YJIT Benchmarks

Details for Benchmarks at 2022-05-05 19:12:58

Overall YJIT is 34.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.7% 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 5 156 75 156 20 156
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 30 75 30 20 30
discourse 5 38 75 38 20 38
erubi 5 46 75 46 20 46
erubi_rails 5 1010 75 1010 20 1010
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 443 75 443 20 443
fib 5 319 75 319 20 319
getivar 5 764 75 764 20 764
keyword_args 5 378 75 378 20 378
respond_to 5 103 75 103 20 103
setivar 5 1857 75 1857 20 1857
str_concat 5 198 75 198 20 198

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) 1012379 751743 131 1242 0 0% 0 0 0
hexapdf (click) 1112539 872018 682 7678 9 0% 0 0 0
liquid-render (click) 511643 391243 150 1622 2 0% 0 0 0
mail (click) 899355 651372 374 5425 15 0% 0 0 0
psych-load (click) 339163 255031 68 457 1 0% 0 0 0
railsbench (click) 2620379 1913703 1435 9821 16 0% 0 0 0
binarytrees (click) 173211 129880 13 58 0 0% 0 0 0
chunky_png (click) 378011 282702 88 987 0 0% 0 0 0
discourse (click) 5924251 4389791 3222 25546 84 0% 2 0 0
erubi (click) 322267 242528 10 79 0 0% 0 0 0
erubi_rails (click) 1928091 1387210 300 1960 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 375067 281276 58 618 0 0% 0 0 0
nbody (click) 182683 137081 12 158 0 0% 0 0 0
optcarrot (click) 513883 442330 207 3571 20 0% 0 0 0
rubykon (click) 318107 250966 144 1534 1 0% 0 0 0
30k_ifelse (click) 5562779 4350533 9265 57804 0 0% 0 0 0
30k_methods (click) 2177435 1658666 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171739 128509 10 49 0 0% 0 0 0
fib (click) 170715 128446 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) 174363 130292 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.