YJIT Benchmarks

Details for Benchmarks at 2022-12-04 20:10:05

Overall YJIT is 37.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 40.0% 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 YJIT warmups YJIT iters
activerecord 5 194 5 194
hexapdf 5 15 5 15
liquid-render 5 154 5 154
mail 5 139 5 139
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 283 5 283
binarytrees 5 86 5 86
chunky_png 5 30 5 30
erubi 5 68 5 68
erubi_rails 5 1081 5 1081
etanni 5 42 5 42
fannkuchredux 5 21 5 21
lee 5 22 5 22
nbody 5 267 5 267
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 49 5 49
30k_methods 5 20 5 20
cfunc_itself 5 494 5 494
fib 5 327 5 327
getivar 5 436 5 436
keyword_args 5 384 5 384
respond_to 5 688 5 688
setivar 5 1360 5 1360
str_concat 5 500 5 500

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) 2271902 2270726 25 400 6 1% 0 0 0
hexapdf (click) 1691673 1690348 819 10221 216 2% 0 0 0
liquid-render (click) 576857 575731 156 1841 33 1% 0 0 0
mail (click) 1228650 1228229 373 4598 176 3% 0 0 0
psych-load (click) 782707 781308 70 649 19 2% 0 0 0
railsbench (click) 5508867 5506943 1779 14243 482 3% 0 0 0
ruby-lsp (click) 5351706 5349967 6428 41482 1523 3% 14404 0 0
binarytrees (click) 124448 123885 16 139 4 2% 0 0 0
chunky_png (click) 798563 797376 89 1183 31 2% 0 0 0
erubi (click) 730450 730096 13 147 4 2% 0 0 0
erubi_rails (click) 4646431 4645317 329 2784 111 3% 0 0 0
etanni (click) 125222 124370 13 107 4 3% 0 0 0
fannkuchredux (click) 143849 142353 14 272 4 1% 0 0 0
lee (click) 804703 804094 79 812 25 3% 0 0 0
nbody (click) 137214 135367 15 244 6 2% 0 0 0
optcarrot (click) 563020 561187 203 4438 93 2% 0 0 0
rubykon (click) 264352 263532 146 1638 31 1% 0 0 0
30k_ifelse (click) 5273613 5273070 9268 57199 4 0% 0 0 0
30k_methods (click) 2028811 2026984 5787 19426 4 0% 0 0 0
cfunc_itself (click) 130751 128452 13 122 4 3% 0 0 0
fib (click) 121224 119387 13 111 4 3% 0 0 0
getivar (click) 129935 127975 13 138 4 2% 0 0 0
keyword_args (click) 123300 123069 14 124 4 3% 0 0 0
respond_to (click) 130085 128068 13 138 5 3% 0 0 0
setivar (click) 121749 119789 13 118 4 3% 0 0 0
str_concat (click) 129841 127882 15 137 6 4% 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.