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 :: Mailing Lists

[ILUG] Memory Usage at 98%

[ILUG] Memory Usage at 98%

Niall O Broin niall at linux.ie
Sat Aug 6 18:58:40 IST 2005


On 6 Aug 2005, at 15:32, Paul Jakma wrote:

> On Thu, 4 Aug 2005, Niall O Broin wrote:
>
>> memory idle. Over time, free memory in your box will be used as 
>> buffers / cache, and this is why you see usage building up from 20% 
>> to 98%. Nothing
>
> Not even over time - at least one distro these days does a 'readahead' 
> early in the boot to try prime the page cache.

What on earth does it try to read ahead? I could see maybe scanning 
filesystems, and then reading those files which were most recently read 
(though obviously not during boot) but that sounds expensive.


Niall




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