YJIT Benchmarks

Details for Benchmarks at 2022-08-19 05:19:22

Overall YJIT is 33.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.8% 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 5 155 75 155 20 155
mail 5 127 75 127 20 127
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 30 75 30 20 30
erubi 5 60 75 60 20 60
erubi_rails 5 1037 75 1037 20 1037
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 35 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 23 30 23 20 23
cfunc_itself 5 423 75 423 20 423
fib 5 314 75 314 20 314
getivar 5 628 75 628 20 628
keyword_args 5 359 75 359 20 359
respond_to 5 102 75 102 20 102
setivar 5 993 75 993 20 993
str_concat 5 455 75 455 20 455

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) 1035291 778820 131 1273 0 0% 0 0 0
hexapdf (click) 1150235 924262 682 8018 9 0% 0 0 0
liquid-render (click) 520539 405051 150 1706 2 0% 0 0 0
mail (click) 905627 652932 374 5374 17 0% 0 0 0
psych-load (click) 346715 262702 68 480 1 0% 0 0 0
railsbench (click) 2659291 1968327 1436 10053 16 0% 0 0 0
binarytrees (click) 171035 127751 13 58 0 0% 0 0 0
chunky_png (click) 389467 290948 88 1020 0 0% 0 0 0
erubi (click) 322715 245771 10 79 0 0% 0 0 0
erubi_rails (click) 1960731 1428030 300 2026 4 0% 0 0 0
fannkuchredux (click) 184859 137234 10 196 0 0% 0 0 0
lee (click) 384987 290541 58 632 0 0% 0 0 0
nbody (click) 181659 136946 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 322523 257909 144 1592 2 0% 0 0 0
30k_ifelse (click) 5560027 4348169 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 168027 126132 10 38 0 0% 0 0 0
getivar (click) 169755 128219 10 65 0 0% 0 0 0
keyword_args (click) 170459 127165 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 169499 126754 10 38 0 0% 0 0 0
str_concat (click) 169755 127371 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.