YJIT Benchmarks

Details for Benchmarks at 2022-10-20 20:10:42

Overall YJIT is 37.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.5% 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 5 204 5 204
hexapdf 5 15 5 15
liquid-render 5 177 5 177
mail 5 127 5 127
psych-load 5 15 5 15
railsbench 5 15 5 15
binarytrees 5 86 5 86
chunky_png 5 32 5 32
erubi 5 67 5 67
erubi_rails 5 1080 5 1080
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 247 5 247
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 49 5 49
30k_methods 5 20 5 20
cfunc_itself 5 476 5 476
fib 5 326 5 326
getivar 5 426 5 426
keyword_args 5 387 5 387
respond_to 5 706 5 706
setivar 5 402 5 402
str_concat 5 438 5 438

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) 4676514 4682465 23 316 6 1% 0 0 0
hexapdf (click) 3671574 3679319 817 9679 189 1% 0 0 0
liquid-render (click) 1429456 1436124 154 1742 34 1% 0 0 0
mail (click) 2825399 2831226 371 4942 176 3% 0 0 0
psych-load (click) 1777174 1783433 68 489 19 3% 0 0 0
railsbench (click) 10227172 10234331 1777 12828 475 3% 0 0 0
binarytrees (click) 590581 598351 14 70 4 5% 0 0 0
chunky_png (click) 1825380 1831656 87 1032 31 3% 0 0 0
erubi (click) 1689457 1697144 11 78 4 5% 0 0 0
erubi_rails (click) 8454949 8462726 327 2448 107 4% 0 0 0
etanni (click) 578237 584271 11 38 4 10% 0 0 0
fannkuchredux (click) 611412 617988 11 200 4 2% 0 0 0
lee (click) 1852419 1860213 77 746 25 3% 0 0 0
nbody (click) 609727 616773 13 179 6 3% 0 0 0
optcarrot (click) 1446548 1453522 201 4001 93 2% 0 0 0
rubykon (click) 886998 894293 143 1564 32 2% 0 0 0
30k_ifelse (click) 11165304 11171339 9266 57127 4 0% 0 0 0
30k_methods (click) 4505787 4513866 5785 19356 4 0% 0 0 0
cfunc_itself (click) 579360 584858 11 53 4 7% 0 0 0
fib (click) 573879 581824 11 42 4 9% 0 0 0
getivar (click) 579980 586390 11 69 4 5% 0 0 0
keyword_args (click) 576659 583660 12 55 4 7% 0 0 0
respond_to (click) 578945 585434 11 55 5 9% 0 0 0
setivar (click) 576125 583333 11 42 4 9% 0 0 0
str_concat (click) 575550 582997 13 68 6 8% 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.