YJIT Benchmarks

Details for Benchmarks at 2022-07-29 20:13:50

Overall YJIT is 37.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 38.9% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 151 75 151 20 151
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 31 75 31 20 31
erubi 5 62 75 62 20 62
erubi_rails 5 1032 75 1032 20 1032
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 53 75 53 20 53
30k_methods 5 23 29 23 20 23
cfunc_itself 5 446 75 446 20 446
fib 5 315 75 315 20 315
getivar 5 611 75 611 20 611
keyword_args 5 377 75 377 20 377
respond_to 5 105 75 105 20 105
setivar 5 961 75 961 20 961
str_concat 5 467 75 467 20 467

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) 1038363 781521 131 1291 0 0% 0 0 0
hexapdf (click) 1150747 925345 683 8015 9 0% 0 0 0
liquid-render (click) 516571 401973 150 1643 2 0% 0 0 0
mail (click) 931099 671013 374 5629 17 0% 0 0 0
psych-load (click) 347739 263625 68 480 1 0% 0 0 0
railsbench (click) 2664027 1973248 1436 10067 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 385947 288895 88 996 0 0% 0 0 0
erubi (click) 323547 246809 10 79 0 0% 0 0 0
erubi_rails (click) 1959707 1428356 300 2002 4 0% 0 0 0
fannkuchredux (click) 185563 138208 10 188 0 0% 0 0 0
lee (click) 384539 290327 58 632 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 321563 256983 144 1574 1 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2175963 1657008 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170267 126851 10 49 0 0% 0 0 0
fib (click) 168731 126459 10 38 0 0% 0 0 0
getivar (click) 170971 128842 10 65 0 0% 0 0 0
keyword_args (click) 171611 127788 11 51 0 0% 0 0 0
respond_to (click) 172379 128305 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170843 128069 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.