YJIT Benchmarks

Details for Benchmarks at 2022-03-12 07:12:39

Overall YJIT is 31.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.3% 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 5 179 75 179 20 179
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 123 75 123 20 123
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 36 75 36 20 36
erubi 5 48 75 48 20 48
erubi_rails 5 1001 75 1001 20 1001
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 283 75 283 20 283
optcarrot 5 15 75 15 20 15
rubykon 5 15 38 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 450 75 450 20 450
fib 5 320 75 320 20 320
getivar 5 772 75 772 20 772
keyword_args 5 375 75 375 20 375
respond_to 5 103 75 103 20 103
setivar 5 1897 75 1897 20 1897

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) 987921 755907 185 1199 0 0% 0 0 0
hexapdf (click) 1115921 914235 600 8180 614 7% 0 0 320
liquid-render (click) 491729 389411 143 1572 95 6% 0 0 1
mail (click) 859281 644983 325 5116 125 2% 0 0 39
psych-load (click) 330385 260949 59 434 1 0% 0 0 0
railsbench (click) 2536209 1933053 1297 9361 268 2% 0 0 26
binarytrees (click) 143953 109268 11 59 0 0% 0 0 0
chunky_png (click) 363985 283167 85 865 0 0% 0 0 0
discourse (click) 23243409 11594085 3094 294411 271269 92% 2 0 133
erubi (click) 322129 255167 10 79 0 0% 0 0 0
erubi_rails (click) 1905041 1435275 262 1872 18 0% 0 0 3
fannkuchredux (click) 166545 128010 8 189 0 0% 0 0 0
lee (click) 373009 294117 45 587 69 11% 0 0 12
nbody (click) 161553 124184 10 159 0 0% 0 0 0
optcarrot (click) 488785 429814 198 3576 20 0% 0 0 0
rubykon (click) 292945 237017 140 1530 1 0% 0 0 0
30k_ifelse (click) 5533201 4329705 9263 57805 0 0% 0 0 0
30k_methods (click) 2156497 1645769 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150673 115587 8 50 0 0% 0 0 0
fib (click) 149649 115363 8 39 0 0% 0 0 0
getivar (click) 151057 117731 8 66 0 0% 0 0 0
keyword_args (click) 151569 116228 9 52 0 0% 0 0 0
respond_to (click) 152913 117066 8 65 0 0% 0 0 0
setivar (click) 151057 116255 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.