Re: [gentoo-user] Re: swap usage creeping up

[Iain Buchanan <iaindb@netspace.net.au>]

On Thu, 2010-10-28 at 16:13 +0000, James wrote:

> Hello Iain,

hey :)

> >From a hardware guy; If you really need hibernate, use it.
> No laptop was designed to stay powered on continuously
> despite the features in software and hardware.
[snip]
> If you need hibernate, use it. If you do not, your hardware
> will last longer being powered down.
[snip]

er, hibernate IS powering down.  S3 powers off everything (Disks, CPU,
fans) but leaves a minimal amount of power to the solid-state
no-moveable-parts RAM.  S4 writes a bunch of stuff to disks and then
powers down just like a normal shut down (S5).  You can even take out
the battery (I even stripped an old laptop, removed the cpu, disks, heat
pipes, fans, and put it all back together on S4 and then resumed).  S4
can leave some bios function and power for WOL and other devices, but
it's not essential.

In fact S5 which every modern ATX computer does STILL leaves power to
USB, WOL, modems & keyboards, if required.

So when I say 12 day uptimes, this is calculated by the kernel since I
last rebooted, not since I last hibernated.  I'm not actually running
the laptop for 12 days continuously.  Although, IMHO, there's no
difference to a laptop or desktop in this regard.

Push it to the limits I say ;)
-- 
Iain Buchanan <iaindb at netspace dot net dot au>

serendipity, n.:
	The process by which human knowledge is advanced.