YJIT Benchmarks

Details for Benchmarks at 2022-09-20 05:38:42

Overall YJIT is 37.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.1% 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.

Want Raw Graphs and CSV?

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 5 197 75 197 20 197
hexapdf 5 15 20 15
liquid-render 5 170 75 170 20 170
mail 5 129 75 129 20 129
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 85 75 85 20 85
chunky_png 5 30 75 30 20 30
erubi 5 67 75 67 20 67
erubi_rails 5 1051 75 1051 20 1051
fannkuchredux 5 15 56 15 20 15
lee 5 20 75 20 20 20
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 55 68 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 430 75 430 20 430
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 359 75 359 20 359
respond_to 5 666 75 666 20 666
setivar 5 396 75 396 20 396
str_concat 5 420 75 420 20 420

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) 1068407 778183 131 1284 0 0% 0 0 0
hexapdf (click) 1178615 919666 683 8049 9 0% 0 0 0
liquid-render (click) 526583 398738 150 1694 2 0% 0 0 0
mail (click) 943927 657611 374 5555 17 0% 0 0 0
psych-load (click) 356215 261195 68 480 1 0% 0 0 0
railsbench (click) 2729143 1961913 1436 10056 16 0% 0 0 0
binarytrees (click) 177079 127640 13 64 0 0% 0 0 0
chunky_png (click) 397367 287378 88 1003 0 0% 0 0 0
erubi (click) 341111 250594 10 79 0 0% 0 0 0
erubi_rails (click) 2023351 1428828 300 2038 4 0% 0 0 0
fannkuchredux (click) 189879 136594 10 196 0 0% 0 0 0
lee (click) 396471 288578 58 634 0 0% 0 0 0
nbody (click) 187255 136324 12 171 0 0% 0 0 0
optcarrot (click) 531831 441312 207 3592 20 0% 0 0 0
rubykon (click) 327799 254260 144 1564 2 0% 0 0 0
30k_ifelse (click) 5664503 4347597 9265 57804 0 0% 0 0 0
30k_methods (click) 2208375 1655471 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174391 125599 10 49 0 0% 0 0 0
fib (click) 172663 125157 10 38 0 0% 0 0 0
getivar (click) 174455 127244 10 65 0 0% 0 0 0
keyword_args (click) 175095 126240 11 51 0 0% 0 0 0
respond_to (click) 174903 127116 10 64 0 0% 0 0 0
setivar (click) 174775 126467 10 38 0 0% 0 0 0
str_concat (click) 174391 126446 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.