YJIT Benchmarks

Details for Benchmarks at 2022-09-05 20:13:00

Overall YJIT is 35.2% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 34.2% 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 5 194 75 194 20 194
hexapdf 5 15 20 15
liquid-render 5 161 75 161 20 161
mail 5 125 75 125 20 125
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 67 75 67 20 67
chunky_png 5 30 75 30 20 30
erubi 5 62 75 62 20 62
erubi_rails 5 1031 75 1031 20 1031
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 33 15 20 15
30k_ifelse 5 54 72 54 20 54
30k_methods 5 25 22 25 20 25
cfunc_itself 5 448 75 448 20 448
fib 5 308 75 308 20 308
getivar 5 469 75 469 20 469
keyword_args 5 375 75 375 20 375
respond_to 5 103 75 103 20 103
setivar 5 379 75 379 20 379
str_concat 5 483 75 483 20 483

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) 1076471 780891 131 1267 0 0% 0 0 0
hexapdf (click) 1195511 924814 682 8022 9 0% 0 0 0
liquid-render (click) 534839 401873 150 1674 2 0% 0 0 0
mail (click) 957751 665333 374 5566 17 0% 0 0 0
psych-load (click) 360695 263576 68 482 1 0% 0 0 0
railsbench (click) 2759607 1967964 1436 10004 16 0% 0 0 0
binarytrees (click) 176183 127426 13 58 0 0% 0 0 0
chunky_png (click) 402807 290774 88 1007 0 0% 0 0 0
erubi (click) 344439 252507 10 79 0 0% 0 0 0
erubi_rails (click) 2045815 1432288 300 2026 4 0% 0 0 0
fannkuchredux (click) 190263 136909 10 196 0 0% 0 0 0
lee (click) 399159 290145 58 634 0 0% 0 0 0
nbody (click) 187191 136381 12 171 0 0% 0 0 0
optcarrot (click) 534839 441594 207 3588 20 0% 0 0 0
rubykon (click) 332087 256788 144 1583 1 0% 0 0 0
30k_ifelse (click) 5704311 4347894 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) 173111 125807 10 38 0 0% 0 0 0
getivar (click) 174583 127654 10 65 0 0% 0 0 0
keyword_args (click) 175479 126840 11 51 0 0% 0 0 0
respond_to (click) 176759 127275 10 64 0 0% 0 0 0
setivar (click) 174839 126714 10 38 0 0% 0 0 0
str_concat (click) 174455 126668 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.