YJIT Benchmarks

Details for Benchmarks at 2022-01-06 07:10:16

Overall YJIT is 31.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.6% 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.

Want Raw Graphs and CSV?

Benchmarks Speed Details

Benchmark Memory Usage Details

Number of Iterations and Warmups Tested

bench No JIT warmups No JIT iters MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 185 20 185 75 185 20 185
hexapdf 5 15 20 15 20 15
liquid-render 5 161 20 161 75 161 20 161
mail 5 139 20 139 75 139 20 139
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 85 20 85 75 85 20 85
erubi 5 53 20 53 75 53 20 53
erubi_rails 5 1007 20 1007 75 1007 20 1007
fannkuchredux 5 15 20 15 55 15 20 15
lee 5 26 20 26 75 26 20 26
nbody 5 343 20 343 75 343 20 343
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 44 15 20 15
30k_ifelse 5 65 20 65 75 65 20 65
30k_methods 5 26 20 26 42 26 20 26
cfunc_itself 5 487 20 487 75 487 20 487
fib 5 384 20 384 75 384 20 384
getivar 5 563 20 563 75 563 20 563
keyword_args 5 438 20 438 75 438 20 438
respond_to 5 122 20 122 75 122 20 122
setivar 5 511 20 511 75 511 20 511

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) 970154 739075 184 1193 0 0% 0 0 0
hexapdf (click) 1116522 910554 598 8107 618 7% 0 0 321
liquid-render (click) 466807 368072 143 1432 95 6% 0 0 1
mail (click) 864490 639610 325 5442 124 2% 0 0 39
psych-load (click) 301418 235067 58 428 1 0% 0 0 0
railsbench (click) 2513762 1898675 1295 9283 266 2% 0 0 26
binarytrees (click) 112549 85965 9 48 0 0% 0 0 0
erubi (click) 272289 212860 8 35 0 0% 0 0 0
erubi_rails (click) 1897634 1418535 260 1947 16 0% 0 0 3
fannkuchredux (click) 128549 97975 6 202 0 0% 0 0 0
lee (click) 330474 259114 44 562 71 12% 0 0 12
nbody (click) 121957 93166 8 148 0 0% 0 0 0
optcarrot (click) 451173 398978 196 3566 20 0% 0 0 0
rubykon (click) 256421 207815 138 1551 2 0% 0 0 0
30k_ifelse (click) 5502181 4306618 9261 57794 0 0% 0 0 0
30k_methods (click) 2116837 1614751 5780 19351 0 0% 0 0 0
cfunc_itself (click) 111141 84594 6 39 0 0% 0 0 0
fib (click) 110117 84531 6 28 0 0% 0 0 0
getivar (click) 111333 86713 6 55 0 0% 0 0 0
keyword_args (click) 112485 85564 7 41 0 0% 0 0 0
respond_to (click) 113253 86048 6 54 0 0% 0 0 0
setivar (click) 111269 85237 6 28 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.