Is sub-millisecond response real?

Can someone please explain why does couchbase get with key-value operation performs in sub-millisecond?

Any references regarding to this information would be helpful.

Hi @rusyasoft,

The reason Couchbase Server key-value operations are generally so fast is because Couchbase uses a memory-first architecture. In many situations, you will be retrieving the data directly from RAM, and not waiting on a disk. Read more about it here: