YJIT Benchmarks

Details for Benchmarks at 2022-06-14 05:21:19

Overall YJIT is 33.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.2% 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 5 155 75 155 20 155
mail 5 125 75 125 20 125
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
discourse 5 42 75 42 20 42
erubi 5 50 75 50 20 50
erubi_rails 5 1004 75 1004 20 1004
fannkuchredux 5 15 52 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 441 75 441 20 441
fib 5 315 75 315 20 315
getivar 5 757 75 757 20 757
keyword_args 5 376 75 376 20 376
respond_to 5 105 75 105 20 105
setivar 5 1290 75 1290 20 1290
str_concat 5 200 75 200 20 200

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) 1015643 755348 131 1262 0 0% 0 0 0
hexapdf (click) 1121755 880219 682 7765 10 0% 0 0 0
liquid-render (click) 513371 393858 150 1633 2 0% 0 0 0
mail (click) 918555 663146 375 5572 15 0% 0 0 0
psych-load (click) 339483 255031 68 457 1 0% 0 0 0
railsbench (click) 2623963 1919368 1436 9865 16 0% 0 0 0
binarytrees (click) 173339 129880 13 58 0 0% 0 0 0
chunky_png (click) 383067 285986 88 1033 0 0% 0 0 0
discourse (click) 5916187 4394218 3196 25422 85 0% 2 0 0
erubi (click) 319323 242643 10 79 0 0% 0 0 0
erubi_rails (click) 1929883 1390165 300 1984 4 0% 0 0 0
fannkuchredux (click) 188251 141143 10 188 0 0% 0 0 0
lee (click) 375579 281644 58 622 0 0% 0 0 0
nbody (click) 182811 137081 12 158 0 0% 0 0 0
optcarrot (click) 514907 442895 207 3571 20 0% 0 0 0
rubykon (click) 318299 250901 144 1526 1 0% 0 0 0
30k_ifelse (click) 5563291 4350769 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659231 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172763 129074 10 49 0 0% 0 0 0
fib (click) 170331 128117 10 38 0 0% 0 0 0
getivar (click) 173019 131193 10 65 0 0% 0 0 0
keyword_args (click) 173595 129715 11 51 0 0% 0 0 0
respond_to (click) 173979 129963 10 64 0 0% 0 0 0
setivar (click) 172827 129582 10 38 0 0% 0 0 0
str_concat (click) 172955 130037 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.