YJIT Benchmarks

Details for Benchmarks at 2022-02-09 19:11:31

Overall YJIT is 31.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.9% 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 5 174 20 174 75 174 20 174
hexapdf 5 15 20 15 20 15
liquid-render 5 153 20 153 75 153 20 153
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 5 970 20 970 75 970 20 970
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 38 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 5 450 20 450 75 450 20 450
fib 5 320 20 320 75 320 20 320
getivar 5 771 20 771 75 771 20 771
keyword_args 5 376 20 376 75 376 20 376
respond_to 5 102 20 102 75 102 20 102
setivar 5 1681 20 1681 75 1681 20 1681

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) 999761 767045 185 1199 0 0% 0 0 0
hexapdf (click) 1118609 916327 600 8170 613 7% 0 0 321
liquid-render (click) 489105 389139 143 1502 95 6% 0 0 1
mail (click) 894673 671353 324 5454 125 2% 0 0 39
psych-load (click) 336657 266712 59 434 1 0% 0 0 0
railsbench (click) 2536593 1934144 1297 9290 269 2% 0 0 26
binarytrees (click) 151249 115949 11 59 0 0% 0 0 0
discourse (click) 22646161 11358283 3093 284906 261786 91% 2 0 133
erubi (click) 330449 261910 10 79 0 0% 0 0 0
erubi_rails (click) 1912657 1440732 262 1899 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) 161041 123479 10 159 0 0% 0 0 0
optcarrot (click) 488273 429109 198 3576 20 0% 0 0 0
rubykon (click) 293009 236811 140 1540 1 0% 0 0 0
30k_ifelse (click) 5540305 4336273 9263 57805 0 0% 0 0 0
30k_methods (click) 2155985 1645064 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149713 114578 8 50 0 0% 0 0 0
fib (click) 148817 114515 8 39 0 0% 0 0 0
getivar (click) 150033 116697 8 66 0 0% 0 0 0
keyword_args (click) 150737 115332 9 52 0 0% 0 0 0
respond_to (click) 151761 115934 8 65 0 0% 0 0 0
setivar (click) 149905 115123 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.