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 38 5 11 12.0 18.0 476,684 1,282 6 408,754 5 204,377 osh-native
parse.configure-coreutils 172 27 79 46.1 51.6 1,653,272 4,764 12 1,069,120 6 798,641 osh-native
parse.abuild 9 1 1 2.6 8.5 101,875 180 2 75,096 1 37,548 osh-native
ex.compute-fib 28 0 1 2.6 7.9 584,140 31,810 12 50,000 0 2,825 osh-native
ex.bashcomp-parse-help 185 0 4 10.6 8.8 995,217 27,376 21 50,000 0 3,820 osh-native
ex.abuild-print-help 23 1 2 2.8 8.8 116,284 478 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 6 0 1.6 dash -
25 25 0 3.0 bash -
105 52 60 3.4 zsh -
16 12 4 28.7 bumpleak/osh mut
20 20 0 28.2 _bin/cxx-opt+bumproot/osh mut
22 17 4 29.4 _bin/cxx-opt+bumpsmall/osh mut+alloc
30 13 17 25.2 osh-native mut+alloc
32 24 8 25.6 osh-native mut+alloc+free
38 27 11 18.0 osh-native mut+alloc+free+gc
38 34 4 18.0 osh-native mut+alloc+free+gc+exit
43 23 19 31.9 _bin/cxx-opt+nopool/osh mut+alloc
51 43 9 22.3 _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 -
77 77 0 3.1 bash -
378 229 169 3.5 zsh -
49 34 15 85.3 bumpleak/osh mut
59 55 4 85.7 _bin/cxx-opt+bumproot/osh mut
71 67 4 85.3 _bin/cxx-opt+bumpsmall/osh mut+alloc
98 65 33 73.6 osh-native mut+alloc
105 72 32 75.4 osh-native mut+alloc+free
172 148 24 51.6 osh-native mut+alloc+free+gc
170 150 20 52.2 osh-native mut+alloc+free+gc+exit
139 103 36 99.0 _bin/cxx-opt+nopool/osh mut+alloc
222 197 24 73.5 _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 0 2 1.3 dash -
6 6 0 2.9 bash -
8 8 0 3.3 zsh -
6 6 0 11.9 bumpleak/osh mut
7 7 0 11.7 _bin/cxx-opt+bumproot/osh mut
8 4 4 11.5 _bin/cxx-opt+bumpsmall/osh mut+alloc
9 0 9 10.1 osh-native mut+alloc
9 9 0 10.1 osh-native mut+alloc+free
9 3 6 8.5 osh-native mut+alloc+free+gc
9 6 3 8.5 osh-native mut+alloc+free+gc+exit
12 4 8 11.4 _bin/cxx-opt+nopool/osh mut+alloc
11 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 7 3 1.4 dash -
28 24 4 2.9 bash -
24 23 0 3.4 zsh -
19 15 4 32.6 bumpleak/osh mut
26 25 0 32.2 _bin/cxx-opt+bumproot/osh mut
28 24 4 32.3 _bin/cxx-opt+bumpsmall/osh mut+alloc
36 28 8 26.5 osh-native mut+alloc
39 38 0 26.6 osh-native mut+alloc+free
28 28 0 7.9 osh-native mut+alloc+free+gc
29 29 0 7.9 osh-native mut+alloc+free+gc+exit
54 50 4 35.8 _bin/cxx-opt+nopool/osh mut+alloc
37 33 4 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
74 70 4 3.1 bash -
167 100 68 55.3 bumpleak/osh mut
181 121 60 55.9 _bin/cxx-opt+bumproot/osh mut
195 134 61 56.2 _bin/cxx-opt+bumpsmall/osh mut+alloc
212 132 80 47.1 osh-native mut+alloc
222 131 91 48.8 osh-native mut+alloc+free
185 128 56 8.8 osh-native mut+alloc+free+gc
184 120 64 8.7 osh-native mut+alloc+free+gc+exit
235 167 68 64.0 _bin/cxx-opt+nopool/osh mut+alloc
214 130 83 9.9 _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 8 2 3.4 dash -
20 11 9 4.3 bash -
18 11 8 3.5 zsh -
20 9 11 12.3 bumpleak/osh mut
20 12 9 13.2 _bin/cxx-opt+bumproot/osh mut
22 15 8 12.9 _bin/cxx-opt+bumpsmall/osh mut+alloc
22 15 7 10.9 osh-native mut+alloc
24 15 9 11.0 osh-native mut+alloc+free
23 18 6 8.8 osh-native mut+alloc+free+gc
23 12 12 8.8 osh-native mut+alloc+free+gc+exit
25 14 12 12.5 _bin/cxx-opt+nopool/osh mut+alloc
26 21 5 9.8 _bin/cxx-opt+nopool/osh mut+alloc+free+gc