YJIT Benchmarks

Details for Benchmarks at 2022-09-12 05:39:49

Overall YJIT is 33.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.4% 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 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 161 75 161 20 161
mail 5 126 75 126 20 126
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 30 75 30 20 30
erubi 5 67 75 67 20 67
erubi_rails 5 1038 75 1038 20 1038
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
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 72 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 447 75 447 20 447
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 381 75 381 20 381
respond_to 5 104 75 104 20 104
setivar 5 493 75 493 20 493
str_concat 5 455 75 455 20 455

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) 1073335 778556 131 1271 0 0% 0 0 0
hexapdf (click) 1184887 919528 683 8021 9 0% 0 0 0
liquid-render (click) 531895 399131 150 1674 2 0% 0 0 0
mail (click) 983287 682774 375 5851 17 0% 0 0 0
psych-load (click) 359863 263160 68 482 1 0% 0 0 0
railsbench (click) 2739511 1953705 1436 9930 16 0% 0 0 0
binarytrees (click) 175479 126523 13 58 0 0% 0 0 0
chunky_png (click) 405175 291293 88 1044 0 0% 0 0 0
erubi (click) 343159 251307 10 79 0 0% 0 0 0
erubi_rails (click) 2038391 1427833 300 2026 4 0% 0 0 0
fannkuchredux (click) 190071 136720 10 196 0 0% 0 0 0
lee (click) 398519 289451 58 634 0 0% 0 0 0
nbody (click) 188023 136584 12 171 0 0% 0 0 0
optcarrot (click) 531575 441019 207 3591 20 0% 0 0 0
rubykon (click) 331511 256271 144 1584 1 0% 0 0 0
30k_ifelse (click) 5665207 4347794 9265 57804 0 0% 0 0 0
30k_methods (click) 2208503 1655906 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175351 126099 10 49 0 0% 0 0 0
fib (click) 173687 125707 10 38 0 0% 0 0 0
getivar (click) 174135 127041 10 65 0 0% 0 0 0
keyword_args (click) 174775 126037 11 51 0 0% 0 0 0
respond_to (click) 177655 127553 10 64 0 0% 0 0 0
setivar (click) 175415 126614 10 38 0 0% 0 0 0
str_concat (click) 175351 126946 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.