YJIT Benchmarks

Details for Benchmarks at 2022-05-29 19:12:51

Overall YJIT is 33.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.7% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 137 75 137 20 137
mail 5 104 75 104 20 104
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 29 75 29 20 29
discourse 5 33 75 33 20 33
erubi 5 47 75 47 20 47
erubi_rails 5 811 75 811 20 811
fannkuchredux 5 15 52 15 20 15
lee 5 22 75 22 20 22
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 26 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 320 75 320 20 320
getivar 5 767 75 767 20 767
keyword_args 5 379 75 379 20 379
respond_to 5 104 75 104 20 104
setivar 5 1906 75 1906 20 1906
str_concat 5 198 75 198 20 198

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) 1015707 754770 131 1255 0 0% 0 0 0
hexapdf (click) 1120603 878745 683 7757 9 0% 0 0 0
liquid-render (click) 506203 388064 150 1588 2 0% 0 0 0
mail (click) 920667 664093 374 5607 15 0% 0 0 0
psych-load (click) 339419 254749 68 457 1 0% 0 0 0
railsbench (click) 2645019 1931331 1436 9890 16 0% 0 0 0
binarytrees (click) 173915 130095 13 58 0 0% 0 0 0
chunky_png (click) 379419 283599 88 993 0 0% 0 0 0
discourse (click) 5936923 4404891 3197 25401 84 0% 2 0 0
erubi (click) 317403 241481 10 79 0 0% 0 0 0
erubi_rails (click) 1954459 1405149 300 2035 4 0% 0 0 0
fannkuchredux (click) 188251 141171 10 188 0 0% 0 0 0
lee (click) 378331 283680 58 622 0 0% 0 0 0
nbody (click) 182363 136813 12 158 0 0% 0 0 0
optcarrot (click) 514843 442923 207 3571 20 0% 0 0 0
rubykon (click) 318939 251422 144 1537 1 0% 0 0 0
30k_ifelse (click) 5562971 4350419 9265 57804 0 0% 0 0 0
30k_methods (click) 2178139 1658881 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172571 128724 10 49 0 0% 0 0 0
fib (click) 170843 128332 10 38 0 0% 0 0 0
getivar (click) 172699 130843 10 65 0 0% 0 0 0
keyword_args (click) 173595 129743 11 51 0 0% 0 0 0
respond_to (click) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 172955 130065 12 62 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.