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0answers
20 views

How to control when and how much Ubuntu uses swap memory?

I am running Ubuntu 14.04 guest virtual box on Windows 7 host. Recently, following instructions here, I created a 7GB swap on my Ubuntu guest which has been running super-slow on 3.6GB RAM with no ...
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1answer
84 views

minimize windows swap file usage

I know completely disabling the swapfile is not a good idea, so i'd like just to minimize its usage, so that the memory pages will be swapped only when the physical memory is completely full. I know ...
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1answer
34 views

How can I change the amount of data copied back into RAM when resuming in Linux?

Normally when I shut down my computer I hibernate. On the next boot I then resume. My problem is, that it seems that Linux just copies the least amount of data that is needed back into ram, because ...
2
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0answers
498 views

Should the CPU usage go up to 100% when swap happens on Linux

I had been running a demo system on Linux with the following kernel: 2.6.32-400.1.1.el5uek #1 SMP Mon Jun 25 20:25:08 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux And as soon as swap happens, the CPU ...
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1answer
2k views

why do i get swapping even if i set vm.swappiness to 0?

I have a couple centos 6.5 x64 servers with 64GB ram running lots of kvm vps's. some of these servers have no swap usage at all and some do. I've set swappiness to zero. However some still swap even ...
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1answer
1k views

I want to increase the swappiness in my windows 7

as I have 60% RAM usage every time. I have already increased Virtual Memory (Increased Swap Size) but want to increase swappiness too. see my RAM usage:
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6answers
18k views

Linux: don't create swap partition?

I was wondering since I heard that swap is used when you're out or RAM and and swapping too much is bad, since I have a lot of RAM ( 8GB ).... what if I dont create a swap partition? Also, do I need ...
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1answer
1k views

Disadvantages of using a swap file/partition on an SSD, even when swappiness is set to 0 [closed]

What are the disadvantages of using a swap file/partition on an SSD, even when swappiness is set to 0 I'm particularly interested in the /proc/sys/vm/swappiness=0 case. How much writes are still done,...
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2answers
956 views

changing swappiness - permission denied

I use "echo 0 > /proc/sys/vm/swappiness" to set swappiness but even if I'm root i've got access denied. Do you know what should I do to unlock it ?