YJIT Benchmarks

Details for Benchmarks at 2022-04-23 07:12:32

Overall YJIT is 32.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.6% 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 5 182 75 182 20 182
hexapdf 5 15 20 15
liquid-render 5 154 75 154 20 154
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 30 75 30 20 30
discourse 5 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 986 75 986 20 986
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
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 5 449 75 449 20 449
fib 5 320 75 320 20 320
getivar 5 772 75 772 20 772
keyword_args 5 373 75 373 20 373
respond_to 5 105 75 105 20 105
setivar 5 1803 75 1803 20 1803

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) 991633 813190 185 1185 0 0% 0 0 0
hexapdf (click) 1100497 923054 599 7906 427 5% 0 0 321
liquid-render (click) 504017 425804 143 1539 92 5% 0 0 5
mail (click) 884113 682631 324 5325 96 1% 0 0 111
psych-load (click) 340881 285903 59 434 1 0% 0 0 0
railsbench (click) 2590353 2097380 1297 9318 224 2% 0 0 26
binarytrees (click) 169681 138826 11 58 0 0% 0 0 0
chunky_png (click) 375121 308968 85 859 0 0% 0 0 0
discourse (click) 6197905 5568177 3088 26469 3122 11% 2 0 140
erubi (click) 328465 276192 10 79 0 0% 0 0 0
erubi_rails (click) 1957841 1596927 262 1887 12 0% 0 0 3
fannkuchredux (click) 183441 149524 8 188 0 0% 0 0 0
lee (click) 378513 315736 45 582 68 11% 0 0 13
nbody (click) 178961 146027 10 158 0 0% 0 0 0
optcarrot (click) 505425 451283 198 3575 20 0% 0 0 0
rubykon (click) 308945 257796 140 1516 2 0% 0 0 0
30k_ifelse (click) 5559057 4359361 9263 57806 0 0% 0 0 0
30k_methods (click) 2173137 1667238 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166353 135193 8 50 0 0% 0 0 0
fib (click) 165457 136360 8 38 0 0% 0 0 0
getivar (click) 167441 137686 8 66 0 0% 0 0 0
keyword_args (click) 167249 135834 9 52 0 0% 0 0 0
respond_to (click) 170321 138909 8 64 0 0% 0 0 0
setivar (click) 168465 138098 8 38 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.