YJIT Benchmarks

Details for Benchmarks at 2022-09-03 20:12:44

Overall YJIT is 35.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 32.1% 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 5 156 75 156 20 156
mail 5 127 75 127 20 127
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 30 75 30 20 30
erubi 5 61 75 61 20 61
erubi_rails 5 1042 75 1042 20 1042
fannkuchredux 5 15 75 15 20 15
lee 5 20 75 20 20 20
nbody 5 261 75 261 20 261
optcarrot 5 15 75 15 20 15
rubykon 5 15 37 15 20 15
30k_ifelse 5 54 70 54 20 54
30k_methods 5 25 21 25 20 25
cfunc_itself 5 449 75 449 20 449
fib 5 304 75 304 20 304
getivar 5 616 75 616 20 616
keyword_args 5 383 75 383 20 383
respond_to 5 105 75 105 20 105
setivar 5 969 75 969 20 969
str_concat 5 487 75 487 20 487

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) 1076023 780518 131 1263 0 0% 0 0 0
hexapdf (click) 1192695 922629 682 8017 10 0% 0 0 0
liquid-render (click) 539063 404687 150 1705 2 0% 0 0 0
mail (click) 934647 650888 374 5346 17 0% 0 0 0
psych-load (click) 359991 263030 68 480 1 0% 0 0 0
railsbench (click) 2763959 1970314 1436 10037 16 0% 0 0 0
binarytrees (click) 177143 127751 13 58 0 0% 0 0 0
chunky_png (click) 402359 290258 88 1006 0 0% 0 0 0
erubi (click) 344439 252507 10 79 0 0% 0 0 0
erubi_rails (click) 2045559 1432316 300 2021 4 0% 0 0 0
fannkuchredux (click) 191287 137519 10 196 0 0% 0 0 0
lee (click) 399863 290588 58 634 0 0% 0 0 0
nbody (click) 186935 135468 12 171 0 0% 0 0 0
optcarrot (click) 536119 442347 207 3588 20 0% 0 0 0
rubykon (click) 332023 256144 144 1570 1 0% 0 0 0
30k_ifelse (click) 5705271 4348219 9265 57804 0 0% 0 0 0
30k_methods (click) 2209847 1656681 5784 19361 0 0% 0 0 0
cfunc_itself (click) 175735 126524 10 49 0 0% 0 0 0
fib (click) 174071 126132 10 38 0 0% 0 0 0
getivar (click) 175863 128219 10 65 0 0% 0 0 0
keyword_args (click) 176375 127097 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) 175671 127086 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.