YJIT Benchmarks

Details for Benchmarks at 2022-11-27 20:10:04

Overall YJIT is 33.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.6% 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 5 211 5 211
hexapdf 5 15 5 15
liquid-render 5 153 5 153
mail 5 123 5 123
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 279 5 279
binarytrees 5 84 5 84
chunky_png 5 31 5 31
erubi 5 68 5 68
erubi_rails 5 1130 5 1130
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 254 5 254
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 51 5 51
30k_methods 5 20 5 20
cfunc_itself 5 481 5 481
fib 5 328 5 328
getivar 5 425 5 425
keyword_args 5 373 5 373
respond_to 5 692 5 692
setivar 5 413 5 413
str_concat 5 429 5 429

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) 2273150 2271551 25 380 6 1% 0 0 0
hexapdf (click) 1714755 1713751 819 9840 218 2% 0 0 0
liquid-render (click) 581258 581206 156 1800 34 1% 0 0 0
mail (click) 1311396 1311063 373 5067 176 3% 0 0 0
psych-load (click) 793842 791631 70 607 19 3% 0 0 0
railsbench (click) 5559375 5559062 1779 13721 484 3% 0 0 0
ruby-lsp (click) 5356488 5355721 6428 40271 1522 3% 14054 0 0
binarytrees (click) 127168 125863 16 139 4 2% 0 0 0
chunky_png (click) 813853 812752 89 1162 31 2% 0 0 0
erubi (click) 738807 738380 13 147 4 2% 0 0 0
erubi_rails (click) 4694846 4693871 329 2680 111 4% 0 0 0
etanni (click) 125757 124706 13 107 4 3% 0 0 0
fannkuchredux (click) 146204 144254 13 269 4 1% 0 0 0
lee (click) 816053 814446 79 804 25 3% 0 0 0
nbody (click) 139613 139348 15 235 6 2% 0 0 0
optcarrot (click) 549197 548791 203 4071 93 2% 0 0 0
rubykon (click) 268974 267044 146 1604 32 1% 0 0 0
30k_ifelse (click) 5396198 5395669 9268 57196 4 0% 0 0 0
30k_methods (click) 2086789 2084522 5787 19425 4 0% 0 0 0
cfunc_itself (click) 132447 132046 13 122 4 3% 0 0 0
fib (click) 130680 128334 13 111 4 3% 0 0 0
getivar (click) 132501 132071 13 138 4 2% 0 0 0
keyword_args (click) 125560 124538 14 124 4 3% 0 0 0
respond_to (click) 125538 124538 13 138 5 3% 0 0 0
setivar (click) 125560 124538 13 111 4 3% 0 0 0
str_concat (click) 126435 125313 15 137 6 4% 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.