YJIT Benchmarks

Details for Benchmarks at 2022-08-25 05:37:10

Overall YJIT is 34.3% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.0% 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 5 190 75 190 20 190
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 54 75 54 20 54
chunky_png 5 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1019 75 1019 20 1019
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 55 68 55 20 55
30k_methods 5 22 22 22 20 22
cfunc_itself 5 433 75 433 20 433
fib 5 315 75 315 20 315
getivar 5 614 75 614 20 614
keyword_args 5 364 75 364 20 364
respond_to 5 106 75 106 20 106
setivar 5 980 75 980 20 980
str_concat 5 434 75 434 20 434

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) 1037595 780649 131 1276 0 0% 0 0 0
hexapdf (click) 1151771 925068 683 8030 10 0% 0 0 0
liquid-render (click) 520859 405153 150 1706 2 0% 0 0 0
mail (click) 918363 661339 374 5525 17 0% 0 0 0
psych-load (click) 346139 262505 68 482 1 0% 0 0 0
railsbench (click) 2662427 1971526 1436 10074 16 0% 0 0 0
binarytrees (click) 171099 127751 13 58 0 0% 0 0 0
chunky_png (click) 388763 291048 88 1008 0 0% 0 0 0
erubi (click) 331419 252457 10 79 0 0% 0 0 0
erubi_rails (click) 1963739 1430877 300 2034 4 0% 0 0 0
fannkuchredux (click) 185051 137519 10 196 0 0% 0 0 0
lee (click) 386203 291653 58 632 0 0% 0 0 0
nbody (click) 181979 137324 12 171 0 0% 0 0 0
optcarrot (click) 513115 442113 207 3588 20 0% 0 0 0
rubykon (click) 321243 256978 144 1581 1 0% 0 0 0
30k_ifelse (click) 5560411 4348597 9265 57804 0 0% 0 0 0
30k_methods (click) 2175323 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 169627 126524 10 49 0 0% 0 0 0
fib (click) 168091 126132 10 38 0 0% 0 0 0
getivar (click) 169819 128219 10 65 0 0% 0 0 0
keyword_args (click) 170331 127115 11 51 0 0% 0 0 0
respond_to (click) 171739 127978 10 64 0 0% 0 0 0
setivar (click) 169755 127039 10 38 0 0% 0 0 0
str_concat (click) 169755 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.