YJIT Benchmarks

Details for Benchmarks at 2022-08-23 20:14:06

Overall YJIT is 36.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.7% 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 5 160 75 160 20 160
mail 5 126 75 126 20 126
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 30 75 30 20 30
erubi 5 60 75 60 20 60
erubi_rails 5 1019 75 1019 20 1019
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 55 67 55 20 55
30k_methods 5 22 22 22 20 22
cfunc_itself 5 431 75 431 20 431
fib 5 311 75 311 20 311
getivar 5 614 75 614 20 614
keyword_args 5 363 75 363 20 363
respond_to 5 103 75 103 20 103
setivar 5 979 75 979 20 979
str_concat 5 428 75 428 20 428

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) 1035867 779528 131 1278 0 0% 0 0 0
hexapdf (click) 1151003 924621 683 8020 9 0% 0 0 0
liquid-render (click) 516827 401586 150 1669 2 0% 0 0 0
mail (click) 926235 667372 374 5595 17 0% 0 0 0
psych-load (click) 346907 263030 68 480 1 0% 0 0 0
railsbench (click) 2650331 1963044 1436 9979 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 392411 293377 88 1043 0 0% 0 0 0
erubi (click) 331419 252432 10 79 0 0% 0 0 0
erubi_rails (click) 1961819 1429310 300 2029 4 0% 0 0 0
fannkuchredux (click) 184795 137234 10 196 0 0% 0 0 0
lee (click) 385115 290541 58 632 0 0% 0 0 0
nbody (click) 181851 137274 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320283 256430 144 1572 2 0% 0 0 0
30k_ifelse (click) 5560155 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2175579 1657059 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 168347 126510 10 38 0 0% 0 0 0
getivar (click) 169819 128219 10 65 0 0% 0 0 0
keyword_args (click) 170459 127165 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 169755 127039 10 38 0 0% 0 0 0
str_concat (click) 170011 127749 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.