YJIT Benchmarks

Details for Benchmarks at 2022-03-20 07:12:44

Overall YJIT is 33.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.4% 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.

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 5 181 75 181 20 181
hexapdf 5 15 20 15
liquid-render 5 150 75 150 20 150
mail 5 123 75 123 20 123
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 68 75 68 20 68
chunky_png 5 30 75 30 20 30
discourse 5 34 75 34 20 34
erubi 5 48 75 48 20 48
erubi_rails 5 985 75 985 20 985
fannkuchredux 5 15 75 15 20 15
lee 5 22 75 22 20 22
nbody 5 284 75 284 20 284
optcarrot 5 15 75 15 20 15
rubykon 5 15 38 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 419 75 419 20 419
fib 5 320 75 320 20 320
getivar 5 802 75 802 20 802
keyword_args 5 354 75 354 20 354
respond_to 5 99 75 99 20 99
setivar 5 1902 75 1902 20 1902

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) 991761 760831 185 1198 0 0% 0 0 0
hexapdf (click) 1114001 912391 600 8174 615 7% 0 0 320
liquid-render (click) 486609 386628 143 1538 95 6% 0 0 1
mail (click) 878225 658728 324 5313 125 2% 0 0 39
psych-load (click) 330897 261621 59 434 1 0% 0 0 0
railsbench (click) 2534097 1932090 1297 9363 268 2% 0 0 26
binarytrees (click) 152273 116983 11 59 0 0% 0 0 0
chunky_png (click) 364945 284382 85 859 0 0% 0 0 0
discourse (click) 22718993 11409203 3187 286019 261947 91% 2 0 133
erubi (click) 321169 254333 10 79 0 0% 0 0 0
erubi_rails (click) 1908433 1437438 262 1903 18 0% 0 0 3
fannkuchredux (click) 166161 127794 8 189 0 0% 0 0 0
lee (click) 366865 287978 45 587 69 11% 0 0 12
nbody (click) 162065 124553 10 159 0 0% 0 0 0
optcarrot (click) 489361 430143 198 3576 20 0% 0 0 0
rubykon (click) 292881 236879 140 1536 3 0% 0 0 0
30k_ifelse (click) 5541521 4337420 9263 57805 0 0% 0 0 0
30k_methods (click) 2156497 1645769 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150417 115038 8 50 0 0% 0 0 0
fib (click) 149329 115220 8 39 0 0% 0 0 0
getivar (click) 151057 117731 8 66 0 0% 0 0 0
keyword_args (click) 151825 116366 9 52 0 0% 0 0 0
respond_to (click) 153105 117179 8 65 0 0% 0 0 0
setivar (click) 151057 116255 8 39 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.