Physicsal/swap Memory Information
Baird, Josh
jbaird at follett.com
Mon Aug 18 13:45:23 CDT 2008
The missing memory you are referring to (I think?) is more than likely being
used by kernel processes. More detailed memory statistics can be obtain by
using tools such as vmstat and looking at the contents of /proc/meminfo.
Thanks,
Josh
From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of ammad shah
Sent: Monday, August 18, 2008 1:39 PM
To: linux-poweredge at dell.com
Subject: Physicsal/swap Memory Information
Hi,
I would like to ask the forum, (again) about Memory utilization. ...from
which tool i will be able to get information of current max utilization of
Memory.
the output of "top" with "M" is
top - 00:16:37 up 6 days, 24 min, 1 user, load average: 0.00, 0.19, 0.45
Tasks: 113 total, 1 running, 112 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
Mem: 10231008k total, 10196572k used, 34436k free, 11884k buffers
Swap: 6289408k total, 160k used, 6289248k free, 9963308k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
28706 mysql 16 0 408m 93m 3876 S 0.0 0.9 222:51.96 mysqld
2947 root 16 0 21600 9084 1588 S 0.0 0.1 0:01.02 hald
30958 root 16 0 37108 2696 2100 S 0.0 0.0 0:00.01 sshd
2890 root 16 0 21944 2072 1628 S 0.0 0.0 0:00.44 sshd
30960 root 15 0 53988 1628 1216 S 0.0 0.0 0:00.01 bash
28507 root 16 0 53844 1328 1096 S 0.0 0.0 0:00.02 mysqld_safe
2934 dbus 16 0 9672 1240 1072 S 0.0 0.0 0:00.05 dbus-daemon-1
2915 root 16 0 57112 1180 744 S 0.0 0.0 0:00.16 crond
5211 root 16 0 19852 1084 880 S 0.0 0.0 0:00.00 rpc.idmapd
31041 root 16 0 6144 1020 772 R 0.3 0.0 0:00.01 top
9806 root 17 0 8016 976 780 S 0.0 0.0 0:00.00 rpc.mountd
9789 root 18 0 53208 768 648 S 0.0 0.0 0:00.00 rpc.rquotad
9858 rpc 16 0 4744 680 556 S 0.0 0.0 0:00.00 portmap
2737 root 16 0 3624 612 496 S 0.0 0.0 0:00.26 syslogd
1 root 16 0 4748 548 456 S 0.0 0.0 0:00.73 init
2851 root 20 0 2536 536 452 S 0.0 0.0 0:00.00 acpid
2904 root 16 0 4172 532 452 S 0.0 0.0 0:00.00 gpm
2752 root 16 0 2528 492 404 S 0.0 0.0 0:00.01 irqbalance
2741 root 15 0 2532 484 404 S 0.0 0.0 0:00.00 klogd
1232 root 6 -10 3600 452 360 S 0.0 0.0 0:00.01 udevd
2956 root 16 0 2516 404 340 S 0.0 0.0 0:00.00 mingetty
2957 root 18 0 2516 404 340 S 0.0 0.0 0:00.00 mingetty
2958 root 18 0 2516 404 340 S 0.0 0.0 0:00.00 mingetty
2959 root 18 0 2516 404 340 S 0.0 0.0 0:00.00 mingetty
2960 root 22 0 2516 404 340 S 0.0 0.0 0:00.00 mingetty
2961 root 17 0 2516 404 340 S 0.0 0.0 0:00.00 mingetty
2 root RT 0 0 0 0 S 0.0 0.0 0:00.02 migration/0
3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/1
5 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1
6 root RT 0 0 0 0 S 0.0 0.0 0:00.01 migration/2
7 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/2
as you people can see that top utilization of mysql is "93 M" where as the
output of "free -m" is
# free -m
total used free shared buffers cached
Mem: 9991 9958 33 0 12 9729
-/+ buffers/cache: 215 9775
Swap: 6142 0 6141
where is remaining memory ???????????????.
while i can see the utilization in "GUI" task manger tools .......
any idea. .........
thanks
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