YJIT Benchmarks

Details for Benchmarks at 2022-09-15 20:11:37

Overall YJIT is 36.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.9% 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.

Want Raw Graphs and CSV?

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 5 178 75 178 20 178
mail 5 128 75 128 20 128
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 30 75 30 20 30
erubi 5 67 75 67 20 67
erubi_rails 5 1040 75 1040 20 1040
fannkuchredux 5 15 55 15 20 15
lee 5 21 75 21 20 21
nbody 5 266 75 266 20 266
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 71 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 427 75 427 20 427
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 371 75 371 20 371
respond_to 5 667 75 667 20 667
setivar 5 435 75 435 20 435
str_concat 5 425 75 425 20 425

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) 1066679 777211 131 1285 0 0% 0 0 0
hexapdf (click) 1175223 916800 683 8045 10 0% 0 0 0
liquid-render (click) 524087 396957 150 1669 2 0% 0 0 0
mail (click) 960311 668482 374 5728 17 0% 0 0 0
psych-load (click) 353783 259181 68 472 1 0% 0 0 0
railsbench (click) 2721911 1957745 1436 10018 16 0% 0 0 0
binarytrees (click) 175863 126906 13 60 0 0% 0 0 0
chunky_png (click) 397367 287598 88 1004 0 0% 0 0 0
erubi (click) 341175 250589 10 79 0 0% 0 0 0
erubi_rails (click) 2012535 1420638 300 2033 4 0% 0 0 0
fannkuchredux (click) 189431 136049 10 196 0 0% 0 0 0
lee (click) 394615 286942 58 634 0 0% 0 0 0
nbody (click) 186999 136021 12 171 0 0% 0 0 0
optcarrot (click) 531831 441312 207 3592 20 0% 0 0 0
rubykon (click) 328951 254847 144 1572 1 0% 0 0 0
30k_ifelse (click) 5664247 4347294 9265 57804 0 0% 0 0 0
30k_methods (click) 2208119 1655496 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174327 125549 10 49 0 0% 0 0 0
fib (click) 172663 125157 10 38 0 0% 0 0 0
getivar (click) 174071 126984 10 65 0 0% 0 0 0
keyword_args (click) 175095 126240 11 51 0 0% 0 0 0
respond_to (click) 174647 126813 10 64 0 0% 0 0 0
setivar (click) 174455 126114 10 38 0 0% 0 0 0
str_concat (click) 174391 126446 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.