YJIT Benchmarks

Details for Benchmarks at 2022-02-05 07:11:32

Overall YJIT is 31.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 30.9% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 176 20 176 75 176 20 176
hexapdf 5 15 20 15 20 15
liquid-render 5 154 20 154 75 154 20 154
mail 5 121 20 121 75 121 20 121
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 75 20 75 75 75 20 75
discourse 5 34 20 34 75 34 20 34
erubi 5 48 20 48 75 48 20 48
erubi_rails 5 966 20 966 75 966 20 966
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 21 20 21 75 21 20 21
nbody 5 283 20 283 75 283 20 283
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 37 15 20 15
30k_ifelse 5 56 20 56 75 56 20 56
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 440 20 440 75 440 20 440
fib 5 318 20 318 75 318 20 318
getivar 5 772 20 772 75 772 20 772
keyword_args 5 379 20 379 75 379 20 379
respond_to 5 108 20 108 75 108 20 108
setivar 5 1663 20 1663 75 1663 20 1663

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) 999121 766536 185 1199 0 0% 0 0 0
hexapdf (click) 1118289 916184 599 8163 615 7% 0 0 321
liquid-render (click) 494737 393749 143 1568 95 6% 0 0 1
mail (click) 881361 661133 324 5310 125 2% 0 0 39
psych-load (click) 337233 267066 59 434 1 0% 0 0 0
railsbench (click) 2534033 1932196 1297 9313 268 2% 0 0 26
binarytrees (click) 151697 116253 11 59 0 0% 0 0 0
discourse (click) 22649489 11359739 3093 284922 261776 91% 2 0 133
erubi (click) 330449 261910 10 79 0 0% 0 0 0
erubi_rails (click) 1909713 1438662 262 1878 18 0% 0 0 3
fannkuchredux (click) 165521 126976 8 189 0 0% 0 0 0
lee (click) 377105 297376 45 587 69 11% 0 0 12
nbody (click) 161041 123479 10 159 0 0% 0 0 0
optcarrot (click) 488273 429109 198 3576 20 0% 0 0 0
rubykon (click) 293457 237084 141 1538 1 0% 0 0 0
30k_ifelse (click) 5540817 4336602 9263 57805 0 0% 0 0 0
30k_methods (click) 2155985 1645064 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150225 114907 8 50 0 0% 0 0 0
fib (click) 148817 114515 8 39 0 0% 0 0 0
getivar (click) 150545 117026 8 66 0 0% 0 0 0
keyword_args (click) 150609 115219 9 52 0 0% 0 0 0
respond_to (click) 151889 116032 8 65 0 0% 0 0 0
setivar (click) 150033 115221 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.