Re: [gentoo-user] To swap or not to swap? Is it really needed?

[Michael Mol <mikemol@gmail.com>]

On Fri, Dec 30, 2011 at 2:31 AM, Dale <rdalek1967@gmail.com> wrote:
> Michael Mol wrote:
>>
>> On Thu, Dec 29, 2011 at 9:23 PM, Claudio Roberto França Pereira
>> <spideybr@gmail.com>  wrote:
>>>
>>> ZRAM is a compressed ramdisk for swap, right? I'm really not
>>> interested currently.
>>> My next system will have 16gb of ram, and I'll create an 8gb ramdisk
>>> on it to increase emerge performance. Other than that, I'm pretty
>>> happy with my system performance, disabling swap and compositing
>>> effects (remember, open source radeon drivers, I might try fglrx again
>>> but I really liked KMS) did the trick.
>>
>> 8GB isn't enough for some packages. Though putting it on top of zram
>> might work. I don't know how you'd calculate the free space, though,
>> and portage would check in advance.
>>
>
> I have portages work directory on tmpfs and it works fine.  I don't have it
> set to a specific amount so it uses whatever it needs.  It even works fine
> with LOo.  I have 16Gbs in all but it rarely uses more than 4Gbs.  Of
> course, I don't just sit here and watch it either.  I start my updates and
> usually go to bed.

Hm. tmpfs defaults (at least on my system) to a capacity of about 3GB.
What do you have for mount options in fstab?

I used to put portage's work directory on tmpfs, but I had to stop
when LO ran out of space in a pre-check, IIRC. Now I have it on top of
a RAID5 it shares with /home.

-- 
:wq