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Know how much swap is used by each process on Linux

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http://stackoverflow.com – I use the following script (from this blog http://northernmost.org/blog/find-out-what-is-using-your-swap) to know for each process how much swap it is using #!/bin/bash # Get current swap usage for all running processes # Erik Ljungstrom 27/05/2011 SUM=0 OVERALL=0 for DIR in `find /proc/ -maxdepth 1 -type d | egrep "^/proc/[0-9]"` ; do PID=`echo $DIR | cut -d / -f 3` PROGNAME=`ps -p $PID -o comm --no-headers` for SWAP in `grep Swap $DIR/smaps 2>/dev/null| awk '{ print $2 }'` do let SUM=$SUM+$SWAP done echo "PID=$PID - Swap used: $SUM - ($PROGNAME )" let OVERALL=$OVERALL+$SUM SUM=0 done ec (HowTos)

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Submitted by dadebian on 02/26/2013

Stories similar to Know how much swap is used by each process on Linux

Have you ever logged in to a server, ran `free`, seen that a bit of swap is used and wondered what’s in there? It’s usually not very indicative of anything, or even overly helpful knowing what’s in there, mostly it’s a curiosity thing.

I am using top to monitor my server. The swap row reads

Swap: 1044220k total, 0k used, 1044220k free, 148544k cached

I have hit O p to sort by swap.

Hi All,

I have a RAM of around 11 gig and swap of around 18 G in my Linux Server.

But at some times , I find that All the RAM and 5 gig of swap is used in server...and i also got some advice from our discussion forums to increase the RAM .

But nowadays what happens is the all the RAM and all the swap are used and there are no free memory left in both ....so the system is performing very slow

For me swap is useful: I have 3gb ram and 2gb swap (OCZ SSD),I can still use the system with a bit of lag with the swap almost full (fiefox opera with a lot of tabs,amule,thunderbird,amsn etc... with many days of uptime). HD swap would be deadly slow instead.

Xemertix https://bbs.archlinux.org/profile.php?id=24759

2012-07-01T13:28:04Z

I have 4gb ddr2 and 4gb swap and the ram never fills up and the OS gets into the swap and really slows things down.

I have ordered 8gb ddr3. What happens if I get rid of the swap partition?

Attached Images

swapthrashing.png (70.3 KB)

Hi.

On one of my servers the "free" command tells me that a lot of swap space are in use. What I'd like to do is to determine which processes have been swapped out.

Hi,

I have a code that uses a lot of memory (over 50 GB) and my RAM (16 GB) and current swap space (32 GB) are not enough. Is there way to increase the swap partition size without having to reformat the drive? I also heard you can use swap files (I have no idea how to do that), and can you have huge swap file >20 GB ? Thanks in advance

[SOLVED] I broke my swap! 14 weeks 6 days ago

Hi all. It's been a while since I've been here. I just installed F18 LXDE, and so far, so good until just now.

I don't have much experience with lvm, but was trying. I reduced the lv for swap, which worked well, but now the swap is gone from fstab.

How do I disable swap? 27 weeks 4 days ago

I have some sensitive data in ram that i prefer not to be on disk. How do i disable swap? I have more then enough ram. If ram gets too high i have no problems with processes being terminated. How do I disable swap?

Note: I do not have a swap partition and this is running in a VM (VMWare)