YJIT Benchmarks

Details for Benchmarks at 2022-05-25 07:13:16

Overall YJIT is 32.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.7% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 138 75 138 20 138
mail 5 106 75 106 20 106
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 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 815 75 815 20 815
fannkuchredux 5 15 50 15 20 15
lee 5 22 75 22 20 22
nbody 5 276 75 276 20 276
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 404 75 404 20 404
fib 5 320 75 320 20 320
getivar 5 759 75 759 20 759
keyword_args 5 375 75 375 20 375
respond_to 5 106 75 106 20 106
setivar 5 1849 75 1849 20 1849
str_concat 5 193 75 193 20 193

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) 1016411 755170 131 1246 0 0% 0 0 0
hexapdf (click) 1119707 878347 682 7749 10 0% 0 0 0
liquid-render (click) 516763 395535 150 1657 2 0% 0 0 0
mail (click) 894363 645654 374 5344 15 0% 0 0 0
psych-load (click) 339419 254774 68 457 1 0% 0 0 0
railsbench (click) 2640667 1928183 1436 9859 16 0% 0 0 0
binarytrees (click) 173915 130095 13 58 0 0% 0 0 0
chunky_png (click) 381979 284672 88 1023 0 0% 0 0 0
discourse (click) 5886555 4368093 3162 25013 82 0% 2 0 0
erubi (click) 314203 238814 10 79 0 0% 0 0 0
erubi_rails (click) 1951323 1403505 300 2020 4 0% 0 0 0
fannkuchredux (click) 187739 140658 10 188 0 0% 0 0 0
lee (click) 377947 283277 58 622 0 0% 0 0 0
nbody (click) 182363 136813 12 158 0 0% 0 0 0
optcarrot (click) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 319067 251286 145 1535 1 0% 0 0 0
30k_ifelse (click) 5562971 4350419 9265 57804 0 0% 0 0 0
30k_methods (click) 2177115 1658398 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172443 128724 10 49 0 0% 0 0 0
fib (click) 170907 128332 10 38 0 0% 0 0 0
getivar (click) 172699 130843 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 174875 130556 10 64 0 0% 0 0 0
setivar (click) 171803 128802 10 38 0 0% 0 0 0
str_concat (click) 172635 129687 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.