YJIT Benchmarks

Details for Benchmarks at 2022-08-28 05:20:37

Overall YJIT is 35.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.4% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 126 75 126 20 126
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 61 75 61 20 61
erubi_rails 5 1015 75 1015 20 1015
fannkuchredux 5 15 75 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 36 15 20 15
30k_ifelse 5 54 65 54 20 54
30k_methods 5 22 22 22 20 22
cfunc_itself 5 428 75 428 20 428
fib 5 315 75 315 20 315
getivar 5 617 75 617 20 617
keyword_args 5 368 75 368 20 368
respond_to 5 107 75 107 20 107
setivar 5 984 75 984 20 984
str_concat 5 433 75 433 20 433

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) 1038683 781351 131 1284 0 0% 0 0 0
hexapdf (click) 1149723 923576 682 8012 9 0% 0 0 0
liquid-render (click) 514331 399874 150 1643 2 0% 0 0 0
mail (click) 917979 661767 375 5554 17 0% 0 0 0
psych-load (click) 347483 263601 68 482 1 0% 0 0 0
railsbench (click) 2651547 1962368 1436 9983 16 0% 0 0 0
binarytrees (click) 171355 128129 13 58 0 0% 0 0 0
chunky_png (click) 384027 287758 88 984 0 0% 0 0 0
erubi (click) 331675 252835 10 79 0 0% 0 0 0
erubi_rails (click) 1963675 1430065 300 2037 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 383963 289720 58 632 0 0% 0 0 0
nbody (click) 181723 136946 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320219 255956 144 1568 1 0% 0 0 0
30k_ifelse (click) 5560411 4348597 9265 57804 0 0% 0 0 0
30k_methods (click) 2175067 1656396 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 168091 126132 10 38 0 0% 0 0 0
getivar (click) 170075 128597 10 65 0 0% 0 0 0
keyword_args (click) 170459 127165 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 170011 127417 10 38 0 0% 0 0 0
str_concat (click) 169755 127371 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.