YJIT Benchmarks

Details for Benchmarks at 2022-07-28 20:14:32

Overall YJIT is 36.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 36.4% 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 5 146 75 146 20 146
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 31 75 31 20 31
erubi 5 63 75 63 20 63
erubi_rails 5 1036 75 1036 20 1036
fannkuchredux 5 15 74 15 20 15
lee 5 21 75 21 20 21
nbody 5 262 75 262 20 262
optcarrot 5 15 75 15 20 15
rubykon 5 15 36 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 30 22 20 22
cfunc_itself 5 433 75 433 20 433
fib 5 315 75 315 20 315
getivar 5 609 75 609 20 609
keyword_args 5 373 75 373 20 373
respond_to 5 109 75 109 20 109
setivar 5 957 75 957 20 957
str_concat 5 459 75 459 20 459

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) 1035035 779114 131 1263 0 0% 0 0 0
hexapdf (click) 1150619 925532 682 8015 10 0% 0 0 0
liquid-render (click) 522843 406805 150 1708 2 0% 0 0 0
mail (click) 946715 681123 374 5785 17 0% 0 0 0
psych-load (click) 347995 263818 68 482 1 0% 0 0 0
railsbench (click) 2658139 1968758 1436 10032 16 0% 0 0 0
binarytrees (click) 171739 128078 13 58 0 0% 0 0 0
chunky_png (click) 386267 289063 88 998 0 0% 0 0 0
erubi (click) 323611 246809 10 79 0 0% 0 0 0
erubi_rails (click) 1963163 1431254 300 2028 4 0% 0 0 0
fannkuchredux (click) 186011 138504 10 188 0 0% 0 0 0
lee (click) 385883 291379 58 632 0 0% 0 0 0
nbody (click) 183195 137737 12 171 0 0% 0 0 0
optcarrot (click) 514203 442736 207 3588 20 0% 0 0 0
rubykon (click) 320923 256511 144 1568 2 0% 0 0 0
30k_ifelse (click) 5561243 4348842 9265 57804 0 0% 0 0 0
30k_methods (click) 2176411 1657304 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170715 127147 10 49 0 0% 0 0 0
fib (click) 169243 126755 10 38 0 0% 0 0 0
getivar (click) 170971 128842 10 65 0 0% 0 0 0
keyword_args (click) 171995 127956 11 51 0 0% 0 0 0
respond_to (click) 172827 128601 10 64 0 0% 0 0 0
setivar (click) 170843 127662 10 38 0 0% 0 0 0
str_concat (click) 170843 128069 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.