I having problem with my linux machine
it have 6Gb physical memory and somehow it always almost coming to the bottom neck and than it start writing to the swap memory
you can see that there is more than 4G in cahce, is there any way to clean the cache or to limit it to 2Gb?
Can anyone tell me why its a bad idea to have rootvg span multiple physical drives
i.e.
hdisk0 00014861356a3c77 rootvg
hdisk1 0001486111354c7c rootvg
hdisk2 00014861fcef6a5d rootvg
hdisk3 none None
thanks (1 Reply)
Hi All,
We are using the linux servers and need to track the memory utilization of the box. Could anyone advice how the same can be achived.
:) (1 Reply)
I need help, how to set traffic management on the ubuntu server with the real life situation.
For example, I would like to set the lowest priority or the "Best-Effort Traffic" for the ports in the range from 35000-37000 only on the TX(transmit) and I would like that same port range has... (1 Reply)
Hello,
I need help with creating Managment Resource Role on HMC v7. I can assignee whole machine to new role but I can't do this with single LPAR. I can't even open list of LPARs, i can see only list of machines connected to this HMC. Do you know how I can solved this problem. I have to create... (3 Replies)
Hello, I am using Linux os.
$ df -k /dev/shm
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 2023256 1065000 958256 53% /dev/shm
$
Based on my google this, it is shared memory. What is this shared memory and where exactly it is used? Can you... (5 Replies)
Hi guys.
I have configured Vsftpd with virtual users using Berkley DB. it is running fine. But how can we implement disk quotas for virtual users? (1 Reply)
Hi gurus,
Please advice me in case such a process is taking too much of memory what are the necessary steps we need to do. Please explain with detailed.
Thanks | P.Bharathiraja:confused: (3 Replies)
Hello Folks
so i have a question,
we have about 1000 linux machines in our org and would like to be able to manage all of them,
what type of software would i use, any suggestions?
i heard of puppet,
what else do we have available? (1 Reply)
Hi Experts,
I have question regarding linux cluster managment on Red Hat 5.x server. When I try to install 'luci' or 'ricci' in one of our linux servers it is giving me below error:-
yum install luci
Loaded plugins: katello, product-id, rhnplugin, security, subscription-manager
Updating... (0 Replies)
Discussion started by: Amey Joshi
0 Replies
LEARN ABOUT CENTOS
free
FREE(1) User Commands FREE(1)NAME
free - Display amount of free and used memory in the system
SYNOPSIS
free [options]
DESCRIPTION
free displays the total amount of free and used physical and swap memory in the system, as well as the buffers and caches used by the ker-
nel. The information is gathered by parsing /proc/meminfo. The displayed columns are:
total Total installed memory (MemTotal and SwapTotal in /proc/meminfo)
used Used memory (calculated as total - free)
free Unused memory (MemFree and SwapFree in /proc/meminfo)
shared Memory used (mostly) by tmpfs (Shmem in /proc/meminfo, available on kernels 2.6.32, displayed as zero if not available)
buffers
Memory used by kernel buffers (Buffers in /proc/meminfo)
cached Memory used by the page cache (calculated as Cached - Shmem in /proc/meminfo - the Cached value is actually the sum of page cache
and tmpfs memory)
OPTIONS -b, --bytes
Display the amount of memory in bytes.
-k, --kilo
Display the amount of memory in kilobytes. This is the default.
-m, --mega
Display the amount of memory in megabytes.
-g, --giga
Display the amount of memory in gigabytes.
--tera Display the amount of memory in terabytes.
-h, --human
Show all output fields automatically scaled to shortest three digit unit and display the units of print out. Following units are
used.
B = bytes
K = kilos
M = megas
G = gigas
T = teras
If unit is missing, and you have petabyte of RAM or swap, the number is in terabytes and columns might not be aligned with header.
-c, --count count
Display the result count times. Requires the -s option.
-l, --lohi
Show detailed low and high memory statistics.
-o, --old
Display the output in old format, the only difference being this option will disable the display of the "buffer adjusted" line.
-s, --seconds seconds
Continuously display the result delay seconds apart. You may actually specify any floating point number for delay, usleep(3) is
used for microsecond resolution delay times.
--si Use power of 1000 not 1024.
-t, --total
Display a line showing the column totals.
--help Print help.
-V, --version
Display version information.
FILES
/proc/meminfo
memory information
SEE ALSO ps(1), slabtop(1), top(1), vmstat(8).
AUTHORS
Written by Brian Edmonds.
REPORTING BUGS
Please send bug reports to <procps@freelists.org>
procps-ng September 2011 FREE(1)