YJIT Benchmarks

Details for Benchmarks at 2022-09-11 05:25:25

Overall YJIT is 33.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.6% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 160 75 160 20 160
mail 5 129 75 129 20 129
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 67 75 67 20 67
erubi_rails 5 1030 75 1030 20 1030
fannkuchredux 5 15 54 15 20 15
lee 5 21 75 21 20 21
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 34 15 20 15
30k_ifelse 5 55 71 55 20 55
30k_methods 5 25 24 25 20 25
cfunc_itself 5 434 75 434 20 434
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 383 75 383 20 383
respond_to 5 105 75 105 20 105
setivar 5 488 75 488 20 488
str_concat 5 463 75 463 20 463

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) 1071607 777276 131 1271 0 0% 0 0 0
hexapdf (click) 1185143 919585 682 8026 10 0% 0 0 0
liquid-render (click) 533943 400236 150 1676 2 0% 0 0 0
mail (click) 942071 655995 374 5443 17 0% 0 0 0
psych-load (click) 358519 262023 68 482 1 0% 0 0 0
railsbench (click) 2747383 1960052 1436 10008 16 0% 0 0 0
binarytrees (click) 176759 127226 13 58 0 0% 0 0 0
chunky_png (click) 404855 291304 88 1042 0 0% 0 0 0
erubi (click) 343159 251307 10 79 0 0% 0 0 0
erubi_rails (click) 2039543 1428349 300 2029 4 0% 0 0 0
fannkuchredux (click) 190071 136720 10 196 0 0% 0 0 0
lee (click) 398391 289338 58 634 0 0% 0 0 0
nbody (click) 187959 136521 12 171 0 0% 0 0 0
optcarrot (click) 531575 441019 207 3591 20 0% 0 0 0
rubykon (click) 329399 255096 144 1578 1 0% 0 0 0
30k_ifelse (click) 5664375 4347370 9265 57804 0 0% 0 0 0
30k_methods (click) 2209463 1656256 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175351 126099 10 49 0 0% 0 0 0
fib (click) 173687 125707 10 38 0 0% 0 0 0
getivar (click) 175479 127794 10 65 0 0% 0 0 0
keyword_args (click) 174775 126037 11 51 0 0% 0 0 0
respond_to (click) 176375 126850 10 64 0 0% 0 0 0
setivar (click) 175415 126614 10 38 0 0% 0 0 0
str_concat (click) 174391 126596 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.