YJIT Benchmarks

Details for Benchmarks at 2022-09-03 05:21:54

Overall YJIT is 34.7% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.0% 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 MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 177 75 177 20 177
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 127 75 127 20 127
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 61 75 61 20 61
erubi_rails 5 1044 75 1044 20 1044
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 53 68 53 20 53
30k_methods 5 25 21 25 20 25
cfunc_itself 5 444 75 444 20 444
fib 5 309 75 309 20 309
getivar 5 615 75 615 20 615
keyword_args 5 380 75 380 20 380
respond_to 5 105 75 105 20 105
setivar 5 970 75 970 20 970
str_concat 5 477 75 477 20 477

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) 1075191 779970 131 1264 0 0% 0 0 0
hexapdf (click) 1191863 922068 682 8011 9 0% 0 0 0
liquid-render (click) 535223 401240 150 1662 2 0% 0 0 0
mail (click) 969591 673936 374 5702 17 0% 0 0 0
psych-load (click) 360375 263223 68 482 1 0% 0 0 0
railsbench (click) 2755639 1964562 1436 9990 16 0% 0 0 0
binarytrees (click) 177143 127751 13 58 0 0% 0 0 0
chunky_png (click) 403895 291287 88 1027 0 0% 0 0 0
erubi (click) 344439 252482 10 79 0 0% 0 0 0
erubi_rails (click) 2045623 1432077 300 2024 4 0% 0 0 0
fannkuchredux (click) 191287 137519 10 196 0 0% 0 0 0
lee (click) 401271 291675 58 634 0 0% 0 0 0
nbody (click) 186935 135468 12 171 0 0% 0 0 0
optcarrot (click) 536119 442347 207 3588 20 0% 0 0 0
rubykon (click) 331959 256117 144 1571 1 0% 0 0 0
30k_ifelse (click) 5705207 4347884 9265 57804 0 0% 0 0 0
30k_methods (click) 2209847 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175735 126524 10 49 0 0% 0 0 0
fib (click) 174071 126082 10 38 0 0% 0 0 0
getivar (click) 175863 128169 10 65 0 0% 0 0 0
keyword_args (click) 176375 127097 11 51 0 0% 0 0 0
respond_to (click) 178039 127978 10 64 0 0% 0 0 0
setivar (click) 175799 127039 10 38 0 0% 0 0 0
str_concat (click) 175735 127371 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.