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10

memtest86+ comes default with Ubuntu and you can try it from live CD or from any installation of Ubuntu. Here are the steps: While booting press (better hold down) the Shift key to bring the grub menu that looks like the following image: As you can see there are some options to choose from (this will vary from installation to insatllation), the one to ...


3

To perform a memory test on Ubuntu Live CD and Installed system. Turn On or Restart the system Hold down Shift to bring up the GRUB menu. Use the arrow keys to move to the entry labeled Ubuntu, memtest86+ Press Enter. The test will run automatically, and continue until you end it by pressing the Escape key Allow the test to run for at least one full ...


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Try with gnome-system-monitor It shows the number of amount RAM used


1

Run in the terminal: sudo dmidecode -t 16 That's what I got in my machine: # dmidecode 2.12 SMBIOS 2.7 present. Handle 0x000F, DMI type 16, 15 bytes Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: None Maximum Capacity: 32 GB Error Information Handle: No Error Number Of ...


0

The Libreboot X200 comes with Trisquel GNU/Linux pre-installed. http://shop.gluglug.org.uk/about/ Trisquel is based on Ubuntu. Trisquel 7 "LTS" is based on Ubuntu 14.04 LTS, I believe. My understanding is that Trisquel is Ubuntu with every last bit of non-Free software ripped out (plus other features like its own "...customized version of the GNOME ...


0

You can refer to thinkwiki.org, which is a great source when using Linux on Thinkpads. Especially, this page http://www.thinkwiki.org/wiki/Installing_Ubuntu_9.10_%28Karmic_Koala%29_on_a_ThinkPad_X200 seems to suggest X200 should work just fine with Ubuntu (well, it is an outdated version of Ubuntu, but newer versions should work at least as well).


0

If you don't use Evolution, you could just completely remove it, there are some instructions how to here: How do I completely remove Evolution? Here is the command: sudo apt-get --purge remove evolution evolution-exchange evolution-plugins evolution-common evolution-webcal


1

To find out if your processes have been killed by the OOM killer you can inspect the result of this command: sudo egrep -ri 'killed process' /var/log/ | grep -v auth.log If this is the case you might want to look at the article about taiming the OOM Killer. http://lwn.net/Articles/317814/


1

While I respect you intend to only ask one question, how to not load software you don't need, I perceive you to be asking two questions, the other, or primary one, how to make a computer run better with only 2gb of RAM. I would like very much to answer that question as I suspect I can help. As you probably know, by default all Ubuntu installations ...


0

I reinstalled Ubuntu on my machine. In the process, I also reset my UEFI (now using efi and secure boot instead of legacy). This fixed the problem for me. I cannot be sure what the actual problem was. But: On my old installation Windows reported less RAM, too. Therefore I guess resetting the UEFI was the solution. It seems to be a bug in the UEFI firmware ...


0

This is Computer Science 101 material. You never can have full 4 GB of RAM available, because the system will cache some memory for peripherals , such as keyboard, monitor, touchpad, etc., and there has to be some cached for kernel. It doesn't matter which OS, it's more of the way computers are built. For instance I have 6 GB (one 2GB stick and 4 GB ), but ...


2

Depending on what they are doing, Computers with large amounts of memory, such as yours, can get into difficulties when the amount of free memory (resident as opposed to swap) becomes very low. Sometimes (not sure for your situation) things can be improved by increasing the minimum amount of memory kept free, or /proc/sys/vm/min_free_kbytes. Think of it as ...


0

I could be wrong (never ran a mac myself), but your BIOS/grub setup should have no impact on your available memory. You could always check by running free -h to see your memory allotment. But it seems that if you're not running in a VM then you should have access to your full system capabilities.


3

If the processes are both launched independently, we should assume that each process would run as if no other "twin" process is started (as long as they don't need to control the same resources, e.g. files). I think this is the case for most simple programs without GUI or any need to care about multiple instances. However, the system can avoid this and ...


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Here my trick. With this command I append reports of free, vmstat and top into txt files every 5s. sudo watch -n 5 'free -mt >> free-report.txt && vmstat -S M >> vm-report.txt && top -b -n1 >> top-report.txt'



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