YJIT Benchmarks

Details for Benchmarks at 2022-05-07 07:13:04

Overall YJIT is 34.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.6% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 153 75 153 20 153
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 30 75 30 20 30
discourse 5 38 75 38 20 38
erubi 5 47 75 47 20 47
erubi_rails 5 998 75 998 20 998
fannkuchredux 5 15 73 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 319 75 319 20 319
getivar 5 764 75 764 20 764
keyword_args 5 377 75 377 20 377
respond_to 5 105 75 105 20 105
setivar 5 1857 75 1857 20 1857
str_concat 5 199 75 199 20 199

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) 1010267 750449 131 1228 0 0% 0 0 0
hexapdf (click) 1114267 873630 682 7698 10 0% 0 0 0
liquid-render (click) 506075 387958 150 1571 2 0% 0 0 0
mail (click) 887643 642632 374 5283 15 0% 0 0 0
psych-load (click) 339035 254845 68 457 1 0% 0 0 0
railsbench (click) 2623963 1915990 1435 9847 16 0% 0 0 0
binarytrees (click) 173211 129880 13 58 0 0% 0 0 0
chunky_png (click) 376219 281292 88 968 0 0% 0 0 0
discourse (click) 5850203 4334546 3162 24947 80 0% 2 0 0
erubi (click) 321883 242174 10 79 0 0% 0 0 0
erubi_rails (click) 1929883 1388060 300 1981 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 378523 284107 58 618 0 0% 0 0 0
nbody (click) 182683 137081 12 158 0 0% 0 0 0
optcarrot (click) 514139 442708 207 3571 20 0% 0 0 0
rubykon (click) 318043 251059 144 1540 1 0% 0 0 0
30k_ifelse (click) 5562267 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2181019 1660004 5784 19387 0 0% 0 0 0
cfunc_itself (click) 171227 128213 10 49 0 0% 0 0 0
fib (click) 170459 128495 10 38 0 0% 0 0 0
getivar (click) 171995 130628 10 65 0 0% 0 0 0
keyword_args (click) 172571 129150 11 51 0 0% 0 0 0
respond_to (click) 173851 129963 10 64 0 0% 0 0 0
setivar (click) 171931 129152 10 38 0 0% 0 0 0
str_concat (click) 171931 129472 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.