YJIT Benchmarks

Details for Benchmarks at 2022-03-24 07:13:02

Overall YJIT is 31.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.6% 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.

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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 5 184 75 184 20 184
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
discourse 5 36 75 36 20 36
erubi 5 47 75 47 20 47
erubi_rails 5 996 75 996 20 996
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 283 75 283 20 283
optcarrot 5 15 75 15 20 15
rubykon 5 15 24 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 449 75 449 20 449
fib 5 320 75 320 20 320
getivar 5 770 75 770 20 770
keyword_args 5 378 75 378 20 378
respond_to 5 106 75 106 20 106
setivar 5 1896 75 1896 20 1896

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) 988561 758714 185 1199 0 0% 0 0 0
hexapdf (click) 1114193 912585 600 8169 614 7% 0 0 320
liquid-render (click) 488529 387857 143 1507 95 6% 0 0 1
mail (click) 848529 638354 324 5028 125 2% 0 0 39
psych-load (click) 330641 260957 59 434 1 0% 0 0 0
railsbench (click) 2534225 1931316 1297 9353 268 2% 0 0 26
binarytrees (click) 152785 117243 11 59 0 0% 0 0 0
chunky_png (click) 365457 284599 85 861 0 0% 0 0 0
discourse (click) 23300561 11640775 3133 294995 271467 92% 2 0 133
erubi (click) 322129 255098 10 79 0 0% 0 0 0
erubi_rails (click) 1908817 1437458 262 1901 18 0% 0 0 3
fannkuchredux (click) 166225 127367 8 189 0 0% 0 0 0
lee (click) 373841 294593 45 587 69 11% 0 0 12
nbody (click) 161745 123870 10 159 0 0% 0 0 0
optcarrot (click) 489361 430074 198 3576 20 0% 0 0 0
rubykon (click) 293777 237297 140 1531 1 0% 0 0 0
30k_ifelse (click) 5541841 4337567 9263 57805 0 0% 0 0 0
30k_methods (click) 2157521 1646358 5782 19362 0 0% 0 0 0
cfunc_itself (click) 151249 115872 8 50 0 0% 0 0 0
fib (click) 150353 115809 8 39 0 0% 0 0 0
getivar (click) 151569 117991 8 66 0 0% 0 0 0
keyword_args (click) 152273 116626 9 52 0 0% 0 0 0
respond_to (click) 153937 117655 8 65 0 0% 0 0 0
setivar (click) 151569 116515 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.