YJIT Benchmarks

Details for Benchmarks at 2022-03-23 07:12:57

Overall YJIT is 32.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.2% 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 5 182 75 182 20 182
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 30 75 30 20 30
discourse 5 34 75 34 20 34
erubi 5 48 75 48 20 48
erubi_rails 5 988 75 988 20 988
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 24 15 20 15
30k_ifelse 5 56 75 56 20 56
30k_methods 5 22 29 22 20 22
cfunc_itself 5 446 75 446 20 446
fib 5 318 75 318 20 318
getivar 5 773 75 773 20 773
keyword_args 5 379 75 379 20 379
respond_to 5 106 75 106 20 106
setivar 5 1897 75 1897 20 1897

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) 988625 758714 185 1199 0 0% 0 0 0
hexapdf (click) 1107601 906135 599 8149 613 7% 0 0 320
liquid-render (click) 489937 388381 143 1531 95 6% 0 0 1
mail (click) 849041 638587 324 5031 125 2% 0 0 39
psych-load (click) 331153 261768 59 434 1 0% 0 0 0
railsbench (click) 2531537 1929874 1297 9316 268 2% 0 0 26
binarytrees (click) 144465 109528 11 59 0 0% 0 0 0
chunky_png (click) 361297 280273 85 866 0 0% 0 0 0
discourse (click) 22702737 11401968 3133 285459 261933 91% 2 0 133
erubi (click) 321937 254637 10 79 0 0% 0 0 0
erubi_rails (click) 1903249 1432520 262 1870 18 0% 0 0 3
fannkuchredux (click) 166225 127367 8 189 0 0% 0 0 0
lee (click) 373841 294593 45 587 69 11% 0 0 12
nbody (click) 162065 124444 10 159 0 0% 0 0 0
optcarrot (click) 489425 430187 198 3576 20 0% 0 0 0
rubykon (click) 293201 236709 140 1524 1 0% 0 0 0
30k_ifelse (click) 5541521 4336993 9263 57805 0 0% 0 0 0
30k_methods (click) 2157201 1645784 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150993 115298 8 50 0 0% 0 0 0
fib (click) 149841 115480 8 39 0 0% 0 0 0
getivar (click) 151569 117991 8 66 0 0% 0 0 0
keyword_args (click) 152145 116513 9 52 0 0% 0 0 0
respond_to (click) 153937 117655 8 65 0 0% 0 0 0
setivar (click) 151569 116515 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.