YJIT Benchmarks

Details for Benchmarks at 2022-08-30 05:42:00

Overall YJIT is 33.4% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.6% 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 5 188 75 188 20 188
hexapdf 5 15 20 15
liquid-render 5 159 75 159 20 159
mail 5 124 75 124 20 124
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 28 75 28 20 28
erubi 5 61 75 61 20 61
erubi_rails 5 975 75 975 20 975
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 259 75 259 20 259
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 51 69 51 20 51
30k_methods 5 24 22 24 20 24
cfunc_itself 5 412 75 412 20 412
fib 5 294 75 294 20 294
getivar 5 610 75 610 20 610
keyword_args 5 366 75 366 20 366
respond_to 5 99 75 99 20 99
setivar 5 984 75 984 20 984
str_concat 5 403 75 403 20 403

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) 1121539 780411 131 1265 0 0% 0 0 0
hexapdf (click) 1250307 922880 682 8012 9 0% 0 0 0
liquid-render (click) 560259 402044 150 1660 2 0% 0 0 0
mail (click) 969603 647874 374 5340 17 0% 0 0 0
psych-load (click) 375875 263601 68 482 1 0% 0 0 0
railsbench (click) 2875587 1967994 1436 10000 16 0% 0 0 0
binarytrees (click) 184835 127751 13 58 0 0% 0 0 0
chunky_png (click) 425027 293655 88 1067 0 0% 0 0 0
erubi (click) 357571 251686 10 79 0 0% 0 0 0
erubi_rails (click) 2130243 1432049 300 2017 4 0% 0 0 0
fannkuchredux (click) 199683 137519 10 196 0 0% 0 0 0
lee (click) 416899 290591 58 632 0 0% 0 0 0
nbody (click) 196739 136946 12 171 0 0% 0 0 0
optcarrot (click) 563651 442725 207 3588 20 0% 0 0 0
rubykon (click) 350019 258242 144 1593 1 0% 0 0 0
30k_ifelse (click) 5920963 4348597 9265 57804 0 0% 0 0 0
30k_methods (click) 2288003 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 183363 126524 10 49 0 0% 0 0 0
fib (click) 181699 126132 10 38 0 0% 0 0 0
getivar (click) 183939 128597 10 65 0 0% 0 0 0
keyword_args (click) 184131 127165 11 51 0 0% 0 0 0
respond_to (click) 185859 127978 10 64 0 0% 0 0 0
setivar (click) 183363 127039 10 38 0 0% 0 0 0
str_concat (click) 183683 127749 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.