YJIT Benchmarks

Details for Benchmarks at 2022-08-06 20:13:59

Overall YJIT is 35.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.0% 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 5 179 75 179 20 179
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 65 75 65 20 65
chunky_png 5 31 75 31 20 31
erubi 5 61 75 61 20 61
erubi_rails 5 1021 75 1021 20 1021
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 437 75 437 20 437
fib 5 315 75 315 20 315
getivar 5 608 75 608 20 608
keyword_args 5 379 75 379 20 379
respond_to 5 103 75 103 20 103
setivar 5 957 75 957 20 957
str_concat 5 460 75 460 20 460

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) 1037851 780586 131 1292 0 0% 0 0 0
hexapdf (click) 1150107 923787 683 8014 9 0% 0 0 0
liquid-render (click) 521819 405680 150 1701 2 0% 0 0 0
mail (click) 907291 654634 374 5395 17 0% 0 0 0
psych-load (click) 347419 263273 68 482 1 0% 0 0 0
railsbench (click) 2654875 1965597 1436 10025 16 0% 0 0 0
binarytrees (click) 171931 128248 13 58 0 0% 0 0 0
chunky_png (click) 389211 290535 88 1027 0 0% 0 0 0
erubi (click) 322907 245914 10 79 0 0% 0 0 0
erubi_rails (click) 1961435 1428821 300 2025 4 0% 0 0 0
fannkuchredux (click) 185755 138378 10 188 0 0% 0 0 0
lee (click) 385243 290684 58 632 0 0% 0 0 0
nbody (click) 182555 137443 12 171 0 0% 0 0 0
optcarrot (click) 513947 442610 207 3588 20 0% 0 0 0
rubykon (click) 321371 257161 144 1573 1 0% 0 0 0
30k_ifelse (click) 5560987 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2176155 1657178 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170459 127021 10 49 0 0% 0 0 0
fib (click) 168923 126629 10 38 0 0% 0 0 0
getivar (click) 170651 128716 10 65 0 0% 0 0 0
keyword_args (click) 171291 127662 11 51 0 0% 0 0 0
respond_to (click) 172571 128475 10 64 0 0% 0 0 0
setivar (click) 170587 127536 10 38 0 0% 0 0 0
str_concat (click) 170587 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.