YJIT Benchmarks

Details for Benchmarks at 2022-05-30 07:13:42

Overall YJIT is 31.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 25.5% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 139 75 139 20 139
mail 5 108 75 108 20 108
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 29 75 29 20 29
discourse 5 37 75 37 20 37
erubi 5 49 75 49 20 49
erubi_rails 5 788 75 788 20 788
fannkuchredux 5 15 53 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 5 443 75 443 20 443
fib 5 320 75 320 20 320
getivar 5 760 75 760 20 760
keyword_args 5 371 75 371 20 371
respond_to 5 104 75 104 20 104
setivar 5 1887 75 1887 20 1887
str_concat 5 198 75 198 20 198

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) 1016667 755704 131 1272 0 0% 0 0 0
hexapdf (click) 1120347 878720 682 7754 9 0% 0 0 0
liquid-render (click) 502939 385646 150 1515 2 0% 0 0 0
mail (click) 914203 659555 374 5545 15 0% 0 0 0
psych-load (click) 339419 254774 68 457 1 0% 0 0 0
railsbench (click) 2639771 1927749 1436 9855 16 0% 0 0 0
binarytrees (click) 174235 130473 13 58 0 0% 0 0 0
chunky_png (click) 384091 286184 88 1035 0 0% 0 0 0
discourse (click) 6008859 4456545 3270 26036 86 0% 2 0 0
erubi (click) 317147 241257 10 79 0 0% 0 0 0
erubi_rails (click) 1954203 1405888 300 2043 4 0% 0 0 0
fannkuchredux (click) 188251 141171 10 188 0 0% 0 0 0
lee (click) 377947 283277 58 622 0 0% 0 0 0
nbody (click) 182043 136435 12 158 0 0% 0 0 0
optcarrot (click) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 319387 251540 144 1539 1 0% 0 0 0
30k_ifelse (click) 5562971 4350419 9265 57804 0 0% 0 0 0
30k_methods (click) 2177947 1658746 5784 19361 0 0% 0 0 0
cfunc_itself (click) 172443 128724 10 49 0 0% 0 0 0
fib (click) 170971 128332 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) 174555 130178 10 64 0 0% 0 0 0
setivar (click) 171611 128884 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.