YJIT Benchmarks

Details for Benchmarks at 2022-04-12 07:14:43

Overall YJIT is 33.0% 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.

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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 5 181 75 181 20 181
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 121 75 121 20 121
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 61 75 61 20 61
chunky_png 5 30 75 30 20 30
discourse 5 40 75 40 20 40
erubi 5 47 75 47 20 47
erubi_rails 5 983 75 983 20 983
fannkuchredux 5 15 71 15 20 15
lee 5 21 75 21 20 21
nbody 5 275 75 275 20 275
optcarrot 5 15 75 15 20 15
rubykon 5 15 28 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 424 75 424 20 424
fib 5 320 75 320 20 320
getivar 5 771 75 771 20 771
keyword_args 5 373 75 373 20 373
respond_to 5 108 75 108 20 108
setivar 5 1782 75 1782 20 1782

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) 991889 813634 185 1189 0 0% 0 0 0
hexapdf (click) 1098513 922275 599 7883 427 5% 0 0 321
liquid-render (click) 502417 423625 143 1530 92 6% 0 0 5
mail (click) 844433 655527 324 4961 96 1% 0 0 111
psych-load (click) 341329 286443 59 434 1 0% 0 0 0
railsbench (click) 2593873 2101314 1297 9367 224 2% 0 0 26
binarytrees (click) 168657 136938 11 59 0 0% 0 0 0
chunky_png (click) 374865 308403 85 857 0 0% 0 0 0
discourse (click) 6231761 5601352 3127 26843 3245 12% 2 0 140
erubi (click) 329169 276912 10 79 0 0% 0 0 0
erubi_rails (click) 1957393 1597275 262 1889 12 0% 0 0 3
fannkuchredux (click) 181969 148399 8 189 0 0% 0 0 0
lee (click) 378513 315736 45 582 68 11% 0 0 13
nbody (click) 177681 145324 10 158 0 0% 0 0 0
optcarrot (click) 505233 450861 198 3576 20 0% 0 0 0
rubykon (click) 309969 258335 140 1523 1 0% 0 0 0
30k_ifelse (click) 5557777 4358354 9263 57805 0 0% 0 0 0
30k_methods (click) 2173137 1667238 5782 19361 0 0% 0 0 0
cfunc_itself (click) 167185 136659 8 50 0 0% 0 0 0
fib (click) 165265 135938 8 39 0 0% 0 0 0
getivar (click) 167697 139200 8 65 0 0% 0 0 0
keyword_args (click) 168273 137722 9 51 0 0% 0 0 0
respond_to (click) 170641 138816 8 65 0 0% 0 0 0
setivar (click) 167697 137724 8 38 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.