YJIT Benchmarks

Details for Benchmarks at 2022-08-21 05:14:31

Overall YJIT is 35.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.0% 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 5 158 75 158 20 158
mail 5 128 75 128 20 128
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 62 75 62 20 62
erubi_rails 5 1026 75 1026 20 1026
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 260 75 260 20 260
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 23 30 23 20 23
cfunc_itself 5 423 75 423 20 423
fib 5 315 75 315 20 315
getivar 5 631 75 631 20 631
keyword_args 5 365 75 365 20 365
respond_to 5 101 75 101 20 101
setivar 5 943 75 943 20 943
str_concat 5 472 75 472 20 472

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) 1036827 780109 131 1276 0 0% 0 0 0
hexapdf (click) 1151259 924837 683 8026 9 0% 0 0 0
liquid-render (click) 515803 401737 150 1690 2 0% 0 0 0
mail (click) 925275 666599 374 5587 17 0% 0 0 0
psych-load (click) 346843 263022 68 482 1 0% 0 0 0
railsbench (click) 2660187 1969723 1436 10062 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 390875 292221 88 1037 0 0% 0 0 0
erubi (click) 331419 252407 10 79 0 0% 0 0 0
erubi_rails (click) 1958491 1426465 300 1996 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 385051 290541 58 632 0 0% 0 0 0
nbody (click) 181595 136896 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 320219 256112 144 1570 1 0% 0 0 0
30k_ifelse (click) 5560155 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 167963 126082 10 38 0 0% 0 0 0
getivar (click) 169819 128219 10 65 0 0% 0 0 0
keyword_args (click) 170331 127115 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) 169755 127371 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.