What are the exact conditions based on which Linux swaps process(s) memory from RAM to a swap file?
location: linuxexchange.com - date: January 1, 1970
My server has 8Gigs of RAM and 8Gigs configured for swap file. I have memory intensive apps running. These apps have peak loads during which we find swap usage increase. Approximately 1 GIG of swap is used.
I have another server with 4Gigs of RAM and 8 Gigs of swap and similar memory intensive apps running on it. But here swap usage is very negligible. Around 100 MB.
I was wondering what are the exact conditions or a rough formula based on which Linux will do a swapout of a process memory in RAM to the swap file.
I know its based on swapiness factor. What else is it based on? Swap file size? Any pointers to Linux kernel documentation/source code explaining this will be great.
Linux: Which process is causing “device busy” when doing umount?
location: linuxexchange.com - date: March 10, 2009
Linux: Which process is causing "device busy" when doing umount?
linux: how find out which process is using a file?
location: linuxexchange.com - date: July 3, 2014
I tried to remove a file in Linux using rm -rf file_name, but got the error:
rm: file_name not removed. Text file busy.
How can I find out which process is using this file?
which process is using my memory?
location: linuxexchange.com - date: August 3, 2012
I have basically shut down all the processes but I still get 18GB used by running the "top" command:
top - 11:23:34 up 2 days, 19:20, 2 users, load average: 0.00, 0.00, 0.00
Tasks: 202 total, 1 running, 201 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 32940056k total, 19210460k used, 13729596k free, 182428k buffers
Swap: 2031608k total, 0k used, 2031608k free, 18688628k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
32326 csxbot 15 0 12760 1168 812 R 0.3 0.0 0:00.02 top
1 root 15 0 10368 700 584 S 0.0 0.0 0:02.17 init
2 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/0
3 root 34 19
Which process scheduler is my linux system using?
location: linuxexchange.com - date: April 29, 2014
I'm not quite sure if stackoverflow or serverfault is the forum to use for this question, but ill try here.
Is there some command I can use or a file I can check in order to find out which process scheduler I'm using on my Linux system? I am not looking for the I/O scheduler, but the process scheduler, and please, do not refer to guides or howtos for what a scheduler is, what I'm simply asking is if there is a command or file I can run/check to see this. I could check the doc for my kernel but again I'm just wondering if there is a command or file i can check.
I might have been a little redundant above but that's because the posts I've seen people seem to confuse process scheduler with the i/o scheduler, and they don't seem to answer the actual question, just provide links to what a scheduler is which is not what I'm after here, so apologies if the above comments sounded rude.
how to create a zombie process using linux commands?
location: ubuntuforums.com - date: April 20, 2010
I heard that zombie processes cannot be be created, it is a state of process. What is the truth linux gurus ?
How to list the process using most memory
location: linuxquestions.com - date: February 9, 2004
mem: 126060k av, 123744k used, 2316k free, 0k shrd, 52656k buff
Most of process use Mem 0.0
[SOLVED] Question about used memory without process using it
location: linuxquestions.com - date: March 15, 2011
The following is not really a desperate problem. It's just something
I'd like to understand.
On a 64 bit AMD-System, with Debian 5.0.8 and a 64bit kernel
to find process using max memory
location: linuxquestions.com - date: February 22, 2007
hi , i want to get the pid,user of process having maximum memory usage... i use top command to display list, but i need command which can give me only the highest mem using process.
Which process is using my SWAP ???
location: linuxquestions.com - date: September 28, 2006
i'm running short of memory. Don't know which process is sucking so much of memory.
Is there any way of knowing that which process is using the swap and which one using the main memory ???
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