YJIT Benchmarks

Details for Benchmarks at 2022-08-09 05:17:10

Overall YJIT is 36.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.0% 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 5 187 75 187 20 187
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 129 75 129 20 129
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 31 75 31 20 31
erubi 5 61 75 61 20 61
erubi_rails 5 1031 75 1031 20 1031
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 431 75 431 20 431
fib 5 315 75 315 20 315
getivar 5 611 75 611 20 611
keyword_args 5 379 75 379 20 379
respond_to 5 106 75 106 20 106
setivar 5 959 75 959 20 959
str_concat 5 466 75 466 20 466

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) 1036891 780219 131 1275 0 0% 0 0 0
hexapdf (click) 1150299 923986 682 8007 9 0% 0 0 0
liquid-render (click) 523291 406713 150 1706 2 0% 0 0 0
mail (click) 908443 655781 374 5406 17 0% 0 0 0
psych-load (click) 347355 263298 68 482 1 0% 0 0 0
railsbench (click) 2650971 1963521 1436 9982 16 0% 0 0 0
binarytrees (click) 171419 127952 13 58 0 0% 0 0 0
chunky_png (click) 389595 290917 88 1037 0 0% 0 0 0
erubi (click) 322843 245914 10 79 0 0% 0 0 0
erubi_rails (click) 1962651 1429769 300 2031 4 0% 0 0 0
fannkuchredux (click) 185691 138378 10 188 0 0% 0 0 0
lee (click) 386075 291615 58 632 0 0% 0 0 0
nbody (click) 182491 137443 12 171 0 0% 0 0 0
optcarrot (click) 514395 442939 207 3588 20 0% 0 0 0
rubykon (click) 320411 256543 144 1571 1 0% 0 0 0
30k_ifelse (click) 5560475 4348420 9265 57804 0 0% 0 0 0
30k_methods (click) 2176603 1657507 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127021 10 49 0 0% 0 0 0
fib (click) 169371 126958 10 38 0 0% 0 0 0
getivar (click) 170587 128716 10 65 0 0% 0 0 0
keyword_args (click) 170779 127366 11 51 0 0% 0 0 0
respond_to (click) 172059 128179 10 64 0 0% 0 0 0
setivar (click) 170523 127536 10 38 0 0% 0 0 0
str_concat (click) 170523 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.