YJIT Benchmarks

Details for Benchmarks at 2022-01-09 07:11:39

Overall YJIT is 30.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.7% 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 5 189 20 189 75 189 20 189
hexapdf 5 15 20 15 20 15
liquid-render 5 156 20 156 75 156 20 156
mail 5 137 20 137 75 137 20 137
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 85 20 85 75 85 20 85
erubi 5 52 20 52 75 52 20 52
erubi_rails 5 965 20 965 75 965 20 965
fannkuchredux 5 15 20 15 54 15 20 15
lee 5 26 20 26 75 26 20 26
nbody 5 344 20 344 75 344 20 344
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 43 15 20 15
30k_ifelse 5 62 20 62 75 62 20 62
30k_methods 5 27 20 27 44 27 20 27
cfunc_itself 5 494 20 494 75 494 20 494
fib 5 383 20 383 75 383 20 383
getivar 5 563 20 563 75 563 20 563
keyword_args 5 437 20 437 75 437 20 437
respond_to 5 123 20 123 75 123 20 123
setivar 5 481 20 481 75 481 20 481

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) 967953 741144 185 1198 0 0% 0 0 0
hexapdf (click) 1111185 912098 599 8095 614 7% 0 0 321
liquid-render (click) 469585 372792 144 1461 95 6% 0 0 1
mail (click) 858321 639654 326 5424 124 2% 0 0 39
psych-load (click) 302865 237215 59 433 1 0% 0 0 0
railsbench (click) 2512145 1910943 1296 9329 266 2% 0 0 26
binarytrees (click) 114257 87406 10 54 0 0% 0 0 0
erubi (click) 292369 231511 9 73 0 0% 0 0 0
erubi_rails (click) 1893457 1424639 261 1979 16 0% 0 0 3
fannkuchredux (click) 127505 97775 7 184 0 0% 0 0 0
lee (click) 333137 262727 45 588 72 12% 0 0 12
nbody (click) 123025 94278 9 154 0 0% 0 0 0
optcarrot (click) 450257 399908 197 3571 20 0% 0 0 0
rubykon (click) 255377 207583 139 1528 1 0% 0 0 0
30k_ifelse (click) 5502801 4307401 9262 57800 0 0% 0 0 0
30k_methods (click) 2117969 1615863 5781 19357 0 0% 0 0 0
cfunc_itself (click) 112209 85706 7 45 0 0% 0 0 0
fib (click) 110801 85314 7 34 0 0% 0 0 0
getivar (click) 112529 87825 7 61 0 0% 0 0 0
keyword_args (click) 113105 86347 8 47 0 0% 0 0 0
respond_to (click) 114513 87273 7 60 0 0% 0 0 0
setivar (click) 113041 86678 7 34 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.