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 18.0 476,676 1,282 6 408,744 5 204,372 osh-native
parse.configure-coreutils 154 24 66 46.1 51.4 1,653,264 4,764 12 1,069,110 6 798,636 osh-native
parse.abuild 9 1 1 2.6 8.4 101,867 180 2 75,086 1 37,543 osh-native
ex.compute-fib 28 0 1 2.6 7.7 584,132 31,810 12 50,000 0 2,819 osh-native
ex.bashcomp-parse-help 181 0 3 10.2 8.5 982,889 27,376 21 50,000 0 3,805 osh-native
ex.abuild-print-help 22 1 2 2.8 8.9 116,248 478 3 85,322 1 42,661 osh-native

Resource Usage

parse.configure-cpython

elapsed ms user ms sys ms max rss MB shell label shell runtime opts
6 3 3 1.6 dash -
23 19 4 3.0 bash -
105 55 57 3.4 zsh -
16 12 4 29.1 bumpleak/osh mut
19 15 4 30.0 _bin/cxx-opt+bumproot/osh mut
22 18 4 28.6 _bin/cxx-opt+bumpsmall/osh mut+alloc
30 21 8 25.2 osh-native mut+alloc
32 28 4 25.7 osh-native mut+alloc+free
35 27 8 18.0 osh-native mut+alloc+free+gc
36 24 12 18.0 osh-native mut+alloc+free+gc+exit
43 27 16 32.0 _bin/cxx-opt+nopool/osh mut+alloc
49 45 4 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
21 18 4 1.4 dash -
78 74 4 3.1 bash -
376 178 219 3.7 zsh -
48 40 8 85.5 bumpleak/osh mut
59 51 8 85.4 _bin/cxx-opt+bumproot/osh mut
69 60 8 86.4 _bin/cxx-opt+bumpsmall/osh mut+alloc
98 75 24 73.4 osh-native mut+alloc
105 60 44 75.3 osh-native mut+alloc+free
154 133 20 51.4 osh-native mut+alloc+free+gc
156 132 24 52.2 osh-native mut+alloc+free+gc+exit
140 100 40 98.8 _bin/cxx-opt+nopool/osh mut+alloc
224 184 40 73.2 _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 3.0 bash -
8 7 0 3.3 zsh -
5 6 0 11.8 bumpleak/osh mut
7 7 0 11.5 _bin/cxx-opt+bumproot/osh mut
8 4 4 12.3 _bin/cxx-opt+bumpsmall/osh mut+alloc
8 4 4 10.0 osh-native mut+alloc
9 0 9 10.1 osh-native mut+alloc+free
9 4 4 8.4 osh-native mut+alloc+free+gc
9 9 0 8.4 osh-native mut+alloc+free+gc+exit
12 8 4 11.1 _bin/cxx-opt+nopool/osh mut+alloc
11 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
10 10 0 1.4 dash -
29 24 4 2.9 bash -
24 16 8 3.3 zsh -
19 7 11 30.8 bumpleak/osh mut
25 25 0 31.7 _bin/cxx-opt+bumproot/osh mut
29 24 4 32.1 _bin/cxx-opt+bumpsmall/osh mut+alloc
37 20 16 26.5 osh-native mut+alloc
38 25 13 26.7 osh-native mut+alloc+free
28 28 0 7.7 osh-native mut+alloc+free+gc
28 20 8 7.7 osh-native mut+alloc+free+gc+exit
55 31 23 36.0 _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 64 8 3.1 bash -
169 113 56 53.7 bumpleak/osh mut
179 101 77 54.1 _bin/cxx-opt+bumproot/osh mut
194 125 69 55.4 _bin/cxx-opt+bumpsmall/osh mut+alloc
210 178 32 46.4 osh-native mut+alloc
217 137 80 48.1 osh-native mut+alloc+free
181 124 56 8.5 osh-native mut+alloc+free+gc
180 116 64 8.4 osh-native mut+alloc+free+gc+exit
232 164 68 63.5 _bin/cxx-opt+nopool/osh mut+alloc
209 152 56 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 -
19 14 5 4.5 bash -
18 16 3 3.5 zsh -
19 12 7 11.4 bumpleak/osh mut
19 12 8 13.5 _bin/cxx-opt+bumproot/osh mut
22 16 6 13.6 _bin/cxx-opt+bumpsmall/osh mut+alloc
22 15 7 11.0 osh-native mut+alloc
24 6 18 10.9 osh-native mut+alloc+free
22 18 5 8.9 osh-native mut+alloc+free+gc
23 21 2 9.0 osh-native mut+alloc+free+gc+exit
25 12 13 12.5 _bin/cxx-opt+nopool/osh mut+alloc
25 23 2 9.8 _bin/cxx-opt+nopool/osh mut+alloc+free+gc