osh-native mut+alloc
23 21 2 11.0 osh-native mut+alloc+free
23 12 11 9.0 osh-native mut+alloc+free+gc
24 15 9 9.0 osh-native mut+alloc+free+gc+exit
25 11 14 12.6 _bin/cxx-opt+nopool/osh mut+alloc
26 18 9 9.8 _bin/cxx-opt+nopool/osh mut+alloc+free+gc