YJIT Benchmarks

Details for Benchmarks at 2022-09-21 08:06:32

Overall YJIT is 36.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.7% 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 5 171 75 171 20 171
mail 5 130 75 130 20 130
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 84 75 84 20 84
chunky_png 5 30 75 30 20 30
erubi 5 67 75 67 20 67
erubi_rails 5 1056 75 1056 20 1056
fannkuchredux 5 15 55 15 20 15
lee 5 21 75 21 20 21
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 67 55 20 55
30k_methods 5 25 22 25 20 25
cfunc_itself 5 433 75 433 20 433
fib 5 313 75 313 20 313
getivar 5 467 75 467 20 467
keyword_args 5 366 75 366 20 366
respond_to 5 656 75 656 20 656
setivar 5 491 75 491 20 491
str_concat 5 491 75 491 20 491

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) 1069623 779168 131 1281 0 0% 0 0 0
hexapdf (click) 1177783 918995 683 8051 10 0% 0 0 0
liquid-render (click) 521271 395285 150 1644 2 0% 0 0 0
mail (click) 932215 650030 374 5408 17 0% 0 0 0
psych-load (click) 356215 261195 68 480 1 0% 0 0 0
railsbench (click) 2732535 1963722 1436 10068 16 0% 0 0 0
binarytrees (click) 177463 128043 13 64 0 0% 0 0 0
chunky_png (click) 398711 288490 88 1003 0 0% 0 0 0
erubi (click) 341111 250594 10 79 0 0% 0 0 0
erubi_rails (click) 2021047 1427752 300 2024 4 0% 0 0 0
fannkuchredux (click) 189815 136544 10 196 0 0% 0 0 0
lee (click) 396407 288628 58 634 0 0% 0 0 0
nbody (click) 186935 135971 12 171 0 0% 0 0 0
optcarrot (click) 531831 441312 207 3592 20 0% 0 0 0
rubykon (click) 329975 255819 144 1583 1 0% 0 0 0
30k_ifelse (click) 5664247 4347294 9265 57804 0 0% 0 0 0
30k_methods (click) 2208503 1655756 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174711 125952 10 49 0 0% 0 0 0
fib (click) 172663 125157 10 38 0 0% 0 0 0
getivar (click) 174519 127294 10 65 0 0% 0 0 0
keyword_args (click) 175031 126190 11 51 0 0% 0 0 0
respond_to (click) 174583 126763 10 64 0 0% 0 0 0
setivar (click) 174391 126064 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.