YJIT Benchmarks

Details for Benchmarks at 2022-02-18 07:12:21

Overall YJIT is 32.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.7% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 177 20 177 75 177 20 177
hexapdf 5 15 20 15 20 15
liquid-render 5 155 20 155 75 155 20 155
mail 5 122 20 122 75 122 20 122
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 5 967 20 967 75 967 20 967
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 55 20 55 75 55 20 55
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 425 20 425 75 425 20 425
fib 5 320 20 320 75 320 20 320
getivar 5 795 20 795 75 795 20 795
keyword_args 5 376 20 376 75 376 20 376
respond_to 5 103 20 103 75 103 20 103
setivar 5 1672 20 1672 75 1672 20 1672

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) 993809 761661 185 1199 0 0% 0 0 0
hexapdf (click) 1119633 917387 600 8192 613 7% 0 0 320
liquid-render (click) 489105 389140 143 1505 95 6% 0 0 1
mail (click) 883601 662531 324 5328 125 2% 0 0 39
psych-load (click) 334481 264570 59 434 1 0% 0 0 0
railsbench (click) 2536657 1934550 1297 9343 268 2% 0 0 26
binarytrees (click) 150801 115689 11 59 0 0% 0 0 0
discourse (click) 22708945 11407834 3133 285504 261958 91% 2 0 133
erubi (click) 325905 258141 10 79 0 0% 0 0 0
erubi_rails (click) 1910801 1439435 262 1900 18 0% 0 0 3
fannkuchredux (click) 165073 126716 8 189 0 0% 0 0 0
lee (click) 376657 297116 45 587 69 11% 0 0 12
nbody (click) 160593 123219 10 159 0 0% 0 0 0
optcarrot (click) 487825 428849 198 3576 20 0% 0 0 0
rubykon (click) 291473 235735 140 1532 3 0% 0 0 0
30k_ifelse (click) 5539857 4336013 9263 57805 0 0% 0 0 0
30k_methods (click) 2155025 1644475 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149265 114318 8 50 0 0% 0 0 0
fib (click) 148305 114230 8 39 0 0% 0 0 0
getivar (click) 149713 116550 8 66 0 0% 0 0 0
keyword_args (click) 150161 114959 9 52 0 0% 0 0 0
respond_to (click) 151441 115772 8 65 0 0% 0 0 0
setivar (click) 149585 114961 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.