i'm having some performance problem on one of my linux machines and i hope someone will be able to help me analyzing the problem.
machine info:
Linux fedora, cpu x 4 cores of 1.6Ghz, 8G memory, 8G swap.
i've enabled sar on my machine and created a graph using ksar utility for the last week.
the sar -A command actually monitored everything on my machine.
now, i'm trying to understand what was the problem
my problem was that on 2 days at that week my application hanges and we had to restart the machine in order to solve this.
now, i'm trying to understand its its i/o problem due which related to my disk, or perhaps memory problem.
the problem occured at 15:00PM on one of the days i've monitored. i will write down the resluts:
i hope it was clear
i can see there is not enough memory cause he used almost all the memory, and the runq-sz is high so a lot of process running/waiting to run i think, so perhaps it might indicate the problem?
please help...
10x
Last edited by Scott; 01-31-2010 at 08:26 AM..
Reason: Please use code tags
hi,
can any one tell me, is there is any way i can check the performance of my solaris 8 os on an Ent 3500. Other than top to check for the top most processes, how to make the calculations with vmstat, iostat, mpstat and nfsstat. Or is there any other tools that i can use?
cheers. (3 Replies)
Hi All
I am looking for a script that would collect statistics in a summarised format.
CPU, Memory,Swap, Wait queue, Run queue and disk activity.
Something that would allow me to profile the environment based on a 1 line output that I could run every 15 min.
Thx
Junaid (1 Reply)
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Hi all,
-------------------------
Linux OS Version/Release:
-------------------------
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Linux <hostname> 2.6.18-194.8.1.el5 #1 SMP Wed Jun 23 10:52:51 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
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Discussion started by: newbie_01
1 Replies
LEARN ABOUT LINUX
ipcs
IPCS(1) Linux Programmer's Manual IPCS(1)NAME
ipcs - provide information on ipc facilities
SYNOPSIS
ipcs [-asmq] [-tclup]
ipcs [-smq] -i id
ipcs -h
DESCRIPTION
ipcs provides information on the ipc facilities for which the calling process has read access.
The -i option allows a specific resource id to be specified. Only information on this id will be printed.
Resources may be specified as follows:
-m shared memory segments
-q message queues
-s semaphore arrays
-a all (this is the default)
The output format may be specified as follows:
-t time
-p pid
-c creator
-l limits
-u summary
SEE ALSO ipcrm(1), ipcmk(1)CONFORMING TO
The Linux ipcs utility is not fully compatible to the POSIX ipcs utility. The Linux version does not support the -b and -o options, but
does support the -l and -u options not defined by POSIX. The portable application shall not use the -a, -b, -o, -l, and -u options.
AUTHOR
krishna balasubramanian (balasub@cis.ohio-state.edu)
AVAILABILITY
The ipcs command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
Linux 0.99 9 October 1993 IPCS(1)
01-31-2010
