YJIT Benchmarks

Details for Benchmarks at 2022-11-19 20:10:10

Overall YJIT is 32.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.2% 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 YJIT warmups YJIT iters
activerecord 5 207 5 207
hexapdf 5 15 5 15
liquid-render 5 176 5 176
mail 5 123 5 123
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 243 5 243
binarytrees 5 85 5 85
chunky_png 5 32 5 32
erubi 5 67 5 67
erubi_rails 5 1110 5 1110
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 22 5 22
nbody 5 233 5 233
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 494 5 494
fib 5 327 5 327
getivar 5 427 5 427
keyword_args 5 385 5 385
respond_to 5 702 5 702
setivar 5 362 5 362
str_concat 5 443 5 443

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) 2302414 2301579 25 367 6 1% 0 0 0
hexapdf (click) 1770879 1770135 819 10291 218 2% 0 0 0
liquid-render (click) 589909 589671 156 1844 34 1% 0 0 0
mail (click) 1328691 1328008 373 5155 176 3% 0 0 0
psych-load (click) 800804 798960 70 638 19 2% 0 0 0
railsbench (click) 5611629 5610728 1779 13926 484 3% 0 0 0
ruby-lsp (click) 5425672 5423734 6425 40580 1520 3% 12404 0 0
binarytrees (click) 134623 133361 16 139 4 2% 0 0 0
chunky_png (click) 821036 820333 89 1175 31 2% 0 0 0
erubi (click) 741655 740310 13 147 4 2% 0 0 0
erubi_rails (click) 4732232 4731990 329 2686 111 4% 0 0 0
etanni (click) 135393 133981 13 107 4 3% 0 0 0
fannkuchredux (click) 146649 144465 13 269 4 1% 0 0 0
lee (click) 822463 821339 79 804 25 3% 0 0 0
nbody (click) 140895 140375 15 248 6 2% 0 0 0
optcarrot (click) 556602 554056 203 4133 93 2% 0 0 0
rubykon (click) 279706 279248 145 1643 32 1% 0 0 0
30k_ifelse (click) 5403089 5402946 9268 57196 4 0% 0 0 0
30k_methods (click) 2094588 2092547 5787 19425 4 0% 0 0 0
cfunc_itself (click) 132545 132096 13 122 4 3% 0 0 0
fib (click) 131088 131044 13 111 4 3% 0 0 0
getivar (click) 132937 132287 13 138 4 2% 0 0 0
keyword_args (click) 133344 132513 14 124 4 3% 0 0 0
respond_to (click) 133068 132355 13 138 5 3% 0 0 0
setivar (click) 125898 124731 13 111 4 3% 0 0 0
str_concat (click) 132771 132287 15 137 6 4% 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.


Far Too Many Details

These are links to HTML reports on GitHub with far, far too much detail about the benchmarking runs per-platform.


Autogenerated by continuous_reporting/generate_and_upload_reports.rb script.