YJIT Benchmarks

Details for Benchmarks at 2022-01-18 07:12:30

Overall YJIT is 31.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.8% 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 5 196 20 196 75 196 20 196
hexapdf 5 15 20 15 20 15
liquid-render 5 180 20 180 75 180 20 180
mail 5 143 20 143 75 143 20 143
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 87 20 87 75 87 20 87
erubi 5 56 20 56 75 56 20 56
erubi_rails 5 1019 20 1019 75 1019 20 1019
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 26 20 26 75 26 20 26
nbody 5 344 20 344 75 344 20 344
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 43 15 20 15
30k_ifelse 5 65 20 65 75 65 20 65
30k_methods 5 27 20 27 44 27 20 27
cfunc_itself 5 506 20 506 75 506 20 506
fib 5 384 20 384 75 384 20 384
getivar 5 963 20 963 75 963 20 963
keyword_args 5 436 20 436 75 436 20 436
respond_to 5 128 20 128 75 128 20 128
setivar 5 2209 20 2209 75 2209 20 2209

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) 966033 740506 185 1197 0 0% 0 0 0
hexapdf (click) 1095057 897193 599 8168 614 7% 0 0 321
liquid-render (click) 474449 377122 143 1535 95 6% 0 0 1
mail (click) 860817 644227 324 5346 124 2% 0 0 39
psych-load (click) 296465 234014 58 445 1 0% 0 0 0
railsbench (click) 2501649 1906110 1297 9258 268 2% 0 0 26
binarytrees (click) 112465 86374 10 54 0 0% 0 0 0
erubi (click) 294673 234301 9 73 0 0% 0 0 0
erubi_rails (click) 1888849 1422183 261 1907 18 0% 0 0 3
fannkuchredux (click) 126225 97072 7 184 0 0% 0 0 0
lee (click) 336977 265264 45 586 72 12% 0 0 12
nbody (click) 121745 93575 9 154 0 0% 0 0 0
optcarrot (click) 448977 399205 197 3571 20 0% 0 0 0
rubykon (click) 253585 206656 139 1529 1 0% 0 0 0
30k_ifelse (click) 5501521 4306698 9262 57800 0 0% 0 0 0
30k_methods (click) 2116689 1615160 5781 19357 0 0% 0 0 0
cfunc_itself (click) 110929 85003 7 45 0 0% 0 0 0
fib (click) 109521 84611 7 34 0 0% 0 0 0
getivar (click) 111249 87122 7 61 0 0% 0 0 0
keyword_args (click) 111825 85644 8 47 0 0% 0 0 0
respond_to (click) 113105 86457 7 60 0 0% 0 0 0
setivar (click) 111249 85646 7 34 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.