YJIT Benchmarks

Details for Benchmarks at 2022-04-04 07:14:28

Overall YJIT is 31.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.4% 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 5 183 75 183 20 183
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 62 75 62 20 62
chunky_png 5 30 75 30 20 30
discourse 5 39 75 39 20 39
erubi 5 46 75 46 20 46
erubi_rails 5 958 75 958 20 958
fannkuchredux 5 15 75 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 24 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 424 75 424 20 424
fib 5 320 75 320 20 320
getivar 5 789 75 789 20 789
keyword_args 5 376 75 376 20 376
respond_to 5 109 75 109 20 109
setivar 5 1817 75 1817 20 1817

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) 992529 813234 185 1185 0 0% 0 0 0
hexapdf (click) 1101393 924670 600 7905 430 5% 0 0 321
liquid-render (click) 501521 422644 143 1503 92 6% 0 0 5
mail (click) 844881 656072 324 4968 96 1% 0 0 111
psych-load (click) 342161 286988 59 439 1 0% 0 0 0
railsbench (click) 2593745 2101428 1297 9351 224 2% 0 0 26
binarytrees (click) 170193 139155 11 58 0 0% 0 0 0
chunky_png (click) 375185 308992 85 859 0 0% 0 0 0
discourse (click) 6249617 5614962 3127 26986 3259 12% 2 0 140
erubi (click) 329361 276774 10 79 0 0% 0 0 0
erubi_rails (click) 1955409 1596413 262 1867 12 0% 0 0 3
fannkuchredux (click) 184337 150231 8 188 0 0% 0 0 0
lee (click) 378513 315736 45 582 68 11% 0 0 13
nbody (click) 179473 146356 10 158 0 0% 0 0 0
optcarrot (click) 506577 452035 198 3575 20 0% 0 0 0
rubykon (click) 311313 259181 140 1529 1 0% 0 0 0
30k_ifelse (click) 5559633 4359857 9263 57804 0 0% 0 0 0
30k_methods (click) 2174801 1668319 5782 19361 0 0% 0 0 0
cfunc_itself (click) 169041 138162 8 49 0 0% 0 0 0
fib (click) 167633 137770 8 38 0 0% 0 0 0
getivar (click) 169361 140281 8 65 0 0% 0 0 0
keyword_args (click) 169937 138803 9 51 0 0% 0 0 0
respond_to (click) 171217 139543 8 64 0 0% 0 0 0
setivar (click) 169361 138732 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.