Re: [Devil-linux-develop] kernel compile

[Heiko Z. <he...@zu...>]

Manu wrote:

>
>
> Heiko Zuerker a écrit:
>
>> Diego Torres wrote:
>>
>>> On Wed, Oct 22, 2003 at 10:25:37AM -0400, Heiko Zuerker wrote:
>>>  
>>>
>>>> Modifications have to be done to the following scripts:
>>>> prepare
>>>> linux
>>>> settings
>>>>   
>>>
>>>
>>>
>>> about the config_linux settings for the kernel:
>>>
>>> why is this configured:
>>>
>>> CONFIG_HIGHMEM4G=y
>>> CONFIG_HIGHMEM=y
>>> CONFIG_HIGHIO=y
>>>
>>> Support for highmem is only worth when the system has more than 4g, 
>>> and then, there is a penalty for each page access. also, pages are 
>>> bigger (so more memory can be dimensioned).
>>>
>>> This should be a more practical configuration:
>>>
>>> CONFIG_NOHIGHMEM=y
>>> # CONFIG_HIGHMEM4G is not set
>>> # CONFIG_HIGHMEM64G is not set
>>> # CONFIG_HIGHMEM is not set
>>>
>>>  
>>>
>> We need the highmem support for computers with >= 1 GB RAM, which is 
>> not so uncommon. 
>
>
> Hi all,
>
> You've got too much money ;-)
> Do you really know lots of people who runs DL on a 1 Gb Ram Box as 
> firewall ?
> Mine is K6-200 Mhz with 64 Mb ;-)
>
> I suggest keeping 4Gb for apache + mail + av Boxes, not for Fw as 
> those old recycled PCs will probably suffer from page access overhead ...
>
> I think it should be in the menuconfig options ...

Anybody else thinks we should put it into menuconfig ?
We could turn it off automatically, when the CPU type is i586 or lower.

cya
  Heiko