Re: kernel page size explanation

Robert Hancock
2005-07-22T00:20:32Z

Gaspar Bakos wrote:
> Hi,
>
> Sorry for this nursery-school question.
>
> Could someone briefly explain me :
> 1. what is the kernel page size (any _useful_ pointer on the web is fine),
> 2. how can one tune it (for 2.6.*)?
> 3. what kind of effect does it have on system performance, if it is
> tuneable, and if it worth changing this at all?

This is dependent on the hardware, not really the OS. On x86 the
normally used page size is 4KB. 4MB pages are also supported but are
usually used only for special purposes (ex: hugetlbfs).

As you mentioned some other architectures like Itanium support different
page sizes.

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