YJIT Benchmarks

Details for Benchmarks at 2022-08-22 05:31:59

Overall YJIT is 35.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.0% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 127 75 127 20 127
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 60 75 60 20 60
erubi_rails 5 1015 75 1015 20 1015
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 37 15 20 15
30k_ifelse 5 55 64 55 20 55
30k_methods 5 22 22 22 20 22
cfunc_itself 5 430 75 430 20 430
fib 5 315 75 315 20 315
getivar 5 618 75 618 20 618
keyword_args 5 363 75 363 20 363
respond_to 5 107 75 107 20 107
setivar 5 980 75 980 20 980
str_concat 5 433 75 433 20 433

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) 1036251 779593 131 1259 0 0% 0 0 0
hexapdf (click) 1149531 923596 682 8012 10 0% 0 0 0
liquid-render (click) 520347 404777 150 1703 2 0% 0 0 0
mail (click) 937691 674565 374 5713 17 0% 0 0 0
psych-load (click) 346907 263055 68 480 1 0% 0 0 0
railsbench (click) 2655643 1966530 1436 10033 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 389083 291381 88 1004 0 0% 0 0 0
erubi (click) 331419 252457 10 79 0 0% 0 0 0
erubi_rails (click) 1962651 1429881 300 2026 4 0% 0 0 0
fannkuchredux (click) 184667 137184 10 196 0 0% 0 0 0
lee (click) 385115 290541 58 632 0 0% 0 0 0
nbody (click) 181659 136946 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320667 256741 144 1576 1 0% 0 0 0
30k_ifelse (click) 5560155 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169499 126474 10 49 0 0% 0 0 0
fib (click) 168027 126132 10 38 0 0% 0 0 0
getivar (click) 169819 128219 10 65 0 0% 0 0 0
keyword_args (click) 170331 127115 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 169755 127039 10 38 0 0% 0 0 0
str_concat (click) 169755 127371 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.