YJIT Benchmarks

Details for Benchmarks at 2022-02-19 07:12:13

Overall YJIT is 32.8% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 31.7% 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 5 173 20 173 75 173 20 173
hexapdf 5 15 20 15 20 15
liquid-render 5 153 20 153 75 153 20 153
mail 5 122 20 122 75 122 20 122
psych-load 5 15 20 15 75 15 20 15
railsbench 5 15 20 15 75 15 20 15
binarytrees 5 75 20 75 75 75 20 75
discourse 5 36 20 36 75 36 20 36
erubi 5 47 20 47 75 47 20 47
erubi_rails 5 963 20 963 75 963 20 963
fannkuchredux 5 15 20 15 75 15 20 15
lee 5 21 20 21 75 21 20 21
nbody 5 287 20 287 75 287 20 287
optcarrot 5 15 20 15 75 15 20 15
rubykon 5 15 20 15 38 15 20 15
30k_ifelse 5 55 20 55 75 55 20 55
30k_methods 5 22 20 22 30 22 20 22
cfunc_itself 5 444 20 444 75 444 20 444
fib 5 319 20 319 75 319 20 319
getivar 5 774 20 774 75 774 20 774
keyword_args 5 379 20 379 75 379 20 379
respond_to 5 104 20 104 75 104 20 104
setivar 5 1758 20 1758 75 1758 20 1758

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) 993681 761544 185 1199 0 0% 0 0 0
hexapdf (click) 1118481 916218 600 8168 615 7% 0 0 320
liquid-render (click) 492817 391530 143 1533 96 6% 0 0 1
mail (click) 881937 661360 324 5310 125 2% 0 0 39
psych-load (click) 334353 264457 59 434 1 0% 0 0 0
railsbench (click) 2529937 1928899 1297 9264 268 2% 0 0 26
binarytrees (click) 151249 115993 11 59 0 0% 0 0 0
discourse (click) 23303953 11642782 3133 294965 271455 92% 2 0 133
erubi (click) 325393 257812 10 79 0 0% 0 0 0
erubi_rails (click) 1910929 1439516 262 1901 18 0% 0 0 3
fannkuchredux (click) 164561 126387 8 189 0 0% 0 0 0
lee (click) 377169 297445 45 587 69 11% 0 0 12
nbody (click) 160081 122890 10 159 0 0% 0 0 0
optcarrot (click) 487313 428520 198 3576 20 0% 0 0 0
rubykon (click) 294161 237651 140 1560 1 0% 0 0 0
30k_ifelse (click) 5539857 4336013 9263 57805 0 0% 0 0 0
30k_methods (click) 2155025 1644475 5782 19362 0 0% 0 0 0
cfunc_itself (click) 149777 114647 8 50 0 0% 0 0 0
fib (click) 148369 114255 8 39 0 0% 0 0 0
getivar (click) 149585 116437 8 66 0 0% 0 0 0
keyword_args (click) 150161 114959 9 52 0 0% 0 0 0
respond_to (click) 151441 115772 8 65 0 0% 0 0 0
setivar (click) 149585 114961 8 39 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.