YJIT Benchmarks

Details for Benchmarks at 2022-02-22 07:12:05

Overall YJIT is 31.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.0% 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 5 174 20 174 75 174 20 174
hexapdf 5 15 20 15 20 15
liquid-render 5 150 20 150 75 150 20 150
mail 5 122 20 122 75 122 20 122
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 5 943 20 943 75 943 20 943
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 21 20 21 75 21 20 21
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 37 15 20 15
30k_ifelse 5 55 20 55 75 55 20 55
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 449 20 449 75 449 20 449
fib 5 320 20 320 75 320 20 320
getivar 5 771 20 771 75 771 20 771
keyword_args 5 368 20 368 75 368 20 368
respond_to 5 110 20 110 75 110 20 110
setivar 5 1775 20 1775 75 1775 20 1775

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) 993873 761921 185 1199 0 0% 0 0 0
hexapdf (click) 1117457 915751 599 8164 612 7% 0 0 320
liquid-render (click) 489233 389620 143 1508 95 6% 0 0 1
mail (click) 901841 675702 324 5518 125 2% 0 0 39
psych-load (click) 334673 264835 59 434 1 0% 0 0 0
railsbench (click) 2531601 1930307 1297 9303 268 2% 0 0 26
binarytrees (click) 150801 115689 11 59 0 0% 0 0 0
discourse (click) 22702225 11401505 3135 285416 261934 91% 2 0 133
erubi (click) 326225 258519 10 79 0 0% 0 0 0
erubi_rails (click) 1910929 1439212 262 1879 18 0% 0 0 3
fannkuchredux (click) 164561 126387 8 189 0 0% 0 0 0
lee (click) 376657 297116 45 587 69 11% 0 0 12
nbody (click) 160401 123268 10 159 0 0% 0 0 0
optcarrot (click) 487825 428849 198 3576 20 0% 0 0 0
rubykon (click) 292753 236614 140 1538 1 0% 0 0 0
30k_ifelse (click) 5539985 4336126 9263 57805 0 0% 0 0 0
30k_methods (click) 2155345 1644853 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149777 114647 8 50 0 0% 0 0 0
fib (click) 147985 114039 8 39 0 0% 0 0 0
getivar (click) 149585 116437 8 66 0 0% 0 0 0
keyword_args (click) 150289 115072 9 52 0 0% 0 0 0
respond_to (click) 151441 115772 8 65 0 0% 0 0 0
setivar (click) 149585 114961 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.