YJIT Benchmarks

Details for Benchmarks at 2022-08-14 05:13:56

Overall YJIT is 31.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.9% 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.

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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 5 159 75 159 20 159
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 30 75 30 20 30
erubi 5 60 75 60 20 60
erubi_rails 5 1035 75 1035 20 1035
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 259 75 259 20 259
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 5 315 75 315 20 315
getivar 5 620 75 620 20 620
keyword_args 5 369 75 369 20 369
respond_to 5 109 75 109 20 109
setivar 5 988 75 988 20 988
str_concat 5 445 75 445 20 445

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) 1036059 779334 131 1274 0 0% 0 0 0
hexapdf (click) 1149147 923042 682 8005 9 0% 0 0 0
liquid-render (click) 515547 401345 150 1682 2 0% 0 0 0
mail (click) 906779 654261 375 5413 17 0% 0 0 0
psych-load (click) 347035 263105 68 480 1 0% 0 0 0
railsbench (click) 2659355 1968716 1436 10053 16 0% 0 0 0
binarytrees (click) 171867 128248 13 58 0 0% 0 0 0
chunky_png (click) 387355 289626 88 1011 0 0% 0 0 0
erubi (click) 322779 245914 10 79 0 0% 0 0 0
erubi_rails (click) 1962971 1429912 300 2044 4 0% 0 0 0
fannkuchredux (click) 185819 138016 10 196 0 0% 0 0 0
lee (click) 384987 290734 58 632 0 0% 0 0 0
nbody (click) 182491 137443 12 171 0 0% 0 0 0
optcarrot (click) 513883 442610 207 3588 20 0% 0 0 0
rubykon (click) 321051 256898 144 1574 1 0% 0 0 0
30k_ifelse (click) 5560923 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2176091 1657178 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127021 10 49 0 0% 0 0 0
fib (click) 168859 126629 10 38 0 0% 0 0 0
getivar (click) 170587 128716 10 65 0 0% 0 0 0
keyword_args (click) 171227 127662 11 51 0 0% 0 0 0
respond_to (click) 172507 128475 10 64 0 0% 0 0 0
setivar (click) 170523 127536 10 38 0 0% 0 0 0
str_concat (click) 170523 127868 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.