YJIT Benchmarks

Details for Benchmarks at 2022-05-26 19:12:42

Overall YJIT is 28.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 19.4% 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.

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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 137 75 137 20 137
mail 5 106 75 106 20 106
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 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 48 75 48 20 48
erubi_rails 5 784 75 784 20 784
fannkuchredux 5 15 75 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 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 433 75 433 20 433
fib 5 320 75 320 20 320
getivar 5 760 75 760 20 760
keyword_args 5 374 75 374 20 374
respond_to 5 106 75 106 20 106
setivar 5 1841 75 1841 20 1841
str_concat 5 195 75 195 20 195

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) 1014043 754071 131 1248 0 0% 0 0 0
hexapdf (click) 1119131 877820 682 7743 10 0% 0 0 0
liquid-render (click) 505435 387445 150 1551 2 0% 0 0 0
mail (click) 891803 644013 374 5325 15 0% 0 0 0
psych-load (click) 339355 254724 68 457 1 0% 0 0 0
railsbench (click) 2636699 1926454 1436 9807 16 0% 0 0 0
binarytrees (click) 172571 129234 13 58 0 0% 0 0 0
chunky_png (click) 380315 284093 88 1001 0 0% 0 0 0
discourse (click) 5892443 4372118 3162 25031 82 0% 2 0 0
erubi (click) 317403 241400 10 79 0 0% 0 0 0
erubi_rails (click) 1953819 1404842 300 2031 4 0% 0 0 0
fannkuchredux (click) 186587 139932 10 188 0 0% 0 0 0
lee (click) 377947 283302 58 622 0 0% 0 0 0
nbody (click) 183387 137296 12 158 0 0% 0 0 0
optcarrot (click) 514907 442923 207 3571 20 0% 0 0 0
rubykon (click) 319515 251771 144 1543 2 0% 0 0 0
30k_ifelse (click) 5562971 4350419 9265 57804 0 0% 0 0 0
30k_methods (click) 2178459 1659259 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172443 128724 10 49 0 0% 0 0 0
fib (click) 170907 128332 10 38 0 0% 0 0 0
getivar (click) 172955 131221 10 65 0 0% 0 0 0
keyword_args (click) 171931 128504 11 51 0 0% 0 0 0
respond_to (click) 173211 129317 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 172635 129687 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.