YJIT Benchmarks

Details for Benchmarks at 2022-05-21 19:12:57

Overall YJIT is 31.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.3% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 139 75 139 20 139
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 38 75 38 20 38
erubi 5 50 75 50 20 50
erubi_rails 5 801 75 801 20 801
fannkuchredux 5 15 74 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 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 444 75 444 20 444
fib 5 320 75 320 20 320
getivar 5 761 75 761 20 761
keyword_args 5 371 75 371 20 371
respond_to 5 106 75 106 20 106
setivar 5 1866 75 1866 20 1866
str_concat 5 193 75 193 20 193

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) 1015067 754359 131 1266 0 0% 0 0 0
hexapdf (click) 1120283 878588 683 7755 9 0% 0 0 0
liquid-render (click) 505115 387276 150 1554 2 0% 0 0 0
mail (click) 913051 659482 374 5549 15 0% 0 0 0
psych-load (click) 339419 254774 68 457 1 0% 0 0 0
railsbench (click) 2639771 1928124 1436 9863 16 0% 0 0 0
binarytrees (click) 173915 130095 13 58 0 0% 0 0 0
chunky_png (click) 379419 283290 88 987 0 0% 0 0 0
discourse (click) 5957083 4416128 3199 25558 84 0% 2 0 0
erubi (click) 317147 240997 10 79 0 0% 0 0 0
erubi_rails (click) 1947291 1400532 300 1981 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) 319835 252022 144 1543 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) 170907 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) 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.