YJIT Benchmarks

Details for Benchmarks at 2022-09-12 20:12:57

Overall YJIT is 34.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.8% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 160 75 160 20 160
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 62 75 62 20 62
chunky_png 5 30 75 30 20 30
erubi 5 68 75 68 20 68
erubi_rails 5 1043 75 1043 20 1043
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 68 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 436 75 436 20 436
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 380 75 380 20 380
respond_to 5 104 75 104 20 104
setivar 5 487 75 487 20 487
str_concat 5 454 75 454 20 454

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) 1072951 778456 131 1280 0 0% 0 0 0
hexapdf (click) 1182839 917779 682 8015 9 0% 0 0 0
liquid-render (click) 529207 397607 150 1646 2 0% 0 0 0
mail (click) 939383 653801 374 5398 17 0% 0 0 0
psych-load (click) 358519 262073 68 482 1 0% 0 0 0
railsbench (click) 2755703 1964199 1436 10068 16 0% 0 0 0
binarytrees (click) 176759 127226 13 58 0 0% 0 0 0
chunky_png (click) 402167 290078 88 1009 0 0% 0 0 0
erubi (click) 343159 251332 10 79 0 0% 0 0 0
erubi_rails (click) 2039671 1428391 300 2022 4 0% 0 0 0
fannkuchredux (click) 190775 137044 10 196 0 0% 0 0 0
lee (click) 399671 290400 58 634 0 0% 0 0 0
nbody (click) 186807 135931 12 171 0 0% 0 0 0
optcarrot (click) 532791 441672 207 3591 20 0% 0 0 0
rubykon (click) 332919 257628 144 1597 1 0% 0 0 0
30k_ifelse (click) 5663863 4347041 9265 57804 0 0% 0 0 0
30k_methods (click) 2208247 1655616 5784 19361 0 0% 0 0 0
cfunc_itself (click) 173943 125346 10 49 0 0% 0 0 0
fib (click) 172407 125004 10 38 0 0% 0 0 0
getivar (click) 174711 127420 10 65 0 0% 0 0 0
keyword_args (click) 174775 126037 11 51 0 0% 0 0 0
respond_to (click) 176695 127203 10 64 0 0% 0 0 0
setivar (click) 175351 126564 10 38 0 0% 0 0 0
str_concat (click) 174071 126243 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.