I have VPS. It has Burstable memory service. My guaranteed memory limit is 1GB. I want linux not to take more that 1GB to programs on OS level. How to do it? It is ubuntu server. Asked by Zango I don’t believe this is possible. If this were possible, it would require kernel tweaks, which isn’t an option in your case due to the fact that you’re running an OpenVZ and as such, don’t have [...]

My server seized up. It was virtually unusable. This seemed like a likely culprit: root 1037 0.0 92.6 1455696 958368 ? Ssl 2012 3:57 /usr/sbin/nscd That’s 92% RAM. I killed it to get my server operational again. Given that I have now killed the process, what post-mortem diagnostics can I do to see what the cause was? top occasionally showed high wa values, which might suggest there might be something up with a file or [...]

What are the minimal memory usage for Windows 2008 & 2012 server editions? I’m referring to all things OS-related. The machine would be a VM with a dedicated web server software, that wouldn’t rely on the OS (ie. no IIS, no domains, minimal local database) and wouldn’t use much memory (less than 50 MB), though CPU usage might occasionnally spike under load. I’m asking because there are options for hosting where you’re charged by the [...]

I have an Acer EasyStore with a RAID5 mdraid array I use for storing my home files (photos, movies, etc), and I want to migrate it to ZFS with Ubuntu (the native kernel module from zfsonlinux.org). I hear that ZFS needs a lot of RAM, but the EasyStore only has 2 GB. The RAIDZ will be three 1.5GB disks, and I’m wondering if ZFS won’t work with 2 GB of RAM. What problems, if any, [...]

I’m the proud new owner of an HP Proliant Microserver N40L, and planning to upgrade the paltry 2 GB of memory to the maximum of 16 GB. (Theoretically 8 GB is the limit, but empirically 16 GB has been shown to work.) Some guides advise that ECC memory is not that important, but I’m not so sure I believe this. I’ve installed FreeNAS and am planning to add ZFS volumes as soon as my new [...]

If My process allocates some big memory and then deallocates, would top or gnome-system-monitor show that my memory usage of that process decreased ? or kernel will still reserve that memory for that process ? What I see is I am deallocating memory. But I still see gnome-system-monitor displaying growing memory for my program. I don’t find memory leak in my end. I want to know whether its not displaying released memory ? or there [...]

Possible Duplicate: Understanding virtual memory usage > swap + physical on Linux We have the following process: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 10684 root 8 -15 89.6g 13g 1.1g S 406.9 21.8 316:34.89 java Is this amount of virtual memory ok, assuming the fact that we have only 64GB of RAM. Also here is the info about the physical memory: Mem: 65995412k total, 64967388k used, 1028024k free, 3976288k [...]

Why on Unix/Linux OS machines are showing less memory (RAM) than it is? Let say i have Ubuntu machine whose have 1024 MB ram, when i open “System Monitor” “Resources” tab it shows 1001.2 MB. How i can get all RAM from Unix/Linux machines? link doesn’t help -http://serverfault.com/questions/9442/why-does-red-hat-linux-report-less-free-memory-on-the-system-than-is-actually-av Asked by krapstuke You have provided a very vague sentence but i’ll do my best. You likely have an integrated graphics card. A portion of the ram [...]

I have a weird kind of problem. I host a small webshop, it´s nothing big perhaps 20 visitors per day and a few orders per week. I will probably expand it a bit but I doubt it will grow very large. Anyway, my problem is that I came across a VPS with about 6gb ram and 6 cores really cheap. And now I have this VPS with much more power than I really ever will [...]

I have a small VPS with 6GB RAM hosting a couple of websites. Recently I have noticed that my cached memory size is quite high – see below: Cpu(s): 0.1%us, 0.1%sy, 0.0%ni, 99.1%id, 0.0%wa, 0.2%hi, 0.4%si, 0.0%st Mem: 6113256k total, 5949620k used, 163636k free, 398584k buffers Swap: 1048564k total, 104k used, 1048460k free, 3586468k cached After investigating if there is some method to have this flushed or cleared I stumbled upon a command which is: [...]