YJIT Benchmarks

Details for Benchmarks at 2022-03-29 07:18:11

Overall YJIT is 30.9% faster than interpreted CRuby!
On Railsbench specifically, YJIT is 29.0% 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 5 183 75 183 20 183
hexapdf 5 15 20 15
liquid-render 5 156 75 156 20 156
mail 5 124 75 124 20 124
psych-load 5 15 75 15 20 15
railsbench 5 15 75 15 20 15
binarytrees 5 66 75 66 20 66
chunky_png 5 29 75 29 20 29
discourse 5 35 75 35 20 35
erubi 5 47 75 47 20 47
erubi_rails 5 987 75 987 20 987
fannkuchredux 5 15 74 15 20 15
lee 5 22 75 22 20 22
nbody 5 283 75 283 20 283
optcarrot 5 15 75 15 20 15
rubykon 5 15 23 15 20 15
30k_ifelse 5 55 75 55 20 55
30k_methods 5 22 29 22 20 22
cfunc_itself 5 447 75 447 20 447
fib 5 320 75 320 20 320
getivar 5 771 75 771 20 771
keyword_args 5 379 75 379 20 379
respond_to 5 99 75 99 20 99
setivar 5 1835 75 1835 20 1835

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) 986321 755552 185 1199 0 0% 0 0 0
hexapdf (click) 1109265 907642 599 8163 615 7% 0 0 320
liquid-render (click) 485841 384884 143 1509 95 6% 0 0 1
mail (click) 848465 638315 324 5024 125 2% 0 0 39
psych-load (click) 331153 261768 59 434 1 0% 0 0 0
railsbench (click) 2534737 1931645 1297 9353 268 2% 0 0 26
binarytrees (click) 152977 116998 11 59 0 0% 0 0 0
chunky_png (click) 366737 286117 85 864 0 0% 0 0 0
discourse (click) 23003665 11520823 3132 290189 266633 91% 2 0 133
erubi (click) 322193 255098 10 79 0 0% 0 0 0
erubi_rails (click) 1908945 1437431 262 1896 18 0% 0 0 3
fannkuchredux (click) 166225 127367 8 189 0 0% 0 0 0
lee (click) 373329 294264 45 587 69 11% 0 0 12
nbody (click) 162065 124444 10 159 0 0% 0 0 0
optcarrot (click) 488977 429500 198 3576 20 0% 0 0 0
rubykon (click) 294097 237535 140 1530 1 0% 0 0 0
30k_ifelse (click) 5541841 4337567 9263 57805 0 0% 0 0 0
30k_methods (click) 2157521 1646358 5782 19362 0 0% 0 0 0
cfunc_itself (click) 151249 115872 8 50 0 0% 0 0 0
fib (click) 149521 114906 8 39 0 0% 0 0 0
getivar (click) 151569 117991 8 66 0 0% 0 0 0
keyword_args (click) 152145 116513 9 52 0 0% 0 0 0
respond_to (click) 145233 109724 8 65 0 0% 0 0 0
setivar (click) 151569 116515 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.