YJIT Benchmarks

Details for Benchmarks at 2022-02-06 07:11:52

Overall YJIT is 31.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.0% 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.

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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 5 173 20 173 75 173 20 173
hexapdf 5 15 20 15 20 15
liquid-render 5 154 20 154 75 154 20 154
mail 5 121 20 121 75 121 20 121
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 47 20 47 75 47 20 47
erubi_rails 5 965 20 965 75 965 20 965
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 5 447 20 447 75 447 20 447
fib 5 320 20 320 75 320 20 320
getivar 5 800 20 800 75 800 20 800
keyword_args 5 377 20 377 75 377 20 377
respond_to 5 104 20 104 75 104 20 104
setivar 5 1777 20 1777 75 1777 20 1777

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) 999441 766763 185 1196 0 0% 0 0 0
hexapdf (click) 1118737 916468 599 8167 613 7% 0 0 321
liquid-render (click) 489233 389036 143 1505 95 6% 0 0 1
mail (click) 903313 676748 325 5523 125 2% 0 0 39
psych-load (click) 336657 266712 59 434 1 0% 0 0 0
railsbench (click) 2538705 1935243 1297 9358 268 2% 0 0 26
binarytrees (click) 151761 116278 11 59 0 0% 0 0 0
discourse (click) 22707153 11406205 3134 285480 261934 91% 2 0 133
erubi (click) 330449 261910 10 79 0 0% 0 0 0
erubi_rails (click) 1909521 1438332 262 1875 18 0% 0 0 3
fannkuchredux (click) 165521 126976 8 189 0 0% 0 0 0
lee (click) 377617 297705 45 587 69 11% 0 0 12
nbody (click) 160529 123150 10 159 0 0% 0 0 0
optcarrot (click) 488273 429109 198 3576 20 0% 0 0 0
rubykon (click) 293073 236776 140 1541 1 0% 0 0 0
30k_ifelse (click) 5540305 4336273 9263 57805 0 0% 0 0 0
30k_methods (click) 2155473 1644735 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150225 114907 8 50 0 0% 0 0 0
fib (click) 148305 114186 8 39 0 0% 0 0 0
getivar (click) 150033 116697 8 66 0 0% 0 0 0
keyword_args (click) 150609 115219 9 52 0 0% 0 0 0
respond_to (click) 152401 116361 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.