YJIT Benchmarks

Details for Benchmarks at 2022-11-01 20:10:47

Overall YJIT is 33.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 35.8% 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 5 189 5 189
hexapdf 5 15 5 15
liquid-render 5 175 5 175
mail 5 129 5 129
psych-load 5 15 5 15
railsbench 5 15 5 15
ruby-lsp 5 244 5 244
binarytrees 5 87 5 87
chunky_png 5 32 5 32
erubi 5 66 5 66
erubi_rails 5 1061 5 1061
etanni 5 42 5 42
fannkuchredux 5 15 5 15
lee 5 20 5 20
nbody 5 245 5 245
optcarrot 5 15 5 15
rubykon 5 15 5 15
30k_ifelse 5 50 5 50
30k_methods 5 20 5 20
cfunc_itself 5 493 5 493
fib 5 326 5 326
getivar 5 426 5 426
keyword_args 5 382 5 382
respond_to 5 707 5 707
setivar 5 417 5 417
str_concat 5 469 5 469

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) 2313561 2311774 23 339 6 1% 0 0 0
hexapdf (click) 1775379 1773488 817 10051 189 1% 0 0 0
liquid-render (click) 591206 590683 154 1770 34 1% 0 0 0
mail (click) 1343404 1342931 371 5105 176 3% 0 0 0
psych-load (click) 805031 804107 68 573 19 3% 0 0 0
railsbench (click) 5531003 5529250 1777 13665 483 3% 0 0 0
ruby-lsp (click) 5604849 5602980 6423 41562 1519 3% 12854 0 0
binarytrees (click) 128452 126491 14 79 4 5% 0 0 0
chunky_png (click) 825046 822928 87 1096 31 2% 0 0 0
erubi (click) 744234 742552 11 87 4 4% 0 0 0
erubi_rails (click) 4630802 4628956 327 2628 111 4% 0 0 0
etanni (click) 129355 126501 11 47 4 8% 0 0 0
fannkuchredux (click) 140491 139998 11 209 4 1% 0 0 0
lee (click) 831849 830168 77 758 25 3% 0 0 0
nbody (click) 136026 134511 13 188 6 3% 0 0 0
optcarrot (click) 562979 561263 201 4014 93 2% 0 0 0
rubykon (click) 279356 278769 143 1590 32 2% 0 0 0
30k_ifelse (click) 5420144 5419577 9266 57136 4 0% 0 0 0
30k_methods (click) 2088352 2087875 5785 19365 4 0% 0 0 0
cfunc_itself (click) 126387 125081 11 62 4 6% 0 0 0
fib (click) 124929 124149 11 51 4 7% 0 0 0
getivar (click) 127011 125607 11 78 4 5% 0 0 0
keyword_args (click) 127178 125485 12 64 4 6% 0 0 0
respond_to (click) 119809 118038 11 78 5 6% 0 0 0
setivar (click) 127172 125420 11 51 4 7% 0 0 0
str_concat (click) 126635 125338 13 77 6 7% 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.