YJIT Benchmarks

Details for Benchmarks at 2022-02-20 07:12:09

Overall YJIT is 32.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.2% 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 5 172 20 172 75 172 20 172
hexapdf 5 15 20 15 20 15
liquid-render 5 153 20 153 75 153 20 153
mail 5 120 20 120 75 120 20 120
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 75 20 75 75 75 20 75
discourse 5 34 20 34 75 34 20 34
erubi 5 48 20 48 75 48 20 48
erubi_rails 5 949 20 949 75 949 20 949
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 21 20 21 75 21 20 21
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 37 15 20 15
30k_ifelse 5 56 20 56 75 56 20 56
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 440 20 440 75 440 20 440
fib 5 320 20 320 75 320 20 320
getivar 5 768 20 768 75 768 20 768
keyword_args 5 378 20 378 75 378 20 378
respond_to 5 110 20 110 75 110 20 110
setivar 5 1766 20 1766 75 1766 20 1766

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) 994129 761872 185 1199 0 0% 0 0 0
hexapdf (click) 1117457 915548 599 8163 613 7% 0 0 320
liquid-render (click) 495121 394061 143 1570 95 6% 0 0 1
mail (click) 898257 673478 324 5490 125 2% 0 0 39
psych-load (click) 334865 264786 59 434 1 0% 0 0 0
railsbench (click) 2538321 1935777 1297 9366 268 2% 0 0 26
binarytrees (click) 151121 116067 11 59 0 0% 0 0 0
discourse (click) 22656465 11363756 3094 284967 261775 91% 2 0 133
erubi (click) 325393 257812 10 79 0 0% 0 0 0
erubi_rails (click) 1910609 1438877 262 1881 18 0% 0 0 3
fannkuchredux (click) 165073 126716 8 189 0 0% 0 0 0
lee (click) 376785 297229 45 587 69 11% 0 0 12
nbody (click) 160081 122890 10 159 0 0% 0 0 0
optcarrot (click) 487313 428520 198 3576 20 0% 0 0 0
rubykon (click) 297105 240347 140 1590 1 0% 0 0 0
30k_ifelse (click) 5539857 4336013 9263 57805 0 0% 0 0 0
30k_methods (click) 2155345 1644853 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149713 114622 8 50 0 0% 0 0 0
fib (click) 147857 113926 8 39 0 0% 0 0 0
getivar (click) 149585 116437 8 66 0 0% 0 0 0
keyword_args (click) 150289 115072 9 52 0 0% 0 0 0
respond_to (click) 151761 116150 8 65 0 0% 0 0 0
setivar (click) 150097 115290 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.