YJIT Benchmarks

Details for Benchmarks at 2022-08-06 05:13:41

Overall YJIT is 34.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.0% 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.

Want Raw Graphs and CSV?

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 5 193 75 193 20 193
hexapdf 5 15 20 15
liquid-render 5 158 75 158 20 158
mail 5 130 75 130 20 130
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 65 75 65 20 65
chunky_png 5 30 75 30 20 30
erubi 5 62 75 62 20 62
erubi_rails 5 1028 75 1028 20 1028
fannkuchredux 5 15 75 15 20 15
lee 5 21 75 21 20 21
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 23 30 23 20 23
cfunc_itself 5 442 75 442 20 442
fib 5 315 75 315 20 315
getivar 5 613 75 613 20 613
keyword_args 5 381 75 381 20 381
respond_to 5 107 75 107 20 107
setivar 5 956 75 956 20 956
str_concat 5 462 75 462 20 462

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) 1034843 778538 131 1279 0 0% 0 0 0
hexapdf (click) 1149339 923452 682 8015 10 0% 0 0 0
liquid-render (click) 519963 403882 150 1676 2 0% 0 0 0
mail (click) 929051 669148 374 5616 17 0% 0 0 0
psych-load (click) 346459 262673 68 480 1 0% 0 0 0
railsbench (click) 2662235 1971294 1436 10078 16 0% 0 0 0
binarytrees (click) 171931 128248 13 58 0 0% 0 0 0
chunky_png (click) 384923 287966 88 989 0 0% 0 0 0
erubi (click) 322907 245939 10 79 0 0% 0 0 0
erubi_rails (click) 1961371 1428846 300 2025 4 0% 0 0 0
fannkuchredux (click) 185307 138082 10 188 0 0% 0 0 0
lee (click) 385179 290709 58 632 0 0% 0 0 0
nbody (click) 182555 137443 12 171 0 0% 0 0 0
optcarrot (click) 513499 442314 207 3588 20 0% 0 0 0
rubykon (click) 321691 257398 144 1577 1 0% 0 0 0
30k_ifelse (click) 5560987 4348716 9265 57804 0 0% 0 0 0
30k_methods (click) 2175707 1656882 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170459 127021 10 49 0 0% 0 0 0
fib (click) 168923 126629 10 38 0 0% 0 0 0
getivar (click) 170651 128716 10 65 0 0% 0 0 0
keyword_args (click) 171291 127662 11 51 0 0% 0 0 0
respond_to (click) 172571 128475 10 64 0 0% 0 0 0
setivar (click) 170139 127240 10 38 0 0% 0 0 0
str_concat (click) 170139 127572 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.