YJIT Benchmarks

Details for Benchmarks at 2022-06-22 10:43:52

Overall YJIT is 33.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.3% 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 5 189 75 189 20 189
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
erubi 5 50 75 50 20 50
erubi_rails 5 1000 75 1000 20 1000
fannkuchredux 5 15 52 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 440 75 440 20 440
fib 5 315 75 315 20 315
getivar 5 755 75 755 20 755
keyword_args 5 377 75 377 20 377
respond_to 5 107 75 107 20 107
setivar 5 1872 75 1872 20 1872
str_concat 5 196 75 196 20 196

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) 1012443 753310 131 1250 0 0% 0 0 0
hexapdf (click) 1117851 877510 682 7749 10 0% 0 0 0
liquid-render (click) 504155 386752 150 1597 2 0% 0 0 0
mail (click) 914011 660413 374 5550 15 0% 0 0 0
psych-load (click) 339931 255621 68 457 1 0% 0 0 0
railsbench (click) 2620315 1916354 1436 9845 16 0% 0 0 0
binarytrees (click) 173211 129800 13 58 0 0% 0 0 0
chunky_png (click) 379163 283360 88 996 0 0% 0 0 0
erubi (click) 317083 240990 10 79 0 0% 0 0 0
erubi_rails (click) 1927067 1389059 300 1956 4 0% 0 0 0
fannkuchredux (click) 186715 140202 10 188 0 0% 0 0 0
lee (click) 377755 283368 58 622 0 0% 0 0 0
nbody (click) 182683 137001 12 158 0 0% 0 0 0
optcarrot (click) 513883 442250 207 3571 20 0% 0 0 0
rubykon (click) 317275 250372 144 1531 1 0% 0 0 0
30k_ifelse (click) 5561755 4349828 9265 57804 0 0% 0 0 0
30k_methods (click) 2176923 1658290 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171227 128133 10 49 0 0% 0 0 0
fib (click) 170203 128037 10 38 0 0% 0 0 0
getivar (click) 171995 130548 10 65 0 0% 0 0 0
keyword_args (click) 172059 128774 11 51 0 0% 0 0 0
respond_to (click) 173339 129587 10 64 0 0% 0 0 0
setivar (click) 171931 129072 10 38 0 0% 0 0 0
str_concat (click) 171931 129392 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.