YJIT Benchmarks

Details for Benchmarks at 2022-10-31 20:10:45

Overall YJIT is 31.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.2% 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 YJIT warmups YJIT iters
activerecord 5 204 5 204
hexapdf 5 15 5 15
liquid-render 5 173 5 173
mail 5 129 5 129
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 255 5 255
binarytrees 5 87 5 87
chunky_png 5 32 5 32
erubi 5 66 5 66
erubi_rails 5 1062 5 1062
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 19 5 19
nbody 5 245 5 245
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 494 5 494
fib 5 325 5 325
getivar 5 427 5 427
keyword_args 5 383 5 383
respond_to 5 706 5 706
setivar 5 413 5 413
str_concat 5 432 5 432

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) 2316591 2313752 23 367 6 1% 0 0 0
hexapdf (click) 1777033 1776691 818 10066 189 1% 0 0 0
liquid-render (click) 590686 590228 154 1769 34 1% 0 0 0
mail (click) 1345929 1344837 371 5133 176 3% 0 0 0
psych-load (click) 805481 804418 68 573 19 3% 0 0 0
railsbench (click) 5536692 5535702 1777 13681 483 3% 0 0 0
ruby-lsp (click) 5611713 5610102 6423 41614 1520 3% 12754 0 0
binarytrees (click) 128238 126296 14 79 4 5% 0 0 0
chunky_png (click) 822199 820931 87 1063 31 2% 0 0 0
erubi (click) 750084 748662 11 87 4 4% 0 0 0
erubi_rails (click) 4629516 4628228 327 2617 111 4% 0 0 0
etanni (click) 129355 126501 11 47 4 8% 0 0 0
fannkuchredux (click) 140491 139998 11 209 4 1% 0 0 0
lee (click) 831768 830168 77 758 25 3% 0 0 0
nbody (click) 136026 134511 13 188 6 3% 0 0 0
optcarrot (click) 562979 561263 201 4014 93 2% 0 0 0
rubykon (click) 278146 275822 143 1581 32 2% 0 0 0
30k_ifelse (click) 5420144 5419577 9266 57136 4 0% 0 0 0
30k_methods (click) 2088352 2087875 5785 19365 4 0% 0 0 0
cfunc_itself (click) 126387 125081 11 62 4 6% 0 0 0
fib (click) 124929 124149 11 51 4 7% 0 0 0
getivar (click) 127011 125607 11 78 4 5% 0 0 0
keyword_args (click) 120077 117946 12 64 4 6% 0 0 0
respond_to (click) 126916 125448 11 78 5 6% 0 0 0
setivar (click) 120073 117975 11 51 4 7% 0 0 0
str_concat (click) 126288 124875 13 77 6 7% 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.