YJIT Benchmarks

Details for Benchmarks at 2022-09-02 20:12:05

Overall YJIT is 32.7% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 125 75 125 20 125
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 60 75 60 20 60
erubi_rails 5 1019 75 1019 20 1019
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 46 68 46 20 46
30k_methods 5 24 23 24 20 24
cfunc_itself 5 425 75 425 20 425
fib 5 301 75 301 20 301
getivar 5 616 75 616 20 616
keyword_args 5 359 75 359 20 359
respond_to 5 104 75 104 20 104
setivar 5 984 75 984 20 984
str_concat 5 400 75 400 20 400

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) 1077879 781938 131 1281 0 0% 0 0 0
hexapdf (click) 1192631 922629 682 8016 10 0% 0 0 0
liquid-render (click) 536439 402853 150 1679 2 0% 0 0 0
mail (click) 961783 669093 374 5617 17 0% 0 0 0
psych-load (click) 360375 263223 68 482 1 0% 0 0 0
railsbench (click) 2764087 1970702 1436 10033 16 0% 0 0 0
binarytrees (click) 177143 127751 13 58 0 0% 0 0 0
chunky_png (click) 399351 288507 88 978 0 0% 0 0 0
erubi (click) 344375 252222 10 79 0 0% 0 0 0
erubi_rails (click) 2042615 1430473 300 1992 4 0% 0 0 0
fannkuchredux (click) 191287 137519 10 196 0 0% 0 0 0
lee (click) 399991 290563 58 634 0 0% 0 0 0
nbody (click) 186935 135468 12 171 0 0% 0 0 0
optcarrot (click) 536119 442347 207 3588 20 0% 0 0 0
rubykon (click) 332343 256661 144 1576 2 0% 0 0 0
30k_ifelse (click) 5705271 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2209847 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175735 126524 10 49 0 0% 0 0 0
fib (click) 174071 126132 10 38 0 0% 0 0 0
getivar (click) 175863 128219 10 65 0 0% 0 0 0
keyword_args (click) 176375 126880 11 51 0 0% 0 0 0
respond_to (click) 178039 127978 10 64 0 0% 0 0 0
setivar (click) 175799 127039 10 38 0 0% 0 0 0
str_concat (click) 175735 127371 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.