linux uninstall

[tinker]

Re: linux uninstall

Fintan, I would agree that with 4G RAM, swap shouldn't need to be hit much if at all but what if it is a laptop that wants to hibernate, suspend to disk? Doesn't the hibernate file live on swap? I'm not sure what happens, maybe it goes somewhere else, I'm going to test that someday when I get a round tuit. You would need a swap of sufficient size to hold the contents of RAM, which, since I think it is compressed, still needs something in the neighbourhood of 1/2 RAM. I'm open to learn here, if you are certain about your points.

[The Liquidator]

Re: linux uninstall

I have a laptop with 1 GB Ram and a 1Gb swap partition and I regularly hibernate it. Works fine. However, the majority of the stuff I do does not involve the system actually hitting the swap partition during use. If it did, I suspect I would have a problem hibernating, so to that end perhaps the 2x Ram equation may still have some relevance.

[Fintan]

Re: linux uninstall

I am not sure about laptops, because I don't have (yet) one but I would be amazed if the hibernation file was larger than 1gig and I don't know if it lives on the swap. That might be interesting to check

But this is a good reference:
http://linux.derkeiler.com/Newsgroup...5-02/0041.html

Edit: we are leaving the theme of this thread, but just to add a small note:

Swap usage on my smaller system:

fintan1@fintanws2:~$ free
total used free shared buffers cached
Mem: 515980 448664 67316 0 17872 246348
-/+ buffers/cache: 184444 331536
Swap: 674688 0 674688

You can try this using various apps. like ooo, gimp, vlc, mplayer and find out how much swap space you are actually using.

[tinker]

Re: linux uninstall

I am not sure about laptops, because I don't have (yet) one but I would be amazed if the hibernation file was larger than 1gig and I don't know if it lives on the swap. That might be interesting to check

It will definitely have to be large enough to hold the contents of memory and naturally that will be related to what you are running at the time of hibernation. As I mentioned, I think it compresses to around half of the RAM used.

Actually, I monitor swap used dynamically with GKrellm as a dashboard. However, I don't have a system with the 4G of RAM that the OP does so I never need larger than 1G swap.

Edit: we are leaving the theme of this thread...

Ack.

[muzicman0]

Re: linux uninstall

thanks guys!

Just FYI, I believe suspend to RAM does not actually use the swap file...it puts your laptop in a low power state, except for RAM, so that as long as your battery has a charge, you can resume. I believe there is also a hybrid suspend that uses both RAM and disk...not sure if this is what Kubuntu uses or not...

mm0

[tinker]

Re: linux uninstall

thanks guys!

Just FYI, I believe suspend to RAM does not actually use the swap file...it puts your laptop in a low power state, except for RAM, so that as long as your battery has a charge, you can resume. I believe there is also a hybrid suspend that uses both RAM and disk...not sure if this is what Kubuntu uses or not...

mm0

You are correct about sleep, suspend to RAM, what I was talking about and mentioned is hibernate, suspend to disk. Both are sometimes referred to as hibernate. Suspend to disk is useful for laptops, as it shuts down but lets you resume faster than a cold boot and at the same "place" in your apps. I like to setup to have it auto suspend to disk at 5% batt power, that way it saves me if I forget or am out of the room when critical power level is reached. ...or drunk or something like that. ;-)

[muzicman0]

Re: linux uninstall

doh! tells you how observant I am! thanks for the clarification!