YJIT Benchmarks

Details for Benchmarks at 2022-08-13 05:13:31

Overall YJIT is 34.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 37.3% 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 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1033 75 1033 20 1033
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 23 29 23 20 23
cfunc_itself 5 416 75 416 20 416
fib 5 315 75 315 20 315
getivar 5 619 75 619 20 619
keyword_args 5 359 75 359 20 359
respond_to 5 108 75 108 20 108
setivar 5 991 75 991 20 991
str_concat 5 446 75 446 20 446

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) 1035355 778442 131 1271 0 0% 0 0 0
hexapdf (click) 1149403 923534 682 8010 9 0% 0 0 0
liquid-render (click) 519259 404114 150 1679 2 0% 0 0 0
mail (click) 923035 664437 374 5560 17 0% 0 0 0
psych-load (click) 347355 263248 68 482 1 0% 0 0 0
railsbench (click) 2668507 1976894 1436 10099 16 0% 0 0 0
binarytrees (click) 171611 127963 13 58 0 0% 0 0 0
chunky_png (click) 386651 289604 88 999 0 0% 0 0 0
erubi (click) 323675 246820 10 79 0 0% 0 0 0
erubi_rails (click) 1963995 1430671 300 2049 4 0% 0 0 0
fannkuchredux (click) 185819 138016 10 196 0 0% 0 0 0
lee (click) 386075 291590 58 632 0 0% 0 0 0
nbody (click) 182491 137443 12 171 0 0% 0 0 0
optcarrot (click) 513883 442610 207 3588 20 0% 0 0 0
rubykon (click) 321947 257357 144 1579 1 0% 0 0 0
30k_ifelse (click) 5560923 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2175643 1656882 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169947 126725 10 49 0 0% 0 0 0
fib (click) 168859 126629 10 38 0 0% 0 0 0
getivar (click) 170587 128716 10 65 0 0% 0 0 0
keyword_args (click) 171227 127662 11 51 0 0% 0 0 0
respond_to (click) 172507 128475 10 64 0 0% 0 0 0
setivar (click) 170523 127536 10 38 0 0% 0 0 0
str_concat (click) 170523 127868 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.