YJIT Benchmarks

Details for Benchmarks at 2022-04-28 07:17:37

Overall YJIT is 33.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.9% 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 5 184 75 184 20 184
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 120 75 120 20 120
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 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 978 75 978 20 978
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 320 75 320 20 320
getivar 5 777 75 777 20 777
keyword_args 5 372 75 372 20 372
respond_to 5 108 75 108 20 108
setivar 5 1801 75 1801 20 1801
str_concat 15 15 15 15 15 15

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) 1000795 743180 131 1242 0 0% 0 0 0
hexapdf (click) 1087963 851598 683 7464 9 0% 0 0 0
liquid-render (click) 506651 387584 150 1644 2 0% 0 0 0
mail (click) 717339 538439 374 3451 15 0% 0 0 0
psych-load (click) 333339 250346 68 457 1 0% 0 0 0
railsbench (click) 2608923 1904883 1435 9783 16 0% 0 0 0
binarytrees (click) 163611 122786 13 54 0 0% 0 0 0
chunky_png (click) 366363 273493 88 929 0 0% 0 0 0
discourse (click) 5878683 4356796 3197 25240 83 0% 2 0 0
erubi (click) 316315 237816 10 79 0 0% 0 0 0
erubi_rails (click) 1920795 1381202 300 1978 4 0% 0 0 0
fannkuchredux (click) 178395 133882 10 188 0 0% 0 0 0
lee (click) 371675 278449 58 618 0 0% 0 0 0
nbody (click) 172571 129555 12 146 0 0% 0 0 0
optcarrot (click) 452443 389440 207 3017 20 0% 0 0 0
rubykon (click) 274971 215591 144 1162 0 0% 0 0 0
30k_ifelse (click) 5553371 4343508 9265 57804 0 0% 0 0 0
30k_methods (click) 2168603 1651970 5784 19361 0 0% 0 0 0
cfunc_itself (click) 162907 121813 10 49 0 0% 0 0 0
fib (click) 161371 121421 10 38 0 0% 0 0 0
getivar (click) 161307 121507 10 34 0 0% 0 0 0
keyword_args (click) 163675 122454 11 51 0 0% 0 0 0
respond_to (click) 165019 123267 10 64 0 0% 0 0 0
setivar (click) 163099 122456 10 38 0 0% 0 0 0
str_concat (click) 161819 121467 12 41 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.