YJIT Benchmarks

Details for Benchmarks at 2022-08-11 20:13:55

Overall YJIT is 34.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.2% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 60 75 60 20 60
chunky_png 5 30 75 30 20 30
erubi 5 63 75 63 20 63
erubi_rails 5 1039 75 1039 20 1039
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 263 75 263 20 263
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 5 414 75 414 20 414
fib 5 315 75 315 20 315
getivar 5 617 75 617 20 617
keyword_args 5 362 75 362 20 362
respond_to 5 109 75 109 20 109
setivar 5 991 75 991 20 991
str_concat 5 440 75 440 20 440

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) 1037019 780208 131 1281 0 0% 0 0 0
hexapdf (click) 1148507 922700 682 8017 9 0% 0 0 0
liquid-render (click) 519579 404458 150 1676 2 0% 0 0 0
mail (click) 911643 657942 374 5430 17 0% 0 0 0
psych-load (click) 347355 263483 68 480 1 0% 0 0 0
railsbench (click) 2657627 1968365 1436 10036 16 0% 0 0 0
binarytrees (click) 172187 128626 13 58 0 0% 0 0 0
chunky_png (click) 384923 287781 88 1004 0 0% 0 0 0
erubi (click) 323099 246292 10 79 0 0% 0 0 0
erubi_rails (click) 1961371 1429114 300 2026 4 0% 0 0 0
fannkuchredux (click) 186139 138394 10 196 0 0% 0 0 0
lee (click) 384091 290010 58 632 0 0% 0 0 0
nbody (click) 182811 137821 12 171 0 0% 0 0 0
optcarrot (click) 514203 442988 207 3588 20 0% 0 0 0
rubykon (click) 321755 257639 144 1576 1 0% 0 0 0
30k_ifelse (click) 5561243 4349094 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657556 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127399 10 49 0 0% 0 0 0
fib (click) 169179 127007 10 38 0 0% 0 0 0
getivar (click) 170907 129094 10 65 0 0% 0 0 0
keyword_args (click) 171099 127744 11 51 0 0% 0 0 0
respond_to (click) 172827 128853 10 64 0 0% 0 0 0
setivar (click) 170843 127914 10 38 0 0% 0 0 0
str_concat (click) 170843 128246 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.