YJIT Benchmarks

Details for Benchmarks at 2022-04-06 07:14:04

Overall YJIT is 31.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.1% 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 5 180 75 180 20 180
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 122 75 122 20 122
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
discourse 5 40 75 40 20 40
erubi 5 45 75 45 20 45
erubi_rails 5 976 75 976 20 976
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 452 75 452 20 452
fib 5 320 75 320 20 320
getivar 5 792 75 792 20 792
keyword_args 5 378 75 378 20 378
respond_to 5 110 75 110 20 110
setivar 5 1821 75 1821 20 1821

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) 992145 813427 185 1185 0 0% 0 0 0
hexapdf (click) 1098193 921853 599 7886 429 5% 0 0 321
liquid-render (click) 505361 426818 143 1560 92 5% 0 0 5
mail (click) 845713 656574 324 4977 96 1% 0 0 111
psych-load (click) 338641 283103 59 434 1 0% 0 0 0
railsbench (click) 2597137 2103009 1297 9376 224 2% 0 0 26
binarytrees (click) 168209 137701 11 59 0 0% 0 0 0
chunky_png (click) 374801 308800 85 857 0 0% 0 0 0
discourse (click) 6306321 5654975 3177 27475 3224 11% 2 0 140
erubi (click) 329169 276912 10 79 0 0% 0 0 0
erubi_rails (click) 1956369 1596978 262 1886 12 0% 0 0 3
fannkuchredux (click) 182481 148728 8 189 0 0% 0 0 0
lee (click) 378833 315947 45 582 68 11% 0 0 13
nbody (click) 177681 145324 10 158 0 0% 0 0 0
optcarrot (click) 504913 450954 198 3575 20 0% 0 0 0
rubykon (click) 308561 257525 140 1517 2 0% 0 0 0
30k_ifelse (click) 5557457 4358447 9263 57804 0 0% 0 0 0
30k_methods (click) 2173905 1667612 5782 19361 0 0% 0 0 0
cfunc_itself (click) 166865 136752 8 49 0 0% 0 0 0
fib (click) 165457 136360 8 38 0 0% 0 0 0
getivar (click) 168465 139574 8 65 0 0% 0 0 0
keyword_args (click) 168017 136208 9 52 0 0% 0 0 0
respond_to (click) 169041 138206 8 64 0 0% 0 0 0
setivar (click) 167185 137395 8 38 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.