YJIT Benchmarks

Details for Benchmarks at 2022-01-05 07:10:14

Overall YJIT is 29.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.0% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 164 20 164 75 164 20 164
hexapdf 5 15 20 15 20 15
liquid-render 5 136 20 136 75 136 20 136
mail 5 123 20 123 75 123 20 123
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 84 20 84 75 84 20 84
erubi 5 45 20 45 75 45 20 45
erubi_rails 5 531 20 531 75 531 20 531
fannkuchredux 5 15 20 15 54 15 20 15
lee 5 26 20 26 75 26 20 26
nbody 5 341 20 341 75 341 20 341
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 41 15 20 15
30k_ifelse 5 63 20 63 47 63 20 63
30k_methods 5 26 20 26 33 26 20 26
cfunc_itself 5 508 20 508 75 508 20 508
fib 5 382 20 382 75 382 20 382
getivar 5 561 20 561 75 561 20 561
keyword_args 5 434 20 434 75 434 20 434
respond_to 5 121 20 121 75 121 20 121
setivar 5 477 20 477 75 477 20 477

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) 969898 738919 184 1193 0 0% 0 0 0
hexapdf (click) 1118122 911766 599 8117 618 7% 0 0 321
liquid-render (click) 472759 371863 143 1465 96 6% 0 0 1
mail (click) 857450 635460 325 5383 124 2% 0 0 39
psych-load (click) 302506 235713 58 433 1 0% 0 0 0
railsbench (click) 2516258 1901151 1295 9314 266 2% 0 0 26
binarytrees (click) 113061 86294 9 48 0 0% 0 0 0
erubi (click) 272801 213189 8 35 0 0% 0 0 0
erubi_rails (click) 1902946 1420354 260 1978 16 0% 0 0 3
fannkuchredux (click) 129061 98304 6 202 0 0% 0 0 0
lee (click) 330986 259443 44 562 71 12% 0 0 12
nbody (click) 122469 93495 8 148 0 0% 0 0 0
optcarrot (click) 451685 399307 196 3566 20 0% 0 0 0
rubykon (click) 254629 206595 138 1528 2 0% 0 0 0
30k_ifelse (click) 5501669 4306289 9261 57794 0 0% 0 0 0
30k_methods (click) 2116837 1614751 5780 19351 0 0% 0 0 0
cfunc_itself (click) 111141 84594 6 39 0 0% 0 0 0
fib (click) 110117 84531 6 28 0 0% 0 0 0
getivar (click) 111333 86713 6 55 0 0% 0 0 0
keyword_args (click) 112485 85564 7 41 0 0% 0 0 0
respond_to (click) 113765 86377 6 54 0 0% 0 0 0
setivar (click) 111781 85566 6 28 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.