YJIT Benchmarks

Details for Benchmarks at 2022-01-17 07:12:25

Overall YJIT is 31.0% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 28.5% 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 MJIT3.0 warmups MJIT3.0 iters MJIT warmups MJIT iters YJIT warmups YJIT iters
activerecord 5 188 20 188 75 188 20 188
hexapdf 5 15 20 15 20 15
liquid-render 5 183 20 183 75 183 20 183
mail 5 144 20 144 75 144 20 144
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 85 20 85 75 85 20 85
erubi 5 55 20 55 75 55 20 55
erubi_rails 5 1037 20 1037 75 1037 20 1037
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 26 20 26 75 26 20 26
nbody 5 344 20 344 75 344 20 344
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 42 15 20 15
30k_ifelse 5 62 20 62 73 62 20 62
30k_methods 5 26 20 26 41 26 20 26
cfunc_itself 5 507 20 507 75 507 20 507
fib 5 384 20 384 75 384 20 384
getivar 5 963 20 963 75 963 20 963
keyword_args 5 451 20 451 75 451 20 451
respond_to 5 130 20 130 75 130 20 130
setivar 5 2213 20 2213 75 2213 20 2213

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) 966545 740599 185 1195 0 0% 0 0 0
hexapdf (click) 1095441 897615 600 8178 613 7% 0 0 321
liquid-render (click) 476753 379121 143 1544 96 6% 0 0 1
mail (click) 874961 654918 324 5495 124 2% 0 0 39
psych-load (click) 297681 234677 58 444 1 0% 0 0 0
railsbench (click) 2512337 1913249 1297 9344 268 2% 0 0 26
binarytrees (click) 112465 86374 10 54 0 0% 0 0 0
erubi (click) 294609 234276 9 73 0 0% 0 0 0
erubi_rails (click) 1885009 1419514 261 1869 18 0% 0 0 3
fannkuchredux (click) 126225 97072 7 184 0 0% 0 0 0
lee (click) 336977 265264 45 586 72 12% 0 0 12
nbody (click) 121745 93575 9 154 0 0% 0 0 0
optcarrot (click) 448977 399205 197 3571 20 0% 0 0 0
rubykon (click) 253265 206568 139 1528 1 0% 0 0 0
30k_ifelse (click) 5501521 4306698 9262 57800 0 0% 0 0 0
30k_methods (click) 2116689 1615160 5781 19357 0 0% 0 0 0
cfunc_itself (click) 110929 85003 7 45 0 0% 0 0 0
fib (click) 109521 84611 7 34 0 0% 0 0 0
getivar (click) 111249 87122 7 61 0 0% 0 0 0
keyword_args (click) 111825 85644 8 47 0 0% 0 0 0
respond_to (click) 113105 86457 7 60 0 0% 0 0 0
setivar (click) 111249 85646 7 34 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.