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List processes using my memory

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# 1  
Old 05-04-2016
Error List processes using my memory
Here is the output of top command
Quote:
bash-3.2$ top
top - 15:32:47 up 10 days, 17:27, 12 users, load average: 9.11, 9.92, 9.86
Tasks: 495 total, 1 running, 494 sleeping, 0 stopped, 0 zombie
Cpu(s): 14.8%us, 0.3%sy, 0.1%ni, 84.7%id, 0.1%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 66005468k total, 65662548k used, 342920k free, 1009500k buffers
Swap: 33551744k total, 292k used, 33551452k free, 41199488k cached
So you see 99% of memory is in use -> Mem: 66005468k total, 65662548k used,

How can I find out all processes consuming this 99% memory in descending order of consumption i.e. starting with processes eating more memory.

I need the total of the output to match 99% as seen in the top command.

Note: I do not have root access.

OS:
Code:
bash-3.2$ uname -a
Linux myserver 2.6.18-409.el5 #1 SMP Fri Feb 12 06:37:28 EST 2016 x86_64 x86_64 x86_64 GNU/Linux

Also can I can get the output in the form of percentage of total memory consumption and the value of memory being consumed ?
Last edited by rbatte1; 05-07-2016 at 05:21 PM.. Reason: Corrected spelling and changed one set of ICODE tags to CODE tags for clarity
# 2  
Old 05-04-2016
Notice how little swap you're using -- you're not struggling with low memory.

Where's it all going, then?

Code:
41199488k cached

...which counts as free for your purposes.
# 3  
Old 05-05-2016
Quote:
Originally Posted by Corona688
Notice how little swap you're using -- you're not struggling with low memory.

Where's it all going, then?

Code:
41199488k cached

...which counts as free for your purposes.
Dont know why i m not able to start a java process and i get this error regarding memory.

Code:
Java HotSpot(TM) 64-Bit Server VM warning: Failed to reserve shared memory (errno = 12).
ERROR: transport error 202: bind failed: Address already in use
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [../../../src/share/back/debugInit.c:690]
FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197)
<May 5, 2016 1:26:25 AM> <FINEST> <NodeManager> <Waiting for the process to die: 26500>
<May 5, 2016 1:26:25 AM> <INFO> <NodeManager> <Server failed during startup so will not be restarted>

Shouldn't it empty the cache automatically and assign some memory to my process ?

Should i empty the cache ? If yes, How can i do that ?

Will it help me resolve my issue because i am not able to start any java processes on this system.

Any drawback or issues with release the 41199488k cached
Last edited by mohtashims; 05-05-2016 at 02:34 AM..
# 4  
Old 05-05-2016
Quote:
Any drawback or issues with release the 41199488k cached
Problem #1: It does not need releasing. It releases itself. That's why you have nearly no swap used, you're not out of memory.
Problem #2: Forcing it from 'cache' into 'free' will decrease performance for no benefit.
Problem #3: It is unlikely to solve any of your problems.

"unable to allocate shared memory" is not the same thing as "out of memory"; On Linux, that likely refers to a ramdisk residing in /dev/shm whose maximum capacity -- and what it's willing to give it to -- depends on your system settings. What's the status of /dev/shm on your system (df -h ) ?
Last edited by Corona688; 05-05-2016 at 12:44 PM..
This User Gave Thanks to Corona688 For This Post:
rbatte1
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