YJIT Benchmarks

Details for Benchmarks at 2022-08-11 05:14:55

Overall YJIT is 35.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.6% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 129 75 129 20 129
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 30 75 30 20 30
erubi 5 62 75 62 20 62
erubi_rails 5 1030 75 1030 20 1030
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 263 75 263 20 263
optcarrot 5 15 75 15 20 15
rubykon 5 15 35 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 30 22 20 22
cfunc_itself 5 429 75 429 20 429
fib 5 315 75 315 20 315
getivar 5 615 75 615 20 615
keyword_args 5 364 75 364 20 364
respond_to 5 110 75 110 20 110
setivar 5 988 75 988 20 988
str_concat 5 437 75 437 20 437

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) 1034971 778922 131 1267 0 0% 0 0 0
hexapdf (click) 1150427 924458 683 8016 9 0% 0 0 0
liquid-render (click) 519195 403705 150 1673 2 0% 0 0 0
mail (click) 931099 669846 374 5619 17 0% 0 0 0
psych-load (click) 347355 263483 68 480 1 0% 0 0 0
railsbench (click) 2655963 1967118 1436 10018 16 0% 0 0 0
binarytrees (click) 171995 128341 13 58 0 0% 0 0 0
chunky_png (click) 386011 289101 88 999 0 0% 0 0 0
erubi (click) 323099 246292 10 79 0 0% 0 0 0
erubi_rails (click) 1962459 1429596 300 2031 4 0% 0 0 0
fannkuchredux (click) 186139 138394 10 196 0 0% 0 0 0
lee (click) 384091 290035 58 632 0 0% 0 0 0
nbody (click) 182811 137821 12 171 0 0% 0 0 0
optcarrot (click) 514203 442988 207 3588 20 0% 0 0 0
rubykon (click) 321819 257847 144 1578 1 0% 0 0 0
30k_ifelse (click) 5561243 4349094 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657556 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127399 10 49 0 0% 0 0 0
fib (click) 169179 127007 10 38 0 0% 0 0 0
getivar (click) 170907 129094 10 65 0 0% 0 0 0
keyword_args (click) 171547 128040 11 51 0 0% 0 0 0
respond_to (click) 172827 128853 10 64 0 0% 0 0 0
setivar (click) 170843 127914 10 38 0 0% 0 0 0
str_concat (click) 170843 128246 12 62 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.