YJIT Benchmarks

Details for Benchmarks at 2022-08-26 20:14:10

Overall YJIT is 33.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.8% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 161 75 161 20 161
mail 5 126 75 126 20 126
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1017 75 1017 20 1017
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 63 56 20 56
30k_methods 5 23 22 23 20 23
cfunc_itself 5 423 75 423 20 423
fib 5 315 75 315 20 315
getivar 5 615 75 615 20 615
keyword_args 5 367 75 367 20 367
respond_to 5 105 75 105 20 105
setivar 5 980 75 980 20 980
str_concat 5 432 75 432 20 432

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) 1036123 779911 131 1272 0 0% 0 0 0
hexapdf (click) 1149403 923020 682 8008 9 0% 0 0 0
liquid-render (click) 520859 405152 150 1691 2 0% 0 0 0
mail (click) 909595 656934 374 5416 17 0% 0 0 0
psych-load (click) 347419 263551 68 482 1 0% 0 0 0
railsbench (click) 2660187 1969444 1436 10053 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 389531 291251 88 1028 0 0% 0 0 0
erubi (click) 331355 252457 10 79 0 0% 0 0 0
erubi_rails (click) 1962075 1428933 300 2030 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 385115 290541 58 632 0 0% 0 0 0
nbody (click) 181979 137324 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320219 256222 144 1572 1 0% 0 0 0
30k_ifelse (click) 5560155 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2175195 1656631 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169883 126902 10 49 0 0% 0 0 0
fib (click) 168091 126132 10 38 0 0% 0 0 0
getivar (click) 169819 128219 10 65 0 0% 0 0 0
keyword_args (click) 170459 127165 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 169755 127039 10 38 0 0% 0 0 0
str_concat (click) 169627 127321 12 62 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.