YJIT Benchmarks

Details for Benchmarks at 2023-08-13 19:08:15

Overall YJIT is 60.1% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 60.3% 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 YJIT warmups YJIT iters
activerecord 30 466 30 466
chunky-png 30 30 30 30
erubi-rails 30 1394 30 1394
hexapdf 30 15 30 15
liquid-c 30 347 30 347
liquid-compile 30 362 30 362
liquid-render 30 228 30 228
lobsters 15 15 15 15
mail 30 156 30 156
psych-load 30 15 30 15
railsbench 30 15 30 15
ruby-lsp 30 389 30 389
sequel 30 301 30 301
binarytrees 30 87 30 87
erubi 30 78 30 78
etanni 30 51 30 51
fannkuchredux 30 26 30 26
fluentd 30 15 30 15
lee 30 21 30 21
nbody 30 279 30 279
optcarrot 30 15 30 15
rack 30 187 30 187
ruby-json 30 15 30 15
rubykon 30 15 30 15
30k_ifelse 30 56 30 56
30k_methods 30 23 30 23
cfunc_itself 30 540 30 540
fib 30 453 30 453
getivar 30 938 30 938
keyword_args 30 433 30 433
respond_to 30 803 30 803
setivar 30 1666 30 1666
setivar_object 30 475 30 475
setivar_young 30 474 30 474
str_concat 30 467 30 467
throw 30 701 30 701

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) 812511 732624 51 512 1 0% 0 0 0
chunky-png (click) 335060 300360 86 1080 1 0% 0 0 0
erubi-rails (click) 1957744 1652000 288 2903 1 0% 0 0 0
hexapdf (click) 1376903 1315658 600 11943 22 0% 0 0 0
liquid-c (click) 470474 475714 122 1643 3 0% 0 0 0
liquid-compile (click) 357031 357691 150 2090 2 0% 0 0 0
liquid-render (click) 546473 517970 146 2121 9 0% 0 0 0
lobsters (click) 8594186 7280022 3249 47148 55 0% 0 0 0
mail (click) 694051 663569 347 4837 9 0% 0 0 0
psych-load (click) 260843 257935 64 600 1 0% 0 0 0
railsbench (click) 2706370 2411207 1359 12208 11 0% 0 0 0
ruby-lsp (click) 5768652 5454342 3416 51245 390 0% 4 0 0
sequel (click) 442947 435587 16 127 0 0% 0 0 0
binarytrees (click) 8985 7526 11 75 0 0% 0 0 0
erubi (click) 228786 229607 9 83 0 0% 0 0 0
etanni (click) 29396 27360 11 77 0 0% 0 0 0
fannkuchredux (click) 19508 20418 8 219 0 0% 0 0 0
fluentd (click) 369190 334817 12 105 0 0% 0 0 0
lee (click) 287648 275193 49 705 0 0% 0 0 0
nbody (click) 16636 16665 10 178 0 0% 0 0 0
optcarrot (click) 327181 393652 197 4500 22 0% 0 0 0
rack (click) 238320 234492 30 309 0 0% 0 0 0
ruby-json (click) 25560 22379 11 191 0 0% 0 0 0
rubykon (click) 128442 135380 145 1491 2 0% 0 0 0
30k_ifelse (click) 5410784 4368416 9263 50806 0 0% 0 0 0
30k_methods (click) 1981346 1528614 5781 19360 0 0% 0 0 0
cfunc_itself (click) 6328 4985 8 61 0 0% 0 0 0
fib (click) 4858 4492 8 49 0 0% 0 0 0
getivar (click) 6004 6018 8 74 0 0% 0 0 0
keyword_args (click) 7103 5579 9 63 0 0% 0 0 0
respond_to (click) 6865 7099 8 76 0 0% 0 0 0
setivar (click) 5155 4579 8 54 0 0% 0 0 0
setivar_object (click) 5493 4599 8 54 0 0% 0 0 0
setivar_young (click) 6280 5575 9 62 0 0% 0 0 0
str_concat (click) 6732 6388 10 76 0 0% 0 0 0
throw (click) 7549 5941 10 69 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.