YJIT Benchmarks

Details for Benchmarks at 2022-04-25 19:17:23

Overall YJIT is 31.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.4% 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 5 182 75 182 20 182
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 29 75 29 20 29
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 970 75 970 20 970
fannkuchredux 5 15 75 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 27 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 28 22 20 22
cfunc_itself 5 428 75 428 20 428
fib 5 320 75 320 20 320
getivar 5 768 75 768 20 768
keyword_args 5 375 75 375 20 375
respond_to 5 107 75 107 20 107
setivar 5 1808 75 1808 20 1808

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) 991633 813056 185 1185 0 0% 0 0 0
hexapdf (click) 1098961 921790 599 7892 429 5% 0 0 321
liquid-render (click) 503825 424741 143 1526 92 6% 0 0 5
mail (click) 847249 657452 324 4985 96 1% 0 0 111
psych-load (click) 341329 286443 59 434 1 0% 0 0 0
railsbench (click) 2591057 2097699 1297 9312 225 2% 0 0 26
binarytrees (click) 168913 138452 11 58 0 0% 0 0 0
chunky_png (click) 374993 308483 85 861 0 0% 0 0 0
discourse (click) 6250001 5610878 3127 26967 3211 11% 2 0 140
erubi (click) 329233 276985 10 79 0 0% 0 0 0
erubi_rails (click) 1955281 1595191 262 1868 12 0% 0 0 3
fannkuchredux (click) 182673 149150 8 188 0 0% 0 0 0
lee (click) 378001 315083 45 582 69 11% 0 0 13
nbody (click) 178193 145653 10 158 0 0% 0 0 0
optcarrot (click) 504913 450954 198 3575 20 0% 0 0 0
rubykon (click) 310737 258764 140 1528 1 0% 0 0 0
30k_ifelse (click) 5558737 4359150 9263 57804 0 0% 0 0 0
30k_methods (click) 2173905 1667612 5782 19361 0 0% 0 0 0
cfunc_itself (click) 168145 137455 8 49 0 0% 0 0 0
fib (click) 165457 136360 8 38 0 0% 0 0 0
getivar (click) 168465 139574 8 65 0 0% 0 0 0
keyword_args (click) 169041 138096 9 51 0 0% 0 0 0
respond_to (click) 169041 138206 8 64 0 0% 0 0 0
setivar (click) 167185 137395 8 38 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.