YJIT Benchmarks

Details for Benchmarks at 2022-10-17 20:10:45

Overall YJIT is 37.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.8% 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 5 203 5 203
hexapdf 5 15 5 15
liquid-render 5 176 5 176
mail 5 126 5 126
psych-load 5 15 5 15
railsbench 5 15 5 15
binarytrees 5 86 5 86
chunky_png 5 31 5 31
erubi 5 66 5 66
erubi_rails 5 1045 5 1045
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 245 5 245
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 57 5 57
30k_methods 5 24 5 24
cfunc_itself 5 487 5 487
fib 5 325 5 325
getivar 5 427 5 427
keyword_args 5 387 5 387
respond_to 5 702 5 702
setivar 5 421 5 421
str_concat 5 408 5 408

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) 4661242 4667062 23 283 6 2% 0 0 0
hexapdf (click) 3637485 3645514 817 9622 189 1% 0 0 0
liquid-render (click) 1429785 1436124 154 1743 34 1% 0 0 0
mail (click) 2826173 2831353 371 4935 176 3% 0 0 0
psych-load (click) 1777138 1783433 68 490 19 3% 0 0 0
railsbench (click) 10223728 10231814 1777 12846 475 3% 0 0 0
binarytrees (click) 591484 599122 14 70 4 5% 0 0 0
chunky_png (click) 1835126 1843274 87 1059 31 2% 0 0 0
erubi (click) 1689777 1697335 11 78 4 5% 0 0 0
erubi_rails (click) 8475928 8482386 327 2468 107 4% 0 0 0
etanni (click) 591909 599381 11 38 4 10% 0 0 0
fannkuchredux (click) 606853 614735 11 200 4 2% 0 0 0
lee (click) 1852419 1860213 77 746 25 3% 0 0 0
nbody (click) 613040 619097 13 179 6 3% 0 0 0
optcarrot (click) 1459055 1466819 201 4001 93 2% 0 0 0
rubykon (click) 886168 893838 143 1560 32 2% 0 0 0
30k_ifelse (click) 11174778 11182531 9266 57127 4 0% 0 0 0
30k_methods (click) 4509366 4516285 5785 19356 4 0% 0 0 0
cfunc_itself (click) 576784 583635 11 53 4 7% 0 0 0
fib (click) 578462 584846 11 42 4 9% 0 0 0
getivar (click) 577400 584367 11 69 4 5% 0 0 0
keyword_args (click) 580150 585499 12 55 4 7% 0 0 0
respond_to (click) 578731 585293 11 55 5 9% 0 0 0
setivar (click) 576234 583333 11 42 4 9% 0 0 0
str_concat (click) 576106 583333 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.