YJIT Benchmarks

Details for Benchmarks at 2022-09-11 20:11:57

Overall YJIT is 35.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.3% 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 5 161 75 161 20 161
mail 5 126 75 126 20 126
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 30 75 30 20 30
erubi 5 68 75 68 20 68
erubi_rails 5 1057 75 1057 20 1057
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 55 69 55 20 55
30k_methods 5 25 23 25 20 25
cfunc_itself 5 445 75 445 20 445
fib 5 318 75 318 20 318
getivar 5 467 75 467 20 467
keyword_args 5 380 75 380 20 380
respond_to 5 104 75 104 20 104
setivar 5 487 75 487 20 487
str_concat 5 454 75 454 20 454

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) 1077495 780894 131 1291 0 0% 0 0 0
hexapdf (click) 1185207 919727 682 8016 9 0% 0 0 0
liquid-render (click) 534263 401284 150 1683 2 0% 0 0 0
mail (click) 954487 663333 374 5561 17 0% 0 0 0
psych-load (click) 358519 262073 68 482 1 0% 0 0 0
railsbench (click) 2756535 1966740 1436 10056 16 0% 0 0 0
binarytrees (click) 176759 127226 13 58 0 0% 0 0 0
chunky_png (click) 400375 288775 88 1004 0 0% 0 0 0
erubi (click) 343095 251282 10 79 0 0% 0 0 0
erubi_rails (click) 2036407 1426832 300 1999 4 0% 0 0 0
fannkuchredux (click) 190775 137044 10 196 0 0% 0 0 0
lee (click) 398327 289338 58 634 0 0% 0 0 0
nbody (click) 187831 136236 12 171 0 0% 0 0 0
optcarrot (click) 532023 441298 207 3591 20 0% 0 0 0
rubykon (click) 329527 255094 144 1574 1 0% 0 0 0
30k_ifelse (click) 5663927 4347091 9265 57804 0 0% 0 0 0
30k_methods (click) 2209463 1656256 5784 19361 0 0% 0 0 0
cfunc_itself (click) 174007 125346 10 49 0 0% 0 0 0
fib (click) 173687 125707 10 38 0 0% 0 0 0
getivar (click) 175479 127794 10 65 0 0% 0 0 0
keyword_args (click) 176055 126740 11 51 0 0% 0 0 0
respond_to (click) 176823 127129 10 64 0 0% 0 0 0
setivar (click) 174135 125911 10 38 0 0% 0 0 0
str_concat (click) 174071 126243 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.