YJIT Benchmarks

Details for Benchmarks at 2022-07-21 20:14:23

Overall YJIT is 35.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.5% 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 5 191 75 191 20 191
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
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 29 75 29 20 29
erubi 5 57 75 57 20 57
erubi_rails 5 1005 75 1005 20 1005
fannkuchredux 5 15 67 15 20 15
lee 5 21 75 21 20 21
nbody 5 260 75 260 20 260
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 300 75 300 20 300
getivar 5 604 75 604 20 604
keyword_args 5 376 75 376 20 376
respond_to 5 108 75 108 20 108
setivar 5 958 75 958 20 958
str_concat 5 377 75 377 20 377

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) 1034331 776843 131 1246 0 0% 0 0 0
hexapdf (click) 1151131 924737 682 7965 9 0% 0 0 0
liquid-render (click) 521627 406271 150 1691 2 0% 0 0 0
mail (click) 906907 655273 374 5384 17 0% 0 0 0
psych-load (click) 347867 263693 68 476 1 0% 0 0 0
railsbench (click) 2660315 1968185 1436 9984 16 0% 0 0 0
binarytrees (click) 171739 128078 13 58 0 0% 0 0 0
chunky_png (click) 386779 289084 88 998 0 0% 0 0 0
erubi (click) 323739 246867 10 79 0 0% 0 0 0
erubi_rails (click) 1965019 1430832 300 2036 4 0% 0 0 0
fannkuchredux (click) 185563 138208 10 188 0 0% 0 0 0
lee (click) 386715 292170 58 630 0 0% 0 0 0
nbody (click) 182811 137569 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 322715 258120 144 1590 2 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657304 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127147 10 49 0 0% 0 0 0
fib (click) 169179 126755 10 38 0 0% 0 0 0
getivar (click) 170459 128546 10 65 0 0% 0 0 0
keyword_args (click) 171547 127788 11 51 0 0% 0 0 0
respond_to (click) 172827 128601 10 64 0 0% 0 0 0
setivar (click) 171291 127830 10 38 0 0% 0 0 0
str_concat (click) 170395 127773 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.