YJIT Benchmarks

Details for Benchmarks at 2022-05-10 07:17:59

Overall YJIT is 28.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.6% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 137 75 137 20 137
mail 5 106 75 106 20 106
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 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 45 75 45 20 45
erubi_rails 5 810 75 810 20 810
fannkuchredux 5 15 73 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 26 15 20 15
30k_ifelse 5 52 75 52 20 52
30k_methods 5 22 29 22 20 22
cfunc_itself 5 441 75 441 20 441
fib 5 320 75 320 20 320
getivar 5 762 75 762 20 762
keyword_args 5 381 75 381 20 381
respond_to 5 102 75 102 20 102
setivar 5 1859 75 1859 20 1859
str_concat 5 193 75 193 20 193

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) 1011291 751212 131 1232 0 0% 0 0 0
hexapdf (click) 1115035 874034 683 7704 10 0% 0 0 0
liquid-render (click) 507483 388604 150 1586 2 0% 0 0 0
mail (click) 914907 660895 374 5545 15 0% 0 0 0
psych-load (click) 341403 256177 68 474 1 0% 0 0 0
railsbench (click) 2619419 1912275 1435 9797 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 379611 283640 88 988 0 0% 0 0 0
discourse (click) 5913051 4379120 3196 25407 83 0% 2 0 0
erubi (click) 322395 242528 10 79 0 0% 0 0 0
erubi_rails (click) 1931867 1389486 300 1995 4 0% 0 0 0
fannkuchredux (click) 185883 139427 10 188 0 0% 0 0 0
lee (click) 377435 283058 58 618 0 0% 0 0 0
nbody (click) 181339 135930 12 158 0 0% 0 0 0
optcarrot (click) 512539 441179 207 3571 20 0% 0 0 0
rubykon (click) 320731 253367 144 1588 1 0% 0 0 0
30k_ifelse (click) 5560923 4349053 9265 57804 0 0% 0 0 0
30k_methods (click) 2176091 1657515 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170267 127223 10 49 0 0% 0 0 0
fib (click) 168795 126966 10 38 0 0% 0 0 0
getivar (click) 170651 129477 10 65 0 0% 0 0 0
keyword_args (click) 171227 127999 11 51 0 0% 0 0 0
respond_to (click) 172507 128812 10 64 0 0% 0 0 0
setivar (click) 170587 128001 10 38 0 0% 0 0 0
str_concat (click) 170587 128321 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.