YJIT Benchmarks

Details for Benchmarks at 2022-09-05 05:38:18

Overall YJIT is 34.6% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.1% 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 5 197 75 197 20 197
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 128 75 128 20 128
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1025 75 1025 20 1025
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 251 75 251 20 251
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 54 70 54 20 54
30k_methods 5 25 22 25 20 25
cfunc_itself 5 446 75 446 20 446
fib 5 308 75 308 20 308
getivar 5 612 75 612 20 612
keyword_args 5 379 75 379 20 379
respond_to 5 103 75 103 20 103
setivar 5 969 75 969 20 969
str_concat 5 492 75 492 20 492

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) 1079415 782786 131 1285 0 0% 0 0 0
hexapdf (click) 1193079 923097 682 8004 9 0% 0 0 0
liquid-render (click) 536631 402323 150 1673 2 0% 0 0 0
mail (click) 959927 667738 374 5596 17 0% 0 0 0
psych-load (click) 360375 263198 68 482 1 0% 0 0 0
railsbench (click) 2763127 1970110 1436 10039 16 0% 0 0 0
binarytrees (click) 176183 127426 13 58 0 0% 0 0 0
chunky_png (click) 404023 291194 88 1030 0 0% 0 0 0
erubi (click) 343159 251892 10 79 0 0% 0 0 0
erubi_rails (click) 2044023 1430868 300 1996 4 0% 0 0 0
fannkuchredux (click) 188727 136251 10 196 0 0% 0 0 0
lee (click) 397495 289177 58 634 0 0% 0 0 0
nbody (click) 188471 136946 12 171 0 0% 0 0 0
optcarrot (click) 536247 442460 207 3588 20 0% 0 0 0
rubykon (click) 335479 259128 144 1600 1 0% 0 0 0
30k_ifelse (click) 5703991 4347654 9265 57804 0 0% 0 0 0
30k_methods (click) 2208887 1656356 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175735 126524 10 49 0 0% 0 0 0
fib (click) 173111 125807 10 38 0 0% 0 0 0
getivar (click) 174903 127894 10 65 0 0% 0 0 0
keyword_args (click) 175159 126600 11 51 0 0% 0 0 0
respond_to (click) 176759 127413 10 64 0 0% 0 0 0
setivar (click) 176311 127368 10 38 0 0% 0 0 0
str_concat (click) 174455 126806 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.