« Return to Thread: [Cooker] [RFC] Enabling HIGHMEM support on kernel desktop586

[Cooker] Re: [Kernel-Discuss] [RFC] Enabling HIGHMEM support on kernel desktop586

by Anssi Hannula-3 :: Rate this Message:

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Herton Ronaldo Krzesinski wrote:

> Hi,
>
> currently on kernel-desktop586 HIGHMEM is disabled, mainly because there is
> some slightly overhead with it enabled and this kernel was meant for old
> machines with low memory. But the desktop586 is used on Mandriva One (to work
> on most hardware as possible, even the older ones and not 686 compatible arch
> cpus), and we get many reports of it not detecting all memory available,
> because systems with more than 896MB are very common today.
>
> I measured recently the boot time of a geode with 512MB with highmem4g
> enabled/nohighmem and didn't notice a significant difference at least on boot
> time (the difference was around 1s or less, still in some error margin). So
> what about we rediscuss this again and now enable CONFIG_HIGHMEM4G also on
> desktop586 kernel? I think that there are more benefits in enabling it.

As I brought this up in IRC, obviously +1 from here.

--
Anssi Hannula

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