YJIT Benchmarks

Details for Benchmarks at 2022-08-02 20:16:57

Overall YJIT is 34.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.6% 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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 127 75 127 20 127
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 31 75 31 20 31
erubi 5 62 75 62 20 62
erubi_rails 5 1047 75 1047 20 1047
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 54 75 54 20 54
30k_methods 5 23 30 23 20 23
cfunc_itself 5 442 75 442 20 442
fib 5 315 75 315 20 315
getivar 5 612 75 612 20 612
keyword_args 5 370 75 370 20 370
respond_to 5 100 75 100 20 100
setivar 5 957 75 957 20 957
str_concat 5 453 75 453 20 453

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) 1039323 782130 131 1295 0 0% 0 0 0
hexapdf (click) 1151835 926061 683 8022 10 0% 0 0 0
liquid-render (click) 519387 403926 150 1670 2 0% 0 0 0
mail (click) 928923 669347 375 5607 17 0% 0 0 0
psych-load (click) 348059 263818 68 482 1 0% 0 0 0
railsbench (click) 2653851 1965192 1436 9991 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 387163 289944 88 998 0 0% 0 0 0
erubi (click) 323547 246784 10 79 0 0% 0 0 0
erubi_rails (click) 1961051 1429000 300 2006 4 0% 0 0 0
fannkuchredux (click) 186011 138504 10 188 0 0% 0 0 0
lee (click) 386779 292260 58 632 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 513755 442440 207 3588 20 0% 0 0 0
rubykon (click) 321179 256715 144 1570 1 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657304 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127147 10 49 0 0% 0 0 0
fib (click) 169179 126755 10 38 0 0% 0 0 0
getivar (click) 170907 128842 10 65 0 0% 0 0 0
keyword_args (click) 171099 127492 11 51 0 0% 0 0 0
respond_to (click) 172827 128601 10 64 0 0% 0 0 0
setivar (click) 170395 127366 10 38 0 0% 0 0 0
str_concat (click) 170523 127773 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.