YJIT Benchmarks

Details for Benchmarks at 2022-08-04 05:21:17

Overall YJIT is 35.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.1% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 151 75 151 20 151
mail 5 127 75 127 20 127
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 62 75 62 20 62
erubi_rails 5 1024 75 1024 20 1024
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 36 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 429 75 429 20 429
fib 5 314 75 314 20 314
getivar 5 611 75 611 20 611
keyword_args 5 379 75 379 20 379
respond_to 5 99 75 99 20 99
setivar 5 955 75 955 20 955
str_concat 5 450 75 450 20 450

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) 1038043 780802 131 1294 0 0% 0 0 0
hexapdf (click) 1150619 925000 682 8016 9 0% 0 0 0
liquid-render (click) 519003 404411 150 1678 2 0% 0 0 0
mail (click) 943195 679127 374 5765 17 0% 0 0 0
psych-load (click) 347419 263248 68 482 1 0% 0 0 0
railsbench (click) 2657819 1968987 1436 10045 16 0% 0 0 0
binarytrees (click) 171931 128248 13 58 0 0% 0 0 0
chunky_png (click) 386779 289012 88 1006 0 0% 0 0 0
erubi (click) 322907 246264 10 79 0 0% 0 0 0
erubi_rails (click) 1962907 1430123 300 2025 4 0% 0 0 0
fannkuchredux (click) 185755 138378 10 188 0 0% 0 0 0
lee (click) 385243 290809 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) 321243 257011 144 1575 1 0% 0 0 0
30k_ifelse (click) 5560987 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2175707 1656882 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) 172571 128475 10 64 0 0% 0 0 0
setivar (click) 170587 127536 10 38 0 0% 0 0 0
str_concat (click) 170587 127943 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.