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What is Latency ? A delay in transmitting data between a computer's RAM and its processor. Since RAM is not necessarily fast compared to the computer's processor, RAM latency can occur, causing a delay between the time a computer's hardware recognizes the need for a RAM access (initiates a request for data) and the time the data or instruction is ...


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Use the lshw command with the memory class: $ sudo lshw -C memory # Some things about firmware and caches *-memory description: System Memory physical id: 13 slot: System board or motherboard size: 8GiB *-bank:0 description: DIMM [empty] product: [Empty] vendor: [Empty] physical ...


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a) At startup, the BIOS counts the number of working RAM-bytes, but EXCLUDES the ram-bank used for the test. That difference is fully normal. -- b) Any faulty RAM-bank is neither used nor counted. In that case, the computer can still be used for non-important jobs.


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The only way to make use of the two computers in your situation is to have a programm that is intended to run on multiple separate computers, and run that on both computers. It is true that there are general solutions to distribute computing work to multiple computers, but if that would make sense in your situation, you would know it already, I'm sure. So ...


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I know this question is old, but I had this problem in Ubuntu (Chrubuntu) 14.04 on an Acer C720 Chromebook. I tried Krišjānis Nesenbergs solution, and it worked somewhat, but still crashed sometimes. I finally found a solution that worked by installing zram instead of using physical swap on the SSD. To install it I just followed the instructions here, like ...


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I think this can be done using cgroups: Create a cgroup named mpigroup (or whatever name you choose) with a memory limit (of 50GB, for example): cgcreate -g memory,cpu:mpigroup cgset -r memory.limit_in_bytes=$((50*1024*1024*1024)) mpigroup Then, if mpiexec is already running, bring it into this cgroup: cgclassify -g memory,cpu:mpigroup $(pidof mpiexec) ...


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I am fortunate enough to have 32 GB of the stuff, so I give it up to 10 or (once) 18, but my host is permanently using 10GB because I use both. I would advise you go for 1500MB, as that should run reasonably well. You might find it runs smoother (even in the VB) if you use an alternative Desktop Environment (DE) such as XFCE or similar. I sometimes switch ...


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Thank you very much for your help Ben, it's much appreciated. After trying multiple methods, most of which resulted in an unbootable computer and an Ubuntu reinstall, I came across something. From what I can tell the line of graphics card that I use (AMD Radeon HD 4000 series) doesn´t have any supported drivers. Section 6.1.1.1 and 6.2.1 of the link ben ...


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Well, i found the culprit...to other users, do not buying two modules of RAM with different brand. So this is solving by buying 2 of the same brand, same specs, of 4gb, now i have 8. Thank you for commented on the answer.


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There's a very good detailed explanation here: https://blogs.kde.org/2005/09/15/measuring-memory-usage But essentially: You have to really dig in and understand how the application is set up. So for example, looking at mysql: PID PPID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...


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I was Looking at you laptops support sheet on the Toshiba Website: http://www.toshiba.com/us/computers/laptops/satellite/L650/L655D-S5066 Under Performance and Graphics Memory I See this: GRAPHICS MEMORY* 256MB-1917MB dynamically allocated shared graphics memory I just subtracted the 1917 from your swap size and it gave me the memory amount of what your ...


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Are you sure that the RAM modules are compatible with the motherboard of your computer? Have you stuck to the process for adding RAM modules described in the manual of your computer model? Apart from what is told in the manual, you must unplug any AGP graphic card you have in the computer before adding the new modules. The reason is the connection between ...


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Computers calculate numbers in base 2 (binary). The closest a computer can get to 1000 is 1024. Manufacturers quote sizes in base 10, so from the manufacturer's point of view a 500GB drive is 500 * 1000 * 1000 * 1000 = 500000000000 bytes. Nice round figures. From the computer's perspective, the same figure is 500 * 1024 * 1024 * 1024 = 536870912000 bytes. ...


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Well, after some research i've found that some parameters in a cgroup can not be modified when there are tasks on it. Sadly, the memory limit parameters are one of those kind of parameters. I think my last option is to use the task migration feature and create cgroups with new memory limits on demand.



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