YJIT Benchmarks

Details for Benchmarks at 2022-09-10 20:11:54

Overall YJIT is 34.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.4% 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 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 162 75 162 20 162
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 1034 75 1034 20 1034
fannkuchredux 5 15 56 15 20 15
lee 5 20 75 20 20 20
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 72 55 20 55
30k_methods 5 25 22 25 20 25
cfunc_itself 5 440 75 440 20 440
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 378 75 378 20 378
respond_to 5 106 75 106 20 106
setivar 5 488 75 488 20 488
str_concat 5 450 75 450 20 450

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) 1072503 777767 131 1268 0 0% 0 0 0
hexapdf (click) 1185143 919781 682 8022 10 0% 0 0 0
liquid-render (click) 531831 399087 150 1673 2 0% 0 0 0
mail (click) 959927 667448 374 5629 17 0% 0 0 0
psych-load (click) 358135 261880 68 480 1 0% 0 0 0
railsbench (click) 2751287 1962328 1436 10042 16 0% 0 0 0
binarytrees (click) 176759 127226 13 58 0 0% 0 0 0
chunky_png (click) 398071 287356 88 979 0 0% 0 0 0
erubi (click) 343159 251257 10 79 0 0% 0 0 0
erubi_rails (click) 2040759 1428935 300 2034 4 0% 0 0 0
fannkuchredux (click) 190839 137094 10 196 0 0% 0 0 0
lee (click) 398391 289338 58 634 0 0% 0 0 0
nbody (click) 187127 136097 12 171 0 0% 0 0 0
optcarrot (click) 532791 441672 207 3591 20 0% 0 0 0
rubykon (click) 331063 256321 144 1583 1 0% 0 0 0
30k_ifelse (click) 5664183 4347394 9265 57804 0 0% 0 0 0
30k_methods (click) 2209463 1656256 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174583 125725 10 49 0 0% 0 0 0
fib (click) 172919 125333 10 38 0 0% 0 0 0
getivar (click) 174199 127091 10 65 0 0% 0 0 0
keyword_args (click) 176055 126740 11 51 0 0% 0 0 0
respond_to (click) 176887 127179 10 64 0 0% 0 0 0
setivar (click) 174135 125911 10 38 0 0% 0 0 0
str_concat (click) 175351 126946 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.