YJIT Benchmarks

Details for Benchmarks at 2022-04-08 07:14:15

Overall YJIT is 30.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 26.5% 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 5 181 75 181 20 181
hexapdf 5 15 20 15
liquid-render 5 155 75 155 20 155
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 30 75 30 20 30
discourse 5 39 75 39 20 39
erubi 5 47 75 47 20 47
erubi_rails 5 968 75 968 20 968
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 450 75 450 20 450
fib 5 320 75 320 20 320
getivar 5 784 75 784 20 784
keyword_args 5 372 75 372 20 372
respond_to 5 111 75 111 20 111
setivar 5 1677 75 1677 20 1677

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) 991953 813056 185 1185 0 0% 0 0 0
hexapdf (click) 1099025 922907 599 7892 428 5% 0 0 321
liquid-render (click) 502609 424878 143 1537 92 5% 0 0 5
mail (click) 844369 655371 324 4961 96 1% 0 0 111
psych-load (click) 341329 286443 59 434 1 0% 0 0 0
railsbench (click) 2597073 2102387 1297 9388 224 2% 0 0 26
binarytrees (click) 168401 138123 11 58 0 0% 0 0 0
chunky_png (click) 375825 309512 85 864 0 0% 0 0 0
discourse (click) 6243921 5599815 3128 27022 3254 12% 2 0 140
erubi (click) 329169 276912 10 79 0 0% 0 0 0
erubi_rails (click) 1955665 1595243 262 1867 12 0% 0 0 3
fannkuchredux (click) 182161 148821 8 188 0 0% 0 0 0
lee (click) 379025 316065 45 582 68 11% 0 0 13
nbody (click) 176657 143436 10 159 0 0% 0 0 0
optcarrot (click) 504913 450954 198 3575 20 0% 0 0 0
rubykon (click) 308305 256442 140 1529 2 0% 0 0 0
30k_ifelse (click) 5556433 4356559 9263 57805 0 0% 0 0 0
30k_methods (click) 2171601 1665021 5782 19362 0 0% 0 0 0
cfunc_itself (click) 165841 134864 8 50 0 0% 0 0 0
fib (click) 165713 135175 8 39 0 0% 0 0 0
getivar (click) 166161 136983 8 66 0 0% 0 0 0
keyword_args (click) 167761 137393 9 51 0 0% 0 0 0
respond_to (click) 168145 136431 8 65 0 0% 0 0 0
setivar (click) 166161 135507 8 39 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.