YJIT Benchmarks

Details for Benchmarks at 2022-03-28 07:13:16

Overall YJIT is 29.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.7% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 181 75 181 20 181
hexapdf 5 15 20 15
liquid-render 5 154 75 154 20 154
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
discourse 5 35 75 35 20 35
erubi 5 47 75 47 20 47
erubi_rails 5 973 75 973 20 973
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 283 75 283 20 283
optcarrot 5 15 75 15 20 15
rubykon 5 15 23 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 454 75 454 20 454
fib 5 320 75 320 20 320
getivar 5 807 75 807 20 807
keyword_args 5 379 75 379 20 379
respond_to 5 102 75 102 20 102
setivar 5 1830 75 1830 20 1830

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) 987857 758189 185 1199 0 0% 0 0 0
hexapdf (click) 1113809 912601 599 8159 612 7% 0 0 320
liquid-render (click) 489105 387872 143 1529 95 6% 0 0 1
mail (click) 851025 639772 324 5049 125 2% 0 0 39
psych-load (click) 320913 252317 59 434 1 0% 0 0 0
railsbench (click) 2527057 1925403 1297 9272 268 2% 0 0 26
binarytrees (click) 144977 109857 11 59 0 0% 0 0 0
chunky_png (click) 365713 285414 85 858 0 0% 0 0 0
discourse (click) 23001233 11521800 3134 290238 266699 91% 2 0 133
erubi (click) 322129 255098 10 79 0 0% 0 0 0
erubi_rails (click) 1907985 1437162 262 1875 18 0% 0 0 3
fannkuchredux (click) 166673 128054 8 189 0 0% 0 0 0
lee (click) 372241 293099 45 587 69 11% 0 0 12
nbody (click) 162065 124444 10 159 0 0% 0 0 0
optcarrot (click) 489297 430074 198 3576 20 0% 0 0 0
rubykon (click) 294993 238366 140 1543 1 0% 0 0 0
30k_ifelse (click) 5542353 4337896 9263 57805 0 0% 0 0 0
30k_methods (click) 2157521 1646358 5782 19362 0 0% 0 0 0
cfunc_itself (click) 143441 108486 8 50 0 0% 0 0 0
fib (click) 150353 115809 8 39 0 0% 0 0 0
getivar (click) 143825 110673 8 66 0 0% 0 0 0
keyword_args (click) 143825 108798 9 52 0 0% 0 0 0
respond_to (click) 145105 109611 8 65 0 0% 0 0 0
setivar (click) 151569 116515 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.