YJIT Benchmarks

Details for Benchmarks at 2022-09-19 20:11:41

Overall YJIT is 36.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.9% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 171 75 171 20 171
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 84 75 84 20 84
chunky_png 5 30 75 30 20 30
erubi 5 67 75 67 20 67
erubi_rails 5 1048 75 1048 20 1048
fannkuchredux 5 15 56 15 20 15
lee 5 20 75 20 20 20
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 31 15 20 15
30k_ifelse 5 55 68 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 429 75 429 20 429
fib 5 313 75 313 20 313
getivar 5 467 75 467 20 467
keyword_args 5 371 75 371 20 371
respond_to 5 668 75 668 20 668
setivar 5 400 75 400 20 400
str_concat 5 423 75 423 20 423

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) 1067319 777512 131 1279 0 0% 0 0 0
hexapdf (click) 1175927 917824 682 8036 9 0% 0 0 0
liquid-render (click) 530615 402250 150 1734 2 0% 0 0 0
mail (click) 964791 670226 374 5774 17 0% 0 0 0
psych-load (click) 356151 260910 68 480 1 0% 0 0 0
railsbench (click) 2734647 1964954 1436 10101 16 0% 0 0 0
binarytrees (click) 177143 127690 13 64 0 0% 0 0 0
chunky_png (click) 397751 287119 88 1028 0 0% 0 0 0
erubi (click) 339639 249148 10 79 0 0% 0 0 0
erubi_rails (click) 2022711 1428660 300 2029 4 0% 0 0 0
fannkuchredux (click) 189879 136594 10 196 0 0% 0 0 0
lee (click) 396407 288603 58 634 0 0% 0 0 0
nbody (click) 187319 136374 12 171 0 0% 0 0 0
optcarrot (click) 531703 441027 207 3592 20 0% 0 0 0
rubykon (click) 329847 255605 144 1580 1 0% 0 0 0
30k_ifelse (click) 5664247 4347294 9265 57804 0 0% 0 0 0
30k_methods (click) 2208823 1656109 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174711 125952 10 49 0 0% 0 0 0
fib (click) 173047 125560 10 38 0 0% 0 0 0
getivar (click) 174519 127294 10 65 0 0% 0 0 0
keyword_args (click) 175095 126240 11 51 0 0% 0 0 0
respond_to (click) 174647 126813 10 64 0 0% 0 0 0
setivar (click) 174391 126064 10 38 0 0% 0 0 0
str_concat (click) 174263 126161 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.