YJIT Benchmarks

Details for Benchmarks at 2022-05-24 07:13:10

Overall YJIT is 31.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.9% faster than CRuby!
The basic "faster" measurement is the geomean of all "headlining" x86 benchmarks on this page.

Headlining Benchmarks

These are "headlining" because the "overall" speedup above is based on these benchmarks specifically.

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

Other Benchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

MicroBenchmarks

Speed of each Ruby implementation (iterations/second) relative to the CRuby interpreter. Higher is better.

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Benchmarks Speed Details

Benchmark Memory Usage Details

Number of Iterations and Warmups Tested

bench No JIT warmups No JIT iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 137 75 137 20 137
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 797 75 797 20 797
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 276 75 276 20 276
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 432 75 432 20 432
fib 5 320 75 320 20 320
getivar 5 762 75 762 20 762
keyword_args 5 372 75 372 20 372
respond_to 5 107 75 107 20 107
setivar 5 1844 75 1844 20 1844
str_concat 5 201 75 201 20 201

Different Ruby configurations want different amounts of warmup. With no JIT, CRuby needs hardly any. YJIT and MJIT 3.0 both warm up quite quickly, while MJIT in 3.1 often slows down for a time as it compiles, after an unpredictable delay.

Benchmark YJIT Stats

Hover your cursor over the benchmark names for descriptions of each benchmark.

bench Exit Report Inline Outlined Comp iSeqs Comp Blocks Inval Inval Ratio Bind Alloc Bind Set Const Bumps
activerecord (click) 1014107 753706 131 1271 0 0% 0 0 0
hexapdf (click) 1118747 877632 682 7742 9 0% 0 0 0
liquid-render (click) 505691 387809 150 1556 2 0% 0 0 0
mail (click) 918043 661676 374 5575 15 0% 0 0 0
psych-load (click) 338587 253546 68 473 1 0% 0 0 0
railsbench (click) 2623515 1916052 1436 9698 16 0% 0 0 0
binarytrees (click) 173083 129530 13 58 0 0% 0 0 0
chunky_png (click) 377819 282213 88 1004 0 0% 0 0 0
discourse (click) 5904283 4379320 3161 25150 82 0% 2 0 0
erubi (click) 316507 240600 10 79 0 0% 0 0 0
erubi_rails (click) 1951899 1403809 300 2035 4 0% 0 0 0
fannkuchredux (click) 186587 139932 10 188 0 0% 0 0 0
lee (click) 376155 281874 58 622 0 0% 0 0 0
nbody (click) 182043 136435 12 158 0 0% 0 0 0
optcarrot (click) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 317659 250445 145 1535 1 0% 0 0 0
30k_ifelse (click) 5562139 4349854 9265 57804 0 0% 0 0 0
30k_methods (click) 2176795 1658020 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171099 127863 10 49 0 0% 0 0 0
fib (click) 170907 128332 10 38 0 0% 0 0 0
getivar (click) 171867 130278 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 173723 129613 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 171803 129122 12 62 0 0% 0 0 0

YJIT stats correspond to the YJIT stats exit report.

Note: currently, all stats are collected on x86_64, not ARM.

Raw JSON data files

All graphs and table data in this page comes from processing these data files, which come from benchmark runs.