YJIT Benchmarks

Details for Benchmarks at 2022-07-21 05:20:59

Overall YJIT is 36.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.7% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
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 29 75 29 20 29
erubi 5 57 75 57 20 57
erubi_rails 5 1014 75 1014 20 1014
fannkuchredux 5 15 57 15 20 15
lee 5 21 75 21 20 21
nbody 5 260 75 260 20 260
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 315 75 315 20 315
getivar 5 602 75 602 20 602
keyword_args 5 378 75 378 20 378
respond_to 5 107 75 107 20 107
setivar 5 955 75 955 20 955
str_concat 5 377 75 377 20 377

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) 1034011 776319 131 1250 0 0% 0 0 0
hexapdf (click) 1149915 924090 682 7969 10 0% 0 0 0
liquid-render (click) 520859 405297 150 1676 2 0% 0 0 0
mail (click) 905435 653206 374 5363 17 0% 0 0 0
psych-load (click) 346331 262551 68 474 1 0% 0 0 0
railsbench (click) 2658331 1968158 1436 9955 16 0% 0 0 0
binarytrees (click) 172123 128246 13 58 0 0% 0 0 0
chunky_png (click) 387547 290142 88 996 0 0% 0 0 0
erubi (click) 324699 247798 10 79 0 0% 0 0 0
erubi_rails (click) 1960731 1428033 300 2007 4 0% 0 0 0
fannkuchredux (click) 185563 138208 10 188 0 0% 0 0 0
lee (click) 386011 291382 58 630 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 321755 257043 144 1573 1 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2175963 1657008 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127147 10 49 0 0% 0 0 0
fib (click) 168731 126459 10 38 0 0% 0 0 0
getivar (click) 170459 128546 10 65 0 0% 0 0 0
keyword_args (click) 171547 127788 11 51 0 0% 0 0 0
respond_to (click) 172763 128473 10 64 0 0% 0 0 0
setivar (click) 170395 127366 10 38 0 0% 0 0 0
str_concat (click) 171227 128237 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.