YJIT Benchmarks

Details for Benchmarks at 2022-04-20 07:18:58

Overall YJIT is 32.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.0% 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 5 155 75 155 20 155
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 984 75 984 20 984
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 453 75 453 20 453
fib 5 320 75 320 20 320
getivar 5 777 75 777 20 777
keyword_args 5 377 75 377 20 377
respond_to 5 109 75 109 20 109
setivar 5 1815 75 1815 20 1815

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) 994513 815673 185 1185 0 0% 0 0 0
hexapdf (click) 1097297 919928 599 7871 427 5% 0 0 321
liquid-render (click) 497553 419010 143 1530 92 6% 0 0 5
mail (click) 846161 657784 324 4979 96 1% 0 0 111
psych-load (click) 342417 288084 59 434 1 0% 0 0 0
railsbench (click) 2598289 2104748 1297 9374 224 2% 0 0 26
binarytrees (click) 168657 136938 11 59 0 0% 0 0 0
chunky_png (click) 376529 310777 85 861 0 0% 0 0 0
discourse (click) 6295185 5640031 3178 27457 3226 11% 2 0 140
erubi (click) 329617 277216 10 79 0 0% 0 0 0
erubi_rails (click) 1956753 1596300 262 1888 12 0% 0 0 3
fannkuchredux (click) 184913 151277 8 189 0 0% 0 0 0
lee (click) 379089 317048 45 582 68 11% 0 0 13
nbody (click) 178961 146027 10 158 0 0% 0 0 0
optcarrot (click) 504401 449395 198 3576 20 0% 0 0 0
rubykon (click) 311953 260580 140 1525 1 0% 0 0 0
30k_ifelse (click) 5557713 4357262 9263 57805 0 0% 0 0 0
30k_methods (click) 2174609 1668991 5782 19362 0 0% 0 0 0
cfunc_itself (click) 167121 135567 8 50 0 0% 0 0 0
fib (click) 164945 134801 8 39 0 0% 0 0 0
getivar (click) 166161 136983 8 66 0 0% 0 0 0
keyword_args (click) 169745 139475 9 52 0 0% 0 0 0
respond_to (click) 171793 140662 8 65 0 0% 0 0 0
setivar (click) 168657 139148 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.