YJIT Benchmarks

Details for Benchmarks at 2022-06-01 07:13:45

Overall YJIT is 26.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.9% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 138 75 138 20 138
mail 5 107 75 107 20 107
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 67 75 67 20 67
chunky_png 5 29 75 29 20 29
discourse 5 33 75 33 20 33
erubi 5 49 75 49 20 49
erubi_rails 5 793 75 793 20 793
fannkuchredux 5 15 74 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 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 441 75 441 20 441
fib 5 320 75 320 20 320
getivar 5 756 75 756 20 756
keyword_args 5 378 75 378 20 378
respond_to 5 110 75 110 20 110
setivar 5 1866 75 1866 20 1866
str_concat 5 195 75 195 20 195

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) 1018459 756757 131 1281 0 0% 0 0 0
hexapdf (click) 1119963 878406 682 7751 10 0% 0 0 0
liquid-render (click) 504987 387373 150 1546 2 0% 0 0 0
mail (click) 908315 655479 374 5500 15 0% 0 0 0
psych-load (click) 339419 254749 68 457 1 0% 0 0 0
railsbench (click) 2635355 1924772 1436 9821 16 0% 0 0 0
binarytrees (click) 174235 130473 13 58 0 0% 0 0 0
chunky_png (click) 383387 285866 88 1028 0 0% 0 0 0
discourse (click) 6020571 4464981 3270 26121 86 0% 2 0 0
erubi (click) 316507 240575 10 79 0 0% 0 0 0
erubi_rails (click) 1949979 1402692 300 2003 4 0% 0 0 0
fannkuchredux (click) 187931 140793 10 188 0 0% 0 0 0
lee (click) 377947 283302 58 622 0 0% 0 0 0
nbody (click) 183387 137296 12 158 0 0% 0 0 0
optcarrot (click) 513243 441684 207 3571 20 0% 0 0 0
rubykon (click) 318939 251231 144 1536 1 0% 0 0 0
30k_ifelse (click) 5562971 4350419 9265 57804 0 0% 0 0 0
30k_methods (click) 2177307 1658316 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172443 128724 10 49 0 0% 0 0 0
fib (click) 170331 128145 10 38 0 0% 0 0 0
getivar (click) 172699 130843 10 65 0 0% 0 0 0
keyword_args (click) 172763 129178 11 51 0 0% 0 0 0
respond_to (click) 174875 130556 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 172123 129500 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.