YJIT Benchmarks

Details for Benchmarks at 2022-03-19 07:12:41

Overall YJIT is 35.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.9% 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 5 183 75 183 20 183
hexapdf 5 15 20 15
liquid-render 5 152 75 152 20 152
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 67 75 67 20 67
chunky_png 5 30 75 30 20 30
discourse 5 35 75 35 20 35
erubi 5 48 75 48 20 48
erubi_rails 5 967 75 967 20 967
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 284 75 284 20 284
optcarrot 5 15 75 15 20 15
rubykon 5 15 38 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 318 75 318 20 318
getivar 5 801 75 801 20 801
keyword_args 5 372 75 372 20 372
respond_to 5 100 75 100 20 100
setivar 5 1916 75 1916 20 1916

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) 984849 752923 185 1199 0 0% 0 0 0
hexapdf (click) 1115153 913611 599 8169 613 7% 0 0 320
liquid-render (click) 487569 387633 143 1491 95 6% 0 0 1
mail (click) 858193 644746 324 5109 125 2% 0 0 39
psych-load (click) 330897 261772 59 434 1 0% 0 0 0
railsbench (click) 2539025 1934787 1297 9387 268 2% 0 0 26
binarytrees (click) 143953 109308 11 59 0 0% 0 0 0
chunky_png (click) 366673 286348 85 864 0 0% 0 0 0
discourse (click) 22948369 11474485 3093 289638 266457 91% 2 0 133
erubi (click) 322193 255167 10 79 0 0% 0 0 0
erubi_rails (click) 1905169 1435324 262 1873 18 0% 0 0 3
fannkuchredux (click) 166609 127962 8 189 0 0% 0 0 0
lee (click) 372753 293719 45 587 69 11% 0 0 12
nbody (click) 161553 124184 10 159 0 0% 0 0 0
optcarrot (click) 489361 430095 198 3576 20 0% 0 0 0
rubykon (click) 296017 239198 140 1564 1 0% 0 0 0
30k_ifelse (click) 5541329 4337307 9263 57805 0 0% 0 0 0
30k_methods (click) 2156497 1645769 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150737 115612 8 50 0 0% 0 0 0
fib (click) 149329 115220 8 39 0 0% 0 0 0
getivar (click) 151057 117731 8 66 0 0% 0 0 0
keyword_args (click) 151633 116253 9 52 0 0% 0 0 0
respond_to (click) 153425 117395 8 65 0 0% 0 0 0
setivar (click) 151057 116255 8 39 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.