YJIT Benchmarks

Details for Benchmarks at 2022-05-22 07:13:56

Overall YJIT is 31.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.5% 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 5 190 75 190 20 190
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 63 75 63 20 63
chunky_png 5 29 75 29 20 29
discourse 5 32 75 32 20 32
erubi 5 49 75 49 20 49
erubi_rails 5 802 75 802 20 802
fannkuchredux 5 15 51 15 20 15
lee 5 22 75 22 20 22
nbody 5 273 75 273 20 273
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 320 75 320 20 320
getivar 5 759 75 759 20 759
keyword_args 5 378 75 378 20 378
respond_to 5 107 75 107 20 107
setivar 5 1868 75 1868 20 1868
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) 1015195 754483 131 1255 0 0% 0 0 0
hexapdf (click) 1120859 878994 683 7757 9 0% 0 0 0
liquid-render (click) 504219 386564 150 1543 2 0% 0 0 0
mail (click) 929883 670633 374 5712 15 0% 0 0 0
psych-load (click) 339355 254799 68 457 1 0% 0 0 0
railsbench (click) 2639067 1926907 1436 9836 16 0% 0 0 0
binarytrees (click) 173915 130095 13 58 0 0% 0 0 0
chunky_png (click) 376923 281860 88 970 0 0% 0 0 0
discourse (click) 6015387 4461031 3269 26064 86 0% 2 0 0
erubi (click) 317147 240997 10 79 0 0% 0 0 0
erubi_rails (click) 1951579 1403996 300 2024 4 0% 0 0 0
fannkuchredux (click) 187931 140793 10 188 0 0% 0 0 0
lee (click) 378011 283277 58 622 0 0% 0 0 0
nbody (click) 183387 137296 12 158 0 0% 0 0 0
optcarrot (click) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 320475 252737 144 1562 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) 172443 128724 10 49 0 0% 0 0 0
fib (click) 169563 127471 10 38 0 0% 0 0 0
getivar (click) 172699 130843 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 173211 129317 10 64 0 0% 0 0 0
setivar (click) 171291 128506 10 38 0 0% 0 0 0
str_concat (click) 172571 129687 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.