YJIT Benchmarks

Details for Benchmarks at 2022-05-17 07:17:53

Overall YJIT is 29.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 25.9% 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 5 192 75 192 20 192
hexapdf 5 15 20 15
liquid-render 5 136 75 136 20 136
mail 5 105 75 105 20 105
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 64 75 64 20 64
chunky_png 5 29 75 29 20 29
discourse 5 33 75 33 20 33
erubi 5 45 75 45 20 45
erubi_rails 5 784 75 784 20 784
fannkuchredux 5 15 73 15 20 15
lee 5 21 75 21 20 21
nbody 5 274 75 274 20 274
optcarrot 5 15 75 15 20 15
rubykon 5 15 25 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 445 75 445 20 445
fib 5 320 75 320 20 320
getivar 5 761 75 761 20 761
keyword_args 5 379 75 379 20 379
respond_to 5 103 75 103 20 103
setivar 5 1856 75 1856 20 1856
str_concat 5 197 75 197 20 197

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) 1015515 755380 131 1243 0 0% 0 0 0
hexapdf (click) 1121051 879620 682 7759 9 0% 0 0 0
liquid-render (click) 504795 387039 150 1555 2 0% 0 0 0
mail (click) 915099 661690 374 5559 15 0% 0 0 0
psych-load (click) 339355 255006 68 457 1 0% 0 0 0
railsbench (click) 2638107 1926082 1436 9837 16 0% 0 0 0
binarytrees (click) 171867 128729 13 58 0 0% 0 0 0
chunky_png (click) 376283 281729 88 966 0 0% 0 0 0
discourse (click) 5895579 4374663 3162 25025 82 0% 2 0 0
erubi (click) 319195 242693 10 79 0 0% 0 0 0
erubi_rails (click) 1946523 1400593 300 1959 4 0% 0 0 0
fannkuchredux (click) 185371 139131 10 188 0 0% 0 0 0
lee (click) 378267 283827 58 622 0 0% 0 0 0
nbody (click) 181339 135930 12 158 0 0% 0 0 0
optcarrot (click) 512539 441179 207 3571 20 0% 0 0 0
rubykon (click) 317595 250430 144 1543 1 0% 0 0 0
30k_ifelse (click) 5560859 4349053 9265 57804 0 0% 0 0 0
30k_methods (click) 2176091 1657515 5784 19361 0 0% 0 0 0
cfunc_itself (click) 170395 127358 10 49 0 0% 0 0 0
fib (click) 168859 126966 10 38 0 0% 0 0 0
getivar (click) 170139 129181 10 65 0 0% 0 0 0
keyword_args (click) 171227 127999 11 51 0 0% 0 0 0
respond_to (click) 171995 128516 10 64 0 0% 0 0 0
setivar (click) 170587 128001 10 38 0 0% 0 0 0
str_concat (click) 170587 128321 12 62 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.