10.06.2016 11:02, Dmitry Kuzmenko kdv@... [Firebird-general] wrote:

> >>4. FB 2.5 SS - 32 threads are 3 times slower than 1 thread
>
> uycuFg> That is a strange result, I assume that you did the tests on
> uycuFg> a fast hard drive? I've made my tests on SSD.
> uycuFg> My threads were operating on a short transactions, 100 record per transaction.
>
> strange result - where? Firebird 2.5 SS can't use SMP, so, it
> definitely work slower with parallel threads than 3.0 SMP.

Indexes on the table and PK generation method affect performance greatly.


--
WBR, SD.