YJIT Benchmarks

Details for Benchmarks at 2022-05-04 19:12:48

Overall YJIT is 33.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.5% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 990 75 990 20 990
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 27 15 20 15
30k_ifelse 5 52 75 52 20 52
30k_methods 5 22 29 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 319 75 319 20 319
getivar 5 764 75 764 20 764
keyword_args 5 329 75 329 20 329
respond_to 5 105 75 105 20 105
setivar 5 1850 75 1850 20 1850
str_concat 5 198 75 198 20 198

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) 1015515 754207 131 1260 0 0% 0 0 0
hexapdf (click) 1115163 874345 682 7709 10 0% 0 0 0
liquid-render (click) 514459 394037 150 1656 2 0% 0 0 0
mail (click) 891547 645545 374 5331 15 0% 0 0 0
psych-load (click) 339419 255124 68 457 1 0% 0 0 0
railsbench (click) 2625435 1916741 1435 9844 16 0% 0 0 0
binarytrees (click) 173211 129880 13 58 0 0% 0 0 0
chunky_png (click) 375707 280805 88 989 0 0% 0 0 0
discourse (click) 5895643 4370476 3198 25288 83 0% 2 0 0
erubi (click) 319387 240295 10 79 0 0% 0 0 0
erubi_rails (click) 1928219 1387670 300 1974 4 0% 0 0 0
fannkuchredux (click) 187227 140578 10 188 0 0% 0 0 0
lee (click) 377883 283455 58 618 0 0% 0 0 0
nbody (click) 182683 137081 12 158 0 0% 0 0 0
optcarrot (click) 513371 442034 207 3571 20 0% 0 0 0
rubykon (click) 315675 249222 144 1514 1 0% 0 0 0
30k_ifelse (click) 5562267 4350204 9265 57804 0 0% 0 0 0
30k_methods (click) 2179291 1659634 5784 19371 0 0% 0 0 0
cfunc_itself (click) 172251 128838 10 49 0 0% 0 0 0
fib (click) 169691 127821 10 38 0 0% 0 0 0
getivar (click) 171483 130332 10 65 0 0% 0 0 0
keyword_args (click) 172571 129183 11 51 0 0% 0 0 0
respond_to (click) 173851 129963 10 64 0 0% 0 0 0
setivar (click) 171931 129152 10 38 0 0% 0 0 0
str_concat (click) 171931 129472 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.