YJIT Benchmarks

Details for Benchmarks at 2022-09-16 20:11:43

Overall YJIT is 36.4% 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 5 189 75 189 20 189
hexapdf 5 15 20 15
liquid-render 5 178 75 178 20 178
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 83 75 83 20 83
chunky_png 5 29 75 29 20 29
erubi 5 67 75 67 20 67
erubi_rails 5 1041 75 1041 20 1041
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
nbody 5 266 75 266 20 266
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 67 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 430 75 430 20 430
fib 5 317 75 317 20 317
getivar 5 467 75 467 20 467
keyword_args 5 371 75 371 20 371
respond_to 5 611 75 611 20 611
setivar 5 435 75 435 20 435
str_concat 5 425 75 425 20 425

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) 1065719 776208 131 1283 0 0% 0 0 0
hexapdf (click) 1177015 918424 683 8048 9 0% 0 0 0
liquid-render (click) 524087 397040 150 1667 2 0% 0 0 0
mail (click) 956855 666802 375 5655 17 0% 0 0 0
psych-load (click) 356471 261499 68 474 1 0% 0 0 0
railsbench (click) 2726455 1959743 1436 10068 16 0% 0 0 0
binarytrees (click) 177079 127640 13 64 0 0% 0 0 0
chunky_png (click) 399095 288833 88 1006 0 0% 0 0 0
erubi (click) 340727 250309 10 79 0 0% 0 0 0
erubi_rails (click) 2015543 1424002 300 2036 4 0% 0 0 0
fannkuchredux (click) 189815 136544 10 196 0 0% 0 0 0
lee (click) 397751 289715 58 634 0 0% 0 0 0
nbody (click) 186935 135971 12 171 0 0% 0 0 0
optcarrot (click) 531831 441312 207 3592 20 0% 0 0 0
rubykon (click) 329143 254810 144 1572 1 0% 0 0 0
30k_ifelse (click) 5663863 4347034 9265 57804 0 0% 0 0 0
30k_methods (click) 2208503 1655756 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174327 125549 10 49 0 0% 0 0 0
fib (click) 172727 125207 10 38 0 0% 0 0 0
getivar (click) 174391 127244 10 65 0 0% 0 0 0
keyword_args (click) 175095 126240 11 51 0 0% 0 0 0
respond_to (click) 174647 126813 10 64 0 0% 0 0 0
setivar (click) 174071 125854 10 38 0 0% 0 0 0
str_concat (click) 174327 126396 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.