YJIT Benchmarks

Details for Benchmarks at 2022-09-09 20:11:50

Overall YJIT is 34.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.6% 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 5 162 75 162 20 162
mail 5 129 75 129 20 129
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 67 75 67 20 67
erubi_rails 5 1026 75 1026 20 1026
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 33 15 20 15
30k_ifelse 5 54 70 54 20 54
30k_methods 5 25 22 25 20 25
cfunc_itself 5 414 75 414 20 414
fib 5 309 75 309 20 309
getivar 5 440 75 440 20 440
keyword_args 5 383 75 383 20 383
respond_to 5 104 75 104 20 104
setivar 5 462 75 462 20 462
str_concat 5 460 75 460 20 460

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) 1077879 781511 131 1273 0 0% 0 0 0
hexapdf (click) 1194295 923868 683 8021 9 0% 0 0 0
liquid-render (click) 533047 400121 150 1641 2 0% 0 0 0
mail (click) 941047 656160 374 5396 17 0% 0 0 0
psych-load (click) 358135 261777 68 482 1 0% 0 0 0
railsbench (click) 2764855 1971197 1436 10044 16 0% 0 0 0
binarytrees (click) 176375 127327 13 58 0 0% 0 0 0
chunky_png (click) 407671 293305 88 1065 0 0% 0 0 0
erubi (click) 344951 252811 10 79 0 0% 0 0 0
erubi_rails (click) 2046135 1432496 300 2016 4 0% 0 0 0
fannkuchredux (click) 190519 137145 10 196 0 0% 0 0 0
lee (click) 399863 290588 58 634 0 0% 0 0 0
nbody (click) 188471 136946 12 171 0 0% 0 0 0
optcarrot (click) 535351 441973 207 3588 20 0% 0 0 0
rubykon (click) 331255 256169 144 1578 1 0% 0 0 0
30k_ifelse (click) 5703991 4347516 9265 57804 0 0% 0 0 0
30k_methods (click) 2208567 1655978 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175735 126474 10 49 0 0% 0 0 0
fib (click) 174071 126082 10 38 0 0% 0 0 0
getivar (click) 175863 128219 10 65 0 0% 0 0 0
keyword_args (click) 175479 126790 11 51 0 0% 0 0 0
respond_to (click) 178039 127928 10 64 0 0% 0 0 0
setivar (click) 174839 126664 10 38 0 0% 0 0 0
str_concat (click) 174455 126618 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.