YJIT Benchmarks

Details for Benchmarks at 2022-07-19 20:14:15

Overall YJIT is 32.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.5% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 67 75 67 20 67
chunky_png 5 30 75 30 20 30
erubi 5 53 75 53 20 53
erubi_rails 5 1001 75 1001 20 1001
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 260 75 260 20 260
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 23 30 23 20 23
cfunc_itself 5 447 75 447 20 447
fib 5 315 75 315 20 315
getivar 5 613 75 613 20 613
keyword_args 5 379 75 379 20 379
respond_to 5 108 75 108 20 108
setivar 5 958 75 958 20 958
str_concat 5 371 75 371 20 371

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) 1034331 778552 131 1251 0 0% 0 0 0
hexapdf (click) 1149659 927800 682 7940 9 0% 0 0 0
liquid-render (click) 523739 409565 150 1709 2 0% 0 0 0
mail (click) 929051 677383 374 5567 17 0% 0 0 0
psych-load (click) 348635 264698 68 476 1 0% 0 0 0
railsbench (click) 2657883 1972634 1436 9941 16 0% 0 0 0
binarytrees (click) 172187 128953 13 58 0 0% 0 0 0
chunky_png (click) 384987 289604 88 992 0 0% 0 0 0
erubi (click) 324059 247898 10 79 0 0% 0 0 0
erubi_rails (click) 1962139 1431964 300 1998 4 0% 0 0 0
fannkuchredux (click) 186459 139936 10 188 0 0% 0 0 0
lee (click) 386459 292510 58 630 0 0% 0 0 0
nbody (click) 183131 138433 12 171 0 0% 0 0 0
optcarrot (click) 514971 445144 207 3588 20 0% 0 0 0
rubykon (click) 321563 258193 144 1568 2 0% 0 0 0
30k_ifelse (click) 5561179 4349277 9265 57804 0 0% 0 0 0
30k_methods (click) 2176667 1658024 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170971 127867 10 49 0 0% 0 0 0
fib (click) 169435 127475 10 38 0 0% 0 0 0
getivar (click) 171291 130186 10 65 0 0% 0 0 0
keyword_args (click) 171803 128508 11 51 0 0% 0 0 0
respond_to (click) 173083 129321 10 64 0 0% 0 0 0
setivar (click) 171163 128510 10 38 0 0% 0 0 0
str_concat (click) 171099 128885 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.