YJIT Benchmarks

Details for Benchmarks at 2022-04-24 07:12:33

Overall YJIT is 31.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.6% 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 5 157 75 157 20 157
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 30 75 30 20 30
discourse 5 33 75 33 20 33
erubi 5 47 75 47 20 47
erubi_rails 5 982 75 982 20 982
fannkuchredux 5 15 73 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 28 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 21 29 21 20 21
cfunc_itself 5 443 75 443 20 443
fib 5 319 75 319 20 319
getivar 5 773 75 773 20 773
keyword_args 5 375 75 375 20 375
respond_to 5 104 75 104 20 104
setivar 5 1794 75 1794 20 1794

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) 991825 813332 185 1185 0 0% 0 0 0
hexapdf (click) 1099025 922742 599 7886 429 5% 0 0 321
liquid-render (click) 505425 426493 143 1563 92 5% 0 0 5
mail (click) 844881 655727 324 4968 96 1% 0 0 111
psych-load (click) 341841 286772 59 434 1 0% 0 0 0
railsbench (click) 2598481 2103636 1297 9376 224 2% 0 0 26
binarytrees (click) 169681 138826 11 58 0 0% 0 0 0
chunky_png (click) 373585 307060 85 857 0 0% 0 0 0
discourse (click) 6194193 5566006 3090 26453 3122 11% 2 0 140
erubi (click) 327889 275812 10 79 0 0% 0 0 0
erubi_rails (click) 1956817 1594768 262 1886 12 0% 0 0 3
fannkuchredux (click) 183441 149524 8 188 0 0% 0 0 0
lee (click) 377745 314892 45 582 68 11% 0 0 13
nbody (click) 178961 146027 10 158 0 0% 0 0 0
optcarrot (click) 504913 450954 198 3575 20 0% 0 0 0
rubykon (click) 310417 258812 140 1530 2 0% 0 0 0
30k_ifelse (click) 5557969 4358776 9263 57804 0 0% 0 0 0
30k_methods (click) 2173905 1667612 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166673 136330 8 50 0 0% 0 0 0
fib (click) 164945 134801 8 39 0 0% 0 0 0
getivar (click) 167441 137686 8 66 0 0% 0 0 0
keyword_args (click) 168081 137300 9 52 0 0% 0 0 0
respond_to (click) 169297 137021 8 65 0 0% 0 0 0
setivar (click) 167185 137395 8 38 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.