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The Swap total given by free reflects the swap space configured on your system, which is the amount of space that the system can use on disk if the amount of RAM is insufficient. An overview on swap can be found at https://help.ubuntu.com/community/SwapFaq. In the output you posted we can see that none of the swap is actually used, which means that the ...


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As far as I know, the only aspect of memory that is not unlimited by default is locked memory (aka memlock). You can check the current limits using the bash shell built-in function ulimit e.g. $ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size ...


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I am using a pretty smooth 14.04 on my samsung nc10 plus. maybe it will help you out on 12.04 too: First of all i deactivated the effects in unity using unity tweak tool and compiz config: sudo apt-get install unity-tweak-tool compizconfig-settings-manager I also set the swap usage to a more reasonable level: open sysctl.conf gksudo gedit ...


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Nope. You need 64 bit system to access anything more than about 3.5G. I stand corrected. PAE. Well I never knew that !!


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Does Ubuntu do this out of the box? Ubuntu will automatically turn on Physical Address Extension (PAE) if it is available; otherwise it will not even install. Wikipedia, important parts (see the link for more): In computing, Physical Address Extension (PAE) is a memory management feature for the IA-32 architecture, first introduced in the Pentium ...


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I had the same problem, and was able to solve it by disabling 3D acceleration for the VirtualBox guest.


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PAE, as stated in the comments, is enabled already. You're probably using an integrated video card without dedicated memory, which is taking up some of the RAM space (1GB) to operate. From Wikipedia.com: A side effect of this is that when some RAM is allocated for graphics, it becomes effectively unavailable for anything else, so an example computer with ...


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Note that ps (on my Ubuntu 14.04.2) shows "kswapd" as: root 39 2 0 Mar23 ? 00:03:27 [kswapd0] The "[]" surrounding the process name indicates that kswapd0 is a portion of the kernel code that, for system convenience, is running as a process. kswapd not only manages swapping, it also manages the flow of memory among buffers, ...


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To see RAM in terms that your used to open a terminal and issue the command free -h - I have 2GB of ram in this system and my output is as follows for free -m (which returns results in "megabytes": $ free -m total used free shared buffers cached Mem: 2005 1816 189 259 161 935 ...


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This is because windows and linux have different understanding how much bytes have in one kilobyte. (You can read the full article explaining this here : http://www.hecticgeek.com/2012/10/for-the-same-file-why-windows-and-ubuntu-show-different-sizes/) For example … In Windows … Windows assumes that there are 1024 Bytes in a Kilobyte unit, and 1024 ...



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