YJIT Benchmarks

Details for Benchmarks at 2022-03-07 19:15:06

Overall YJIT is 33.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.9% 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 5 154 75 154 20 154
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 68 75 68 20 68
chunky_png 15 15 15 15 15 15
discourse 5 33 75 33 20 33
erubi 5 47 75 47 20 47
erubi_rails 5 962 75 962 20 962
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 284 75 284 20 284
optcarrot 5 15 75 15 20 15
rubykon 5 15 38 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 320 75 320 20 320
getivar 5 795 75 795 20 795
keyword_args 5 377 75 377 20 377
respond_to 5 100 75 100 20 100
setivar 5 1908 75 1908 20 1908

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) 991377 760270 185 1205 0 0% 0 0 0
hexapdf (click) 1114129 912589 599 8172 615 7% 0 0 320
liquid-render (click) 490513 388982 143 1530 96 6% 0 0 1
mail (click) 897489 671788 324 5529 125 2% 0 0 39
psych-load (click) 328657 259382 59 434 1 0% 0 0 0
railsbench (click) 2537489 1934185 1297 9382 268 2% 0 0 26
binarytrees (click) 150929 115802 11 59 0 0% 0 0 0
chunky_png (click) 364049 284024 85 858 0 0% 0 0 0
discourse (click) 22393233 11275554 3133 280649 257185 91% 2 0 133
erubi (click) 319697 252825 10 79 0 0% 0 0 0
erubi_rails (click) 1902417 1431805 262 1875 18 0% 0 0 3
fannkuchredux (click) 164561 126387 8 189 0 0% 0 0 0
lee (click) 371793 292987 45 587 69 11% 0 0 12
nbody (click) 160209 123003 10 159 0 0% 0 0 0
optcarrot (click) 487441 428633 198 3576 20 0% 0 0 0
rubykon (click) 292433 236423 140 1538 1 0% 0 0 0
30k_ifelse (click) 5539857 4336013 9263 57805 0 0% 0 0 0
30k_methods (click) 2154705 1643901 5782 19362 0 0% 0 0 0
cfunc_itself (click) 148945 113744 8 50 0 0% 0 0 0
fib (click) 147857 113926 8 39 0 0% 0 0 0
getivar (click) 149585 116437 8 66 0 0% 0 0 0
keyword_args (click) 150289 115072 9 52 0 0% 0 0 0
respond_to (click) 151441 115772 8 65 0 0% 0 0 0
setivar (click) 150097 115290 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.