YJIT Benchmarks

Details for Benchmarks at 2022-09-09 05:34:07

Overall YJIT is 33.5% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.6% 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 5 195 75 195 20 195
hexapdf 5 15 20 15
liquid-render 5 161 75 161 20 161
mail 5 127 75 127 20 127
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 63 75 63 20 63
chunky_png 5 30 75 30 20 30
erubi 5 68 75 68 20 68
erubi_rails 5 1051 75 1051 20 1051
fannkuchredux 5 15 56 15 20 15
lee 5 21 75 21 20 21
nbody 5 264 75 264 20 264
optcarrot 5 15 75 15 20 15
rubykon 5 15 32 15 20 15
30k_ifelse 5 54 72 54 20 54
30k_methods 5 25 23 25 20 25
cfunc_itself 5 451 75 451 20 451
fib 5 309 75 309 20 309
getivar 5 469 75 469 20 469
keyword_args 5 381 75 381 20 381
respond_to 5 109 75 109 20 109
setivar 5 379 75 379 20 379
str_concat 5 421 75 421 20 421

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) 1075639 780225 131 1260 0 0% 0 0 0
hexapdf (click) 1193911 923729 682 8015 9 0% 0 0 0
liquid-render (click) 535607 401373 150 1667 2 0% 0 0 0
mail (click) 944631 658140 374 5435 17 0% 0 0 0
psych-load (click) 360375 263223 68 482 1 0% 0 0 0
railsbench (click) 2763255 1971982 1436 10005 16 0% 0 0 0
binarytrees (click) 177143 127751 13 58 0 0% 0 0 0
chunky_png (click) 408055 293466 88 1063 0 0% 0 0 0
erubi (click) 345783 253569 10 79 0 0% 0 0 0
erubi_rails (click) 2045879 1432683 300 2026 4 0% 0 0 0
fannkuchredux (click) 191287 137519 10 196 0 0% 0 0 0
lee (click) 399927 290588 58 634 0 0% 0 0 0
nbody (click) 188471 136946 12 171 0 0% 0 0 0
optcarrot (click) 535351 441973 207 3588 20 0% 0 0 0
rubykon (click) 331895 255870 144 1570 1 0% 0 0 0
30k_ifelse (click) 5703991 4347516 9265 57804 0 0% 0 0 0
30k_methods (click) 2208567 1655928 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175735 126474 10 49 0 0% 0 0 0
fib (click) 173111 125757 10 38 0 0% 0 0 0
getivar (click) 174583 127516 10 65 0 0% 0 0 0
keyword_args (click) 176439 127165 11 51 0 0% 0 0 0
respond_to (click) 178039 127978 10 64 0 0% 0 0 0
setivar (click) 175799 127039 10 38 0 0% 0 0 0
str_concat (click) 174711 126761 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.