YJIT Benchmarks

Details for Benchmarks at 2022-02-04 07:11:30

Overall YJIT is 32.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.0% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 175 20 175 75 175 20 175
hexapdf 5 15 20 15 20 15
liquid-render 5 152 20 152 75 152 20 152
mail 5 123 20 123 75 123 20 123
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 76 20 76 75 76 20 76
discourse 5 34 20 34 75 34 20 34
erubi 5 48 20 48 75 48 20 48
erubi_rails 5 960 20 960 75 960 20 960
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 22 20 22 75 22 20 22
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 38 15 20 15
30k_ifelse 5 54 20 54 75 54 20 54
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 444 20 444 75 444 20 444
fib 5 320 20 320 75 320 20 320
getivar 5 795 20 795 75 795 20 795
keyword_args 5 380 20 380 75 380 20 380
respond_to 5 101 20 101 75 101 20 101
setivar 5 1691 20 1691 75 1691 20 1691

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) 999377 766685 185 1201 0 0% 0 0 0
hexapdf (click) 1118865 916663 599 8168 615 7% 0 0 321
liquid-render (click) 495249 394078 143 1568 95 6% 0 0 1
mail (click) 882641 661961 324 5317 125 2% 0 0 39
psych-load (click) 337233 267066 59 434 1 0% 0 0 0
railsbench (click) 2535633 1933093 1297 9316 268 2% 0 0 26
binarytrees (click) 151185 115924 11 59 0 0% 0 0 0
discourse (click) 22704849 11405252 3133 285456 261961 91% 2 0 133
erubi (click) 330449 261910 10 79 0 0% 0 0 0
erubi_rails (click) 1909777 1438732 262 1875 18 0% 0 0 3
fannkuchredux (click) 165009 126647 8 189 0 0% 0 0 0
lee (click) 377105 297376 45 587 69 11% 0 0 12
nbody (click) 161041 123479 10 159 0 0% 0 0 0
optcarrot (click) 487761 428780 198 3576 20 0% 0 0 0
rubykon (click) 293009 236771 141 1540 1 0% 0 0 0
30k_ifelse (click) 5540817 4336602 9263 57805 0 0% 0 0 0
30k_methods (click) 2155985 1645064 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149713 114578 8 50 0 0% 0 0 0
fib (click) 148305 114186 8 39 0 0% 0 0 0
getivar (click) 150545 117026 8 66 0 0% 0 0 0
keyword_args (click) 151121 115548 9 52 0 0% 0 0 0
respond_to (click) 152273 116263 8 65 0 0% 0 0 0
setivar (click) 150545 115550 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.