YJIT Benchmarks

Details for Benchmarks at 2022-08-09 20:13:57

Overall YJIT is 36.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.7% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 129 75 129 20 129
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 31 75 31 20 31
erubi 5 61 75 61 20 61
erubi_rails 5 1039 75 1039 20 1039
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
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 23 29 23 20 23
cfunc_itself 5 440 75 440 20 440
fib 5 315 75 315 20 315
getivar 5 610 75 610 20 610
keyword_args 5 376 75 376 20 376
respond_to 5 107 75 107 20 107
setivar 5 958 75 958 20 958
str_concat 5 467 75 467 20 467

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) 1035419 778966 131 1264 0 0% 0 0 0
hexapdf (click) 1150875 924351 683 8020 9 0% 0 0 0
liquid-render (click) 518939 403696 150 1676 2 0% 0 0 0
mail (click) 942299 678099 374 5770 17 0% 0 0 0
psych-load (click) 347035 263080 68 480 1 0% 0 0 0
railsbench (click) 2656475 1966549 1436 10017 16 0% 0 0 0
binarytrees (click) 171419 127952 13 58 0 0% 0 0 0
chunky_png (click) 385499 288668 88 997 0 0% 0 0 0
erubi (click) 322843 245914 10 79 0 0% 0 0 0
erubi_rails (click) 1964443 1431311 300 2047 4 0% 0 0 0
fannkuchredux (click) 185243 138082 10 188 0 0% 0 0 0
lee (click) 385115 290734 58 632 0 0% 0 0 0
nbody (click) 182491 137443 12 171 0 0% 0 0 0
optcarrot (click) 513883 442610 207 3588 20 0% 0 0 0
rubykon (click) 320923 256912 144 1572 1 0% 0 0 0
30k_ifelse (click) 5560923 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2176091 1657178 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127021 10 49 0 0% 0 0 0
fib (click) 168859 126629 10 38 0 0% 0 0 0
getivar (click) 170139 128420 10 65 0 0% 0 0 0
keyword_args (click) 171227 127662 11 51 0 0% 0 0 0
respond_to (click) 172507 128475 10 64 0 0% 0 0 0
setivar (click) 170523 127536 10 38 0 0% 0 0 0
str_concat (click) 170075 127572 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.