Oh JMH is a good idea, I'll try that, thanks
On Wed, Dec 30, 2020 at 10:31 AM Robert Muir wrote:
>
> Can you boil this down to a microbenchmark (e.g. JMH) so you can look
> at assembly?
>
> Maybe with on-heap, the dot product is getting vectorized, but with
> off-heap/unsafe it is not.
> e.g. som
Can you boil this down to a microbenchmark (e.g. JMH) so you can look
at assembly?
Maybe with on-heap, the dot product is getting vectorized, but with
off-heap/unsafe it is not.
e.g. something like this recent bug:
https://bugs.openjdk.java.net/browse/JDK-8257531
You could re-run your bench on a
Hi, I've been working on improving performance of vector KNN search,
and found some behavior that seemed surprising to me, showing huge
differences in some cases comparing on-heap memory access with the way
we access data today via IndexInput. I'd love to get some other eyes
on this to help me bett
