YJIT Benchmarks

Details for Benchmarks at 2022-02-17 19:12:46

Overall YJIT is 32.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.4% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 178 20 178 75 178 20 178
hexapdf 5 15 20 15 20 15
liquid-render 5 153 20 153 75 153 20 153
mail 5 122 20 122 75 122 20 122
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 76 20 76 75 76 20 76
discourse 5 34 20 34 75 34 20 34
erubi 5 48 20 48 75 48 20 48
erubi_rails 5 961 20 961 75 961 20 961
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 21 20 21 75 21 20 21
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 38 15 20 15
30k_ifelse 5 55 20 55 75 55 20 55
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 440 20 440 75 440 20 440
fib 5 320 20 320 75 320 20 320
getivar 5 794 20 794 75 794 20 794
keyword_args 5 377 20 377 75 377 20 377
respond_to 5 102 20 102 75 102 20 102
setivar 5 1680 20 1680 75 1680 20 1680

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) 994193 761829 185 1199 0 0% 0 0 0
hexapdf (click) 1120465 917815 600 8194 613 7% 0 0 321
liquid-render (click) 488337 388614 143 1503 95 6% 0 0 1
mail (click) 901265 675445 324 5512 125 2% 0 0 39
psych-load (click) 335313 265046 59 434 1 0% 0 0 0
railsbench (click) 2535761 1933658 1297 9336 268 2% 0 0 26
binarytrees (click) 151249 115949 11 59 0 0% 0 0 0
discourse (click) 22707025 11405509 3135 285476 261962 91% 2 0 133
erubi (click) 326353 258401 10 79 0 0% 0 0 0
erubi_rails (click) 1908561 1438030 262 1870 18 0% 0 0 3
fannkuchredux (click) 165009 126647 8 189 0 0% 0 0 0
lee (click) 377105 297376 45 587 69 11% 0 0 12
nbody (click) 160529 123150 10 159 0 0% 0 0 0
optcarrot (click) 487761 428780 198 3576 20 0% 0 0 0
rubykon (click) 292049 236003 140 1532 2 0% 0 0 0
30k_ifelse (click) 5540305 4336273 9263 57805 0 0% 0 0 0
30k_methods (click) 2155473 1644735 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149713 114578 8 50 0 0% 0 0 0
fib (click) 148817 114515 8 39 0 0% 0 0 0
getivar (click) 150033 116697 8 66 0 0% 0 0 0
keyword_args (click) 151121 115548 9 52 0 0% 0 0 0
respond_to (click) 152273 116263 8 65 0 0% 0 0 0
setivar (click) 150033 115221 8 39 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.