YJIT Benchmarks

Details for Benchmarks at 2022-01-24 07:17:50

Overall YJIT is 32.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.8% 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 5 187 20 187 75 187 20 187
hexapdf 5 15 20 15 20 15
liquid-render 5 181 20 181 75 181 20 181
mail 5 137 20 137 75 137 20 137
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 85 20 85 75 85 20 85
erubi 5 53 20 53 75 53 20 53
erubi_rails 5 978 20 978 75 978 20 978
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 26 20 26 75 26 20 26
nbody 5 343 20 343 75 343 20 343
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 44 15 20 15
30k_ifelse 5 62 20 62 75 62 20 62
30k_methods 5 27 20 27 44 27 20 27
cfunc_itself 5 525 20 525 75 525 20 525
fib 5 383 20 383 75 383 20 383
getivar 5 956 20 956 75 956 20 956
keyword_args 5 456 20 456 75 456 20 456
respond_to 5 127 20 127 75 127 20 127
setivar 5 2179 20 2179 75 2179 20 2179

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) 974481 747446 185 1195 0 0% 0 0 0
hexapdf (click) 1101649 903025 599 8163 613 7% 0 0 321
liquid-render (click) 477585 380420 143 1531 95 6% 0 0 1
mail (click) 865681 649224 324 5323 124 2% 0 0 39
psych-load (click) 307281 243711 58 428 1 0% 0 0 0
railsbench (click) 2514641 1916597 1297 9321 268 2% 0 0 26
binarytrees (click) 119441 91722 10 54 0 0% 0 0 0
erubi (click) 301777 240452 9 73 0 0% 0 0 0
erubi_rails (click) 1899537 1430250 261 1946 18 0% 0 0 3
fannkuchredux (click) 132689 102091 7 184 0 0% 0 0 0
lee (click) 344145 271436 45 586 70 11% 0 0 12
nbody (click) 128721 98923 9 154 0 0% 0 0 0
optcarrot (click) 455953 404553 197 3571 20 0% 0 0 0
rubykon (click) 260497 211901 139 1528 1 0% 0 0 0
30k_ifelse (click) 5508497 4312046 9262 57800 0 0% 0 0 0
30k_methods (click) 2123153 1620179 5781 19357 0 0% 0 0 0
cfunc_itself (click) 117393 90022 7 45 0 0% 0 0 0
fib (click) 115985 89630 7 34 0 0% 0 0 0
getivar (click) 118225 92470 7 61 0 0% 0 0 0
keyword_args (click) 118289 90663 8 47 0 0% 0 0 0
respond_to (click) 120081 91805 7 60 0 0% 0 0 0
setivar (click) 118225 90994 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.