YJIT Benchmarks

Details for Benchmarks at 2022-11-23 20:10:13

Overall YJIT is 34.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.3% 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 5 209 5 209
hexapdf 5 15 5 15
liquid-render 5 156 5 156
mail 5 124 5 124
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 277 5 277
binarytrees 5 85 5 85
chunky_png 5 32 5 32
erubi 5 67 5 67
erubi_rails 5 1126 5 1126
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 229 5 229
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 47 5 47
30k_methods 5 20 5 20
cfunc_itself 5 494 5 494
fib 5 327 5 327
getivar 5 427 5 427
keyword_args 5 383 5 383
respond_to 5 710 5 710
setivar 5 394 5 394
str_concat 5 442 5 442

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) 2285351 2284921 25 368 6 1% 0 0 0
hexapdf (click) 1715497 1714301 820 9840 218 2% 0 0 0
liquid-render (click) 581736 581485 156 1808 34 1% 0 0 0
mail (click) 1318802 1318393 373 5145 176 3% 0 0 0
psych-load (click) 788413 787722 70 607 19 3% 0 0 0
railsbench (click) 5550017 5547941 1779 13744 484 3% 0 0 0
ruby-lsp (click) 5353787 5353712 6425 40174 1521 3% 12604 0 0
binarytrees (click) 133929 132892 16 139 4 2% 0 0 0
chunky_png (click) 813790 812752 89 1162 31 2% 0 0 0
erubi (click) 738817 738380 13 147 4 2% 0 0 0
erubi_rails (click) 4692436 4691748 329 2679 111 4% 0 0 0
etanni (click) 134653 133499 13 107 4 3% 0 0 0
fannkuchredux (click) 145882 143945 13 269 4 1% 0 0 0
lee (click) 811870 811574 79 804 25 3% 0 0 0
nbody (click) 146950 144656 15 235 6 2% 0 0 0
optcarrot (click) 548357 545827 203 4071 93 2% 0 0 0
rubykon (click) 276768 274921 146 1612 32 1% 0 0 0
30k_ifelse (click) 5403340 5403064 9268 57196 4 0% 0 0 0
30k_methods (click) 2093810 2091944 5787 19425 4 0% 0 0 0
cfunc_itself (click) 131837 131421 13 122 4 3% 0 0 0
fib (click) 130362 128068 13 111 4 3% 0 0 0
getivar (click) 132178 131782 13 138 4 2% 0 0 0
keyword_args (click) 125244 124370 14 124 4 3% 0 0 0
respond_to (click) 124919 124144 13 138 5 3% 0 0 0
setivar (click) 132610 132071 13 111 4 3% 0 0 0
str_concat (click) 132080 131614 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.