YJIT Benchmarks

Details for Benchmarks at 2022-08-07 05:13:37

Overall YJIT is 36.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.5% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 128 75 128 20 128
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
erubi 5 62 75 62 20 62
erubi_rails 5 1017 75 1017 20 1017
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 35 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 30 22 20 22
cfunc_itself 5 436 75 436 20 436
fib 5 314 75 314 20 314
getivar 5 611 75 611 20 611
keyword_args 5 366 75 366 20 366
respond_to 5 105 75 105 20 105
setivar 5 956 75 956 20 956
str_concat 5 463 75 463 20 463

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) 1038171 780969 131 1294 0 0% 0 0 0
hexapdf (click) 1149723 923852 682 8013 10 0% 0 0 0
liquid-render (click) 518683 402805 150 1671 2 0% 0 0 0
mail (click) 905499 652740 374 5366 17 0% 0 0 0
psych-load (click) 347419 263298 68 482 1 0% 0 0 0
railsbench (click) 2657243 1967947 1436 10030 16 0% 0 0 0
binarytrees (click) 171931 128248 13 58 0 0% 0 0 0
chunky_png (click) 386331 288891 88 998 0 0% 0 0 0
erubi (click) 322907 245914 10 79 0 0% 0 0 0
erubi_rails (click) 1958811 1427387 300 2000 4 0% 0 0 0
fannkuchredux (click) 185755 138378 10 188 0 0% 0 0 0
lee (click) 386139 291615 58 632 0 0% 0 0 0
nbody (click) 182555 137443 12 171 0 0% 0 0 0
optcarrot (click) 513947 442610 207 3588 20 0% 0 0 0
rubykon (click) 320475 256184 144 1564 2 0% 0 0 0
30k_ifelse (click) 5560987 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2176155 1657178 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170459 127021 10 49 0 0% 0 0 0
fib (click) 168923 126629 10 38 0 0% 0 0 0
getivar (click) 170651 128716 10 65 0 0% 0 0 0
keyword_args (click) 171291 127662 11 51 0 0% 0 0 0
respond_to (click) 172123 128179 10 64 0 0% 0 0 0
setivar (click) 170587 127536 10 38 0 0% 0 0 0
str_concat (click) 170587 127868 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.