YJIT Benchmarks

Details for Benchmarks at 2022-07-23 20:14:04

Overall YJIT is 34.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.0% 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 5 188 75 188 20 188
hexapdf 5 15 20 15
liquid-render 5 160 75 160 20 160
mail 5 126 75 126 20 126
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 63 75 63 20 63
erubi_rails 5 1007 75 1007 20 1007
fannkuchredux 5 15 74 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 35 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 28 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 315 75 315 20 315
getivar 5 615 75 615 20 615
keyword_args 5 369 75 369 20 369
respond_to 5 104 75 104 20 104
setivar 5 957 75 957 20 957
str_concat 5 488 75 488 20 488

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) 1037467 779665 131 1254 0 0% 0 0 0
hexapdf (click) 1151131 924774 682 7966 9 0% 0 0 0
liquid-render (click) 523227 407567 150 1707 2 0% 0 0 0
mail (click) 944411 679946 374 5768 17 0% 0 0 0
psych-load (click) 346651 262694 68 476 1 0% 0 0 0
railsbench (click) 2659739 1968299 1436 9977 16 0% 0 0 0
binarytrees (click) 172187 128374 13 58 0 0% 0 0 0
chunky_png (click) 386395 288988 88 995 0 0% 0 0 0
erubi (click) 323611 246749 10 79 0 0% 0 0 0
erubi_rails (click) 1963803 1429484 300 2012 4 0% 0 0 0
fannkuchredux (click) 186075 138504 10 188 0 0% 0 0 0
lee (click) 385819 291264 58 630 0 0% 0 0 0
nbody (click) 182363 137273 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 322267 257651 144 1579 1 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2175963 1657008 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) 171547 127788 11 51 0 0% 0 0 0
respond_to (click) 172379 128305 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170395 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.