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 3 9 12.0 17.7 476,676 1,282 6 408,744 5 204,372 osh-native
parse.configure-coreutils 170 28 81 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 29 0 2 2.6 8.0 584,132 31,810 12 50,000 0 2,819 osh-native
ex.bashcomp-parse-help 182 0 4 10.2 8.5 982,889 27,376 21 50,000 0 3,805 osh-native
ex.abuild-print-help 23 1 2 2.8 8.8 116,248 478 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
7 6 0 1.6 dash -
24 24 0 3.1 bash -
105 69 43 3.4 zsh -
16 12 4 29.9 bumpleak/osh mut
20 16 4 30.2 _bin/cxx-opt+bumproot/osh mut
23 15 8 30.3 _bin/cxx-opt+bumpsmall/osh mut+alloc
30 19 11 25.0 osh-native mut+alloc
33 14 18 25.3 osh-native mut+alloc+free
36 27 8 17.7 osh-native mut+alloc+free+gc
36 24 12 18.0 osh-native mut+alloc+free+gc+exit
44 20 24 32.9 _bin/cxx-opt+nopool/osh mut+alloc
52 47 4 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
22 18 4 1.6 dash -
78 74 4 3.3 bash -
378 212 188 3.5 zsh -
50 41 8 85.0 bumpleak/osh mut
61 48 12 85.4 _bin/cxx-opt+bumproot/osh mut
71 39 31 86.1 _bin/cxx-opt+bumpsmall/osh mut+alloc
99 52 48 73.5 osh-native mut+alloc
108 75 32 75.1 osh-native mut+alloc+free
170 141 28 51.4 osh-native mut+alloc+free+gc
166 117 48 52.3 osh-native mut+alloc+free+gc+exit
141 84 56 98.2 _bin/cxx-opt+nopool/osh mut+alloc
254 206 48 71.6 _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 1.3 dash -
6 6 0 3.0 bash -
8 0 7 3.3 zsh -
6 6 0 10.7 bumpleak/osh mut
7 7 0 11.3 _bin/cxx-opt+bumproot/osh mut
8 8 0 12.4 _bin/cxx-opt+bumpsmall/osh mut+alloc
10 10 0 9.7 osh-native mut+alloc
9 9 0 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 8 4 11.4 _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 1.6 dash -
29 24 4 3.0 bash -
24 19 4 3.4 zsh -
19 8 11 31.0 bumpleak/osh mut
26 19 7 32.7 _bin/cxx-opt+bumproot/osh mut
28 24 4 31.8 _bin/cxx-opt+bumpsmall/osh mut+alloc
37 33 4 26.3 osh-native mut+alloc
40 35 4 26.6 osh-native mut+alloc+free
29 24 4 8.0 osh-native mut+alloc+free+gc
28 28 0 7.7 osh-native mut+alloc+free+gc+exit
54 27 27 36.0 _bin/cxx-opt+nopool/osh mut+alloc
37 37 0 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 3.0 bash -
168 96 72 55.2 bumpleak/osh mut
180 135 44 55.5 _bin/cxx-opt+bumproot/osh mut
193 129 64 54.6 _bin/cxx-opt+bumpsmall/osh mut+alloc
210 119 91 46.5 osh-native mut+alloc
215 134 81 48.1 osh-native mut+alloc+free
182 122 59 8.5 osh-native mut+alloc+free+gc
181 148 32 8.4 osh-native mut+alloc+free+gc+exit
230 133 97 62.3 _bin/cxx-opt+nopool/osh mut+alloc
208 144 64 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 -
20 17 3 4.5 bash -
18 10 9 3.4 zsh -
20 13 8 12.6 bumpleak/osh mut
20 16 5 12.4 _bin/cxx-opt+bumproot/osh mut
22 12 10 12.9 _bin/cxx-opt+bumpsmall/osh mut+alloc
21 17 5 10.9 osh-native mut+alloc
23 17 7 10.9 osh-native mut+alloc+free
23 12 11 8.8 osh-native mut+alloc+free+gc
23 17 7 8.9 osh-native mut+alloc+free+gc+exit
25 17 8 12.5 _bin/cxx-opt+nopool/osh mut+alloc
26 20 6 9.7 _bin/cxx-opt+nopool/osh mut+alloc+free+gc