YJIT Benchmarks

Details for Benchmarks at 2022-06-23 05:15:40 UTC

Overall YJIT is 33.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 22.7% 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 5 189 75 189 20 189
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 124 75 124 20 124
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 30 75 30 20 30
erubi 5 49 75 49 20 49
erubi_rails 5 1001 75 1001 20 1001
fannkuchredux 5 15 52 15 20 15
lee 5 22 75 22 20 22
nbody 5 272 75 272 20 272
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 5 413 75 413 20 413
fib 5 315 75 315 20 315
getivar 5 754 75 754 20 754
keyword_args 5 379 75 379 20 379
respond_to 5 101 75 101 20 101
setivar 5 1855 75 1855 20 1855
str_concat 5 199 75 199 20 199

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) 1016411 755836 131 1267 0 0% 0 0 0
hexapdf (click) 1120155 879540 682 7750 10 0% 0 0 0
liquid-render (click) 507867 389188 150 1582 2 0% 0 0 0
mail (click) 909467 657271 374 5510 15 0% 0 0 0
psych-load (click) 339035 254740 68 457 1 0% 0 0 0
railsbench (click) 2625563 1919261 1436 9886 16 0% 0 0 0
binarytrees (click) 173211 129800 13 58 0 0% 0 0 0
chunky_png (click) 379419 283725 88 996 0 0% 0 0 0
erubi (click) 319579 243165 10 79 0 0% 0 0 0
erubi_rails (click) 1926619 1388475 300 1951 4 0% 0 0 0
fannkuchredux (click) 187227 140498 10 188 0 0% 0 0 0
lee (click) 378459 284131 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) 319387 252008 144 1547 1 0% 0 0 0
30k_ifelse (click) 5562267 4350124 9265 57804 0 0% 0 0 0
30k_methods (click) 2177435 1658586 5784 19361 0 0% 0 0 0
cfunc_itself (click) 171739 128429 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) 172571 129070 11 51 0 0% 0 0 0
respond_to (click) 173851 129883 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.