YJIT Benchmarks

Details for Benchmarks at 2022-05-31 07:13:12

Overall YJIT is 28.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 27.1% 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 5 191 75 191 20 191
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 38 75 38 20 38
erubi 5 49 75 49 20 49
erubi_rails 5 788 75 788 20 788
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 5 430 75 430 20 430
fib 5 320 75 320 20 320
getivar 5 759 75 759 20 759
keyword_args 5 376 75 376 20 376
respond_to 5 111 75 111 20 111
setivar 5 1852 75 1852 20 1852
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 755261 131 1262 0 0% 0 0 0
hexapdf (click) 1121371 879381 683 7769 9 0% 0 0 0
liquid-render (click) 507931 390119 150 1580 2 0% 0 0 0
mail (click) 897563 648587 374 5386 15 0% 0 0 0
psych-load (click) 339739 255102 68 457 1 0% 0 0 0
railsbench (click) 2636187 1925776 1436 9813 16 0% 0 0 0
binarytrees (click) 174171 130473 13 58 0 0% 0 0 0
chunky_png (click) 383451 285909 88 1031 0 0% 0 0 0
discourse (click) 5946203 4409490 3196 25440 84 0% 2 0 0
erubi (click) 316763 240879 10 79 0 0% 0 0 0
erubi_rails (click) 1950171 1402909 300 1993 4 0% 0 0 0
fannkuchredux (click) 187867 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) 514587 442545 207 3571 20 0% 0 0 0
rubykon (click) 320219 252414 144 1543 1 0% 0 0 0
30k_ifelse (click) 5563291 4350797 9265 57804 0 0% 0 0 0
30k_methods (click) 2178075 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) 173019 131221 10 65 0 0% 0 0 0
keyword_args (click) 173275 129365 11 51 0 0% 0 0 0
respond_to (click) 174491 130178 10 64 0 0% 0 0 0
setivar (click) 172571 129367 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.