YJIT Benchmarks

Details for Benchmarks at 2022-01-21 07:12:35

Overall YJIT is 32.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.1% 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 5 191 20 191 75 191 20 191
hexapdf 5 15 20 15 20 15
liquid-render 5 174 20 174 75 174 20 174
mail 5 141 20 141 75 141 20 141
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 90 20 90 75 90 20 90
erubi 5 55 20 55 75 55 20 55
erubi_rails 5 1019 20 1019 75 1019 20 1019
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 26 20 26 75 26 20 26
nbody 5 344 20 344 75 344 20 344
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 44 15 20 15
30k_ifelse 5 65 20 65 75 65 20 65
30k_methods 5 27 20 27 43 27 20 27
cfunc_itself 5 524 20 524 75 524 20 524
fib 5 384 20 384 75 384 20 384
getivar 5 939 20 939 75 939 20 939
keyword_args 5 453 20 453 75 453 20 453
respond_to 5 124 20 124 75 124 20 124
setivar 5 2179 20 2179 75 2179 20 2179

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) 995921 764109 185 1193 0 0% 0 0 0
hexapdf (click) 1120465 918545 599 8165 612 7% 0 0 321
liquid-render (click) 488273 388326 143 1509 95 6% 0 0 1
mail (click) 891857 668901 325 5334 125 2% 0 0 39
psych-load (click) 330001 260833 59 434 1 0% 0 0 0
railsbench (click) 2543057 1938830 1297 9374 268 2% 0 0 26
binarytrees (click) 150929 115375 11 59 0 0% 0 0 0
erubi (click) 328785 261472 10 79 0 0% 0 0 0
erubi_rails (click) 1912273 1442348 262 1902 18 0% 0 0 3
fannkuchredux (click) 164817 126186 8 189 0 0% 0 0 0
lee (click) 369297 290943 45 587 69 11% 0 0 12
nbody (click) 160273 122576 10 159 0 0% 0 0 0
optcarrot (click) 487441 428206 198 3576 20 0% 0 0 0
rubykon (click) 292497 236084 140 1539 1 0% 0 0 0
30k_ifelse (click) 5540497 4336028 9263 57805 0 0% 0 0 0
30k_methods (click) 2155153 1644161 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149393 114004 8 50 0 0% 0 0 0
fib (click) 148497 113941 8 39 0 0% 0 0 0
getivar (click) 150225 116452 8 66 0 0% 0 0 0
keyword_args (click) 150801 114974 9 52 0 0% 0 0 0
respond_to (click) 151569 115458 8 65 0 0% 0 0 0
setivar (click) 150225 114976 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.