YJIT Benchmarks

Details for Benchmarks at 2022-09-04 05:24:00

Overall YJIT is 35.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 33.0% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 128 75 128 20 128
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 1042 75 1042 20 1042
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 36 15 20 15
30k_ifelse 5 54 67 54 20 54
30k_methods 5 25 22 25 20 25
cfunc_itself 5 443 75 443 20 443
fib 5 309 75 309 20 309
getivar 5 613 75 613 20 613
keyword_args 5 381 75 381 20 381
respond_to 5 100 75 100 20 100
setivar 5 968 75 968 20 968
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) 1075319 780129 131 1269 0 0% 0 0 0
hexapdf (click) 1192823 922212 683 8018 10 0% 0 0 0
liquid-render (click) 535991 402480 150 1676 2 0% 0 0 0
mail (click) 979767 680554 374 5800 17 0% 0 0 0
psych-load (click) 359991 263055 68 480 1 0% 0 0 0
railsbench (click) 2763447 1969256 1436 10038 16 0% 0 0 0
binarytrees (click) 177143 127751 13 58 0 0% 0 0 0
chunky_png (click) 397175 286894 88 970 0 0% 0 0 0
erubi (click) 343287 251661 10 79 0 0% 0 0 0
erubi_rails (click) 2048055 1433559 300 2028 4 0% 0 0 0
fannkuchredux (click) 191287 137519 10 196 0 0% 0 0 0
lee (click) 399799 290563 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) 332727 256729 144 1578 1 0% 0 0 0
30k_ifelse (click) 5705271 4348219 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 126132 10 38 0 0% 0 0 0
getivar (click) 175863 128219 10 65 0 0% 0 0 0
keyword_args (click) 176439 127115 11 51 0 0% 0 0 0
respond_to (click) 177975 127860 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.