YJIT Benchmarks

Details for Benchmarks at 2022-05-27 07:13:11

Overall YJIT is 31.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 25.7% 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 5 139 75 139 20 139
mail 5 101 75 101 20 101
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 29 75 29 20 29
discourse 5 38 75 38 20 38
erubi 5 50 75 50 20 50
erubi_rails 5 805 75 805 20 805
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 275 75 275 20 275
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 5 446 75 446 20 446
fib 5 320 75 320 20 320
getivar 5 760 75 760 20 760
keyword_args 5 376 75 376 20 376
respond_to 5 105 75 105 20 105
setivar 5 1851 75 1851 20 1851
str_concat 5 201 75 201 20 201

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) 1017307 756359 131 1257 0 0% 0 0 0
hexapdf (click) 1120283 879218 682 7746 9 0% 0 0 0
liquid-render (click) 501595 384924 150 1518 2 0% 0 0 0
mail (click) 889371 642625 374 5302 15 0% 0 0 0
psych-load (click) 339419 254774 68 457 1 0% 0 0 0
railsbench (click) 2639131 1927808 1436 9849 16 0% 0 0 0
binarytrees (click) 172571 129234 13 58 0 0% 0 0 0
chunky_png (click) 383131 285473 88 1026 0 0% 0 0 0
discourse (click) 5939867 4406298 3196 25418 84 0% 2 0 0
erubi (click) 314715 239196 10 79 0 0% 0 0 0
erubi_rails (click) 1952219 1404257 300 2021 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) 319387 251427 144 1537 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) 172763 129102 10 49 0 0% 0 0 0
fib (click) 170907 128332 10 38 0 0% 0 0 0
getivar (click) 171355 129982 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 172635 129367 10 38 0 0% 0 0 0
str_concat (click) 172635 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.