Re: [Firebird-devel] FB 2.1 64bit and memory usage ??

[Leyne, S. <Se...@br...>]

Dmitry,

> While the 64-bit builds can use more than 2GB of memory, it's true for
> the overall memory usage only. But the page cache size is limited by
> 128K pages (512MB-2GB, depending on the page size).

How was the cache 128K page limit arrived at?

Could the limit be increased to 256K and beyond; for 32Bit?


> I think we should increase the limit, at least for the 64-bit builds.
> Objections anyone?

No.  But I have a question:

Is there a point at which the performance of new cache logic might
degrade?

(If we allowed the cache to be 1M pages; would that result in degraded
performance?)


Sean