YJIT Benchmarks

Details for Benchmarks at 2022-03-17 07:12:56

Overall YJIT is 33.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.6% 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 5 183 75 183 20 183
hexapdf 5 15 20 15
liquid-render 5 157 75 157 20 157
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 5 974 75 974 20 974
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 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 439 75 439 20 439
fib 5 320 75 320 20 320
getivar 5 798 75 798 20 798
keyword_args 5 377 75 377 20 377
respond_to 5 102 75 102 20 102
setivar 5 1915 75 1915 20 1915

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) 990417 758457 185 1199 0 0% 0 0 0
hexapdf (click) 1115089 913528 600 8171 613 7% 0 0 320
liquid-render (click) 489297 387950 143 1533 95 6% 0 0 1
mail (click) 877841 658579 324 5308 125 2% 0 0 39
psych-load (click) 330641 261508 59 434 1 0% 0 0 0
railsbench (click) 2538193 1934394 1297 9395 268 2% 0 0 26
binarytrees (click) 151953 116409 11 59 0 0% 0 0 0
chunky_png (click) 364625 284307 85 857 0 0% 0 0 0
discourse (click) 22699985 11401567 3133 285461 261960 91% 2 0 133
erubi (click) 321809 254593 10 79 0 0% 0 0 0
erubi_rails (click) 1908753 1437958 262 1900 18 0% 0 0 3
fannkuchredux (click) 166033 127681 8 189 0 0% 0 0 0
lee (click) 372881 294004 45 587 69 11% 0 0 12
nbody (click) 161233 123610 10 159 0 0% 0 0 0
optcarrot (click) 489297 430143 198 3576 20 0% 0 0 0
rubykon (click) 294161 237419 141 1536 1 0% 0 0 0
30k_ifelse (click) 5541009 4336733 9263 57805 0 0% 0 0 0
30k_methods (click) 2156497 1645769 5782 19362 0 0% 0 0 0
cfunc_itself (click) 150737 115612 8 50 0 0% 0 0 0
fib (click) 149137 115097 8 39 0 0% 0 0 0
getivar (click) 151249 117844 8 66 0 0% 0 0 0
keyword_args (click) 151633 116253 9 52 0 0% 0 0 0
respond_to (click) 152913 117066 8 65 0 0% 0 0 0
setivar (click) 151441 116423 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.