My server virtual memory full

occasionally my server hits 100% usage on virtual memory and I don’t know if that is something alarming or not? ( this happends gradualy to fill to that percent over 1-2 weeks from clean swap) I usually resolve this issue like this: swapoff -a && swapon -a do you suggest any other method of resolving … Read more

Does swap on 32-bit OS with 4 GB make sense? [closed]

Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Server Fault. Closed 7 years ago. Improve this question Does having swap space makes sense if I have a 32 bit OS (Linux) and 4 GB RAM already? As it would have … Read more

how to check how much memory take process

As all know in Linux machines we have RAM memory and swap memory. My first question is: What the reason that the swap memory is increasing – because high level of RAM usage or something else? Second – is it possible to verify how much memory a process holds? Example from top command: Is it … Read more

Moving Processes to and from Swap [closed]

Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 2 years ago. Improve this question Referring to Moving a process to and from swap and other answers which talk about moving … Read more

Improve LAMP performance Ubuntu 12.0.4 [closed]

Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 7 years ago. Improve this question cpu 1.3% mem 476/490MB swap 347/511mb tasks: 43, 29 thr; 1 running load average: 0.10 … Read more

Increasing swap on RAM-limited VPS used for calculations [closed]

Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Server Fault. Closed 6 years ago. Improve this question I’m using a VPS for some computationally heavy tasks but not to host a publicly-facing website. The author of the application I’m using … Read more

Linux makes cache for swap. what for?

It looks like joke: swapfile on “ramdysk” in 64bits system? I look into file: /proc/meminfo and made some investigation. Look for line: SwapCached: nnnnn kB . One is what I don’t understand. What for linux kernel caches swap? What for caching this? Isn’t better idea leaving page as active? Another, what is difference between swapping … Read more

Volatile Linux with a huge tmpfs and swap partition

I want to deploy Linux on user computers in a way state is never preserved between boots (except state saved explicitly by users on external removable devices). System image will be stored on a read-only removable media and possibly network. All my target computers have SSDs installed. It will be a waste to do not … Read more