YJIT Benchmarks

Details for Benchmarks at 2022-01-10 07:10:01

Overall YJIT is 28.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 24.1% 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 5 188 20 188 75 188 20 188
hexapdf 5 15 20 15 20 15
liquid-render 5 158 20 158 75 158 20 158
mail 5 140 20 140 75 140 20 140
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 55 20 55 75 55 20 55
erubi_rails 5 997 20 997 75 997 20 997
fannkuchredux 5 15 20 15 53 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 43 15 20 15
30k_ifelse 5 62 20 62 75 62 20 62
30k_methods 5 26 20 26 44 26 20 26
cfunc_itself 5 517 20 517 75 517 20 517
fib 5 384 20 384 75 384 20 384
getivar 5 564 20 564 75 564 20 564
keyword_args 5 437 20 437 75 437 20 437
respond_to 5 123 20 123 75 123 20 123
setivar 5 457 20 457 75 457 20 457

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) 968081 740846 185 1198 0 0% 0 0 0
hexapdf (click) 1111313 912076 599 8098 615 7% 0 0 321
liquid-render (click) 467921 371201 144 1433 95 6% 0 0 1
mail (click) 840465 626663 326 5231 124 2% 0 0 39
psych-load (click) 302865 237215 59 433 1 0% 0 0 0
railsbench (click) 2512977 1911379 1296 9335 266 2% 0 0 26
binarytrees (click) 113745 87077 10 54 0 0% 0 0 0
erubi (click) 291985 231295 9 73 0 0% 0 0 0
erubi_rails (click) 1890769 1422656 261 1942 16 0% 0 0 3
fannkuchredux (click) 127633 97888 7 184 0 0% 0 0 0
lee (click) 332305 262023 45 579 72 12% 0 0 12
nbody (click) 123025 94278 9 154 0 0% 0 0 0
optcarrot (click) 450257 399908 197 3571 20 0% 0 0 0
rubykon (click) 256465 208529 139 1548 1 0% 0 0 0
30k_ifelse (click) 5502801 4307401 9262 57800 0 0% 0 0 0
30k_methods (click) 2117969 1615863 5781 19357 0 0% 0 0 0
cfunc_itself (click) 112209 85706 7 45 0 0% 0 0 0
fib (click) 110801 85314 7 34 0 0% 0 0 0
getivar (click) 113041 88154 7 61 0 0% 0 0 0
keyword_args (click) 113233 86460 8 47 0 0% 0 0 0
respond_to (click) 114513 87273 7 60 0 0% 0 0 0
setivar (click) 112529 86349 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.