08-16-2011
Discrepancy in finding the top memory consuming processes
When I run 'top' command,I see the following
Memory: 32G real, 12G free, 96G swap free
Though it shows as 12G free,I am not able to account for processes that consume the rest 20G.
In my understanding some process should be consuming atleast 15-16 G but I am not able to find them.
Is there any other way?
10 More Discussions You Might Find Interesting
1. AIX
How can i find the processes that is consuming most memory? I tried TOPAS and SVMON and this didn't gave me the desired result. (1 Reply)
Discussion started by: shabu
1 Replies
2. AIX
HI All,
Can anyone send me a command to find TOP 5 Memory consuming process.
It would be lelpful if I get output something like below
processname - pid - memory(in MB) - command
I tried few commands from the internet but the result only give the real memory usage or pagging, I want total... (4 Replies)
Discussion started by: bce_groups
4 Replies
3. AIX
Okay, I am trying to come up with a multi-platform script to report top ten CPU and memory hog processes, which will be run by our enterprise monitoring application as an auto-action item when the CPU and Memory utilization gets reported as higher than a certain threshold
I use top on other... (5 Replies)
Discussion started by: thenomad
5 Replies
4. UNIX for Advanced & Expert Users
Is there some way to tell what processes are attached to a shared memory segment? We have a system on which I perform "icps -ma" and there are several segments pending deletion having numerous processes attached to them and I can't tell what processes they are. Neither the creator's pid nor last... (7 Replies)
Discussion started by: DreamWarrior
7 Replies
5. Shell Programming and Scripting
I m using following command to find top 10 cpu consuming processes.
However whenever i execute the command i get
following warning.
What can be done to avoid it?
# ps -auxf | sort -nr -k 3 | head -10
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
root ... (6 Replies)
Discussion started by: pinga123
6 Replies
6. Shell Programming and Scripting
Hi All,
O/S: Linux 86x64 Red Hat
I have a sql script that queries top consuming processes of Linux using TOP commnd.
Now I need to automate this task and pass the top processes i.e., PID to the sql script through unix shell script.
Could anyone please let me know how to achieve this.
... (2 Replies)
Discussion started by: a1_win
2 Replies
7. AIX
Hello
There are options / commands to check which process is consuming maximum memory
However is there any command/mechanism which will tell us which process was consuming maximum memory in specific time interval in the past?
I heard nmon report can help in this regard.
is there any... (5 Replies)
Discussion started by: Chetanz
5 Replies
8. UNIX for Dummies Questions & Answers
Platform: Oracle Linux 6.4
To find the most memory consuming processes, I tried the following 2 methods
1. Method1
# ps aux | head -1 ; ps aux | sort -nk +4 | tail -7
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 95 0.0 0.0 0 0 ? ... (2 Replies)
Discussion started by: kraljic
2 Replies
9. Programming
#include<stdio.h>
#include<stdlib.h>
#include<sys/time.h>
#include<time.h>
#include "rdtsc.h"
#define SIZE 4*64*1024
int main()
{
unsigned long long a,b;
int arr={0};
int i;
register int r;
a=rdtsc();
r=arr;
b=rdtsc();
printf("1st element Access Cycles = %llu\n",b-a); (2 Replies)
Discussion started by: Vaibhavs1985
2 Replies
10. UNIX for Beginners Questions & Answers
I am middle of writing health check scripts, can you pls share commands on how I can get cpu and Mem of top consuming process info at the moment?
Also can u suggest ideas on what all I can look for as a part do health check on red hat Linux server?
I searched on site before posting, but... (2 Replies)
Discussion started by: Varja
2 Replies
LEARN ABOUT DEBIAN
sys::statistics::linux::memstats
Sys::Statistics::Linux::MemStats(3pm) User Contributed Perl Documentation Sys::Statistics::Linux::MemStats(3pm)
NAME
Sys::Statistics::Linux::MemStats - Collect linux memory information.
SYNOPSIS
use Sys::Statistics::Linux::MemStats;
my $lxs = Sys::Statistics::Linux::MemStats->new;
my $stat = $lxs->get;
DESCRIPTION
Sys::Statistics::Linux::MemStats gathers memory statistics from the virtual /proc filesystem (procfs).
For more information read the documentation of the front-end module Sys::Statistics::Linux.
MEMORY INFORMATIONS
Generated by /proc/meminfo.
memused - Total size of used memory in kilobytes.
memfree - Total size of free memory in kilobytes.
memusedper - Total size of used memory in percent.
memtotal - Total size of memory in kilobytes.
buffers - Total size of buffers used from memory in kilobytes.
cached - Total size of cached memory in kilobytes.
realfree - Total size of memory is real free (memfree + buffers + cached).
realfreeper - Total size of memory is real free in percent of total memory.
swapused - Total size of swap space is used is kilobytes.
swapfree - Total size of swap space is free in kilobytes.
swapusedper - Total size of swap space is used in percent.
swaptotal - Total size of swap space in kilobytes.
swapcached - Memory that once was swapped out, is swapped back in but still also is in the swapfile.
active - Memory that has been used more recently and usually not reclaimed unless absolutely necessary.
inactive - Memory which has been less recently used and is more eligible to be reclaimed for other purposes.
On earlier kernels (2.4) Inact_dirty + Inact_laundry + Inact_clean.
The following statistics are only available by kernels from 2.6.
slab - Total size of memory in kilobytes that used by kernel for data structure allocations.
dirty - Total size of memory pages in kilobytes that waits to be written back to disk.
mapped - Total size of memory in kilbytes that is mapped by devices or libraries with mmap.
writeback - Total size of memory that was written back to disk.
committed_as - The amount of memory presently allocated on the system.
The following statistic is only available by kernels from 2.6.9.
commitlimit - Total amount of memory currently available to be allocated on the system.
METHODS
new()
Call "new()" to create a new object.
my $lxs = Sys::Statistics::Linux::MemStats->new;
It's possible to set the path to the proc filesystem.
Sys::Statistics::Linux::MemStats->new(
files => {
# This is the default
path => '/proc',
meminfo => 'meminfo',
}
);
get()
Call "get()" to get the statistics. "get()" returns the statistics as a hash reference.
my $stat = $lxs->get;
EXPORTS
No exports.
SEE ALSO
proc(5)
REPORTING BUGS
Please report all bugs to <jschulz.cpan(at)bloonix.de>.
AUTHOR
Jonny Schulz <jschulz.cpan(at)bloonix.de>.
COPYRIGHT
Copyright (c) 2006, 2007 by Jonny Schulz. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-03-09 Sys::Statistics::Linux::MemStats(3pm)