YJIT Benchmarks

Details for Benchmarks at 2022-03-14 19:16:41

Overall YJIT is 30.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.5% 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 5 178 75 178 20 178
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
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 33 75 33 20 33
erubi 5 48 75 48 20 48
erubi_rails 5 987 75 987 20 987
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 283 75 283 20 283
optcarrot 5 15 75 15 20 15
rubykon 5 15 38 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 320 75 320 20 320
getivar 5 772 75 772 20 772
keyword_args 5 378 75 378 20 378
respond_to 5 108 75 108 20 108
setivar 5 1894 75 1894 20 1894

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) 991377 760539 185 1200 0 0% 0 0 0
hexapdf (click) 1113105 912055 599 8163 613 7% 0 0 320
liquid-render (click) 493329 391752 143 1566 95 6% 0 0 1
mail (click) 895761 671210 324 5510 125 2% 0 0 39
psych-load (click) 330449 261390 59 434 1 0% 0 0 0
railsbench (click) 2539025 1934952 1297 9392 268 2% 0 0 26
binarytrees (click) 152401 117096 11 59 0 0% 0 0 0
chunky_png (click) 364689 284221 85 861 0 0% 0 0 0
discourse (click) 22348881 11240234 3094 280211 257048 91% 2 0 133
erubi (click) 321617 254838 10 79 0 0% 0 0 0
erubi_rails (click) 1907089 1436002 262 1904 18 0% 0 0 3
fannkuchredux (click) 166609 128010 8 189 0 0% 0 0 0
lee (click) 373329 294333 45 587 69 11% 0 0 12
nbody (click) 161553 124184 10 159 0 0% 0 0 0
optcarrot (click) 489297 430143 198 3576 20 0% 0 0 0
rubykon (click) 295953 239442 140 1565 1 0% 0 0 0
30k_ifelse (click) 5541521 4337420 9263 57805 0 0% 0 0 0
30k_methods (click) 2156497 1645769 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150417 115038 8 50 0 0% 0 0 0
fib (click) 149265 115195 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) 152913 117066 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.