01-18-2013
10 More Discussions You Might Find Interesting
1. HP-UX
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Discussion started by: alert0919
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2. AIX
How to monitor the IBM AIX server for I/O usage, memory usage, CPU usage, network usage, storage usage? (3 Replies)
Discussion started by: laknar
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3. UNIX for Advanced & Expert Users
Hi,
By using time command we can determine the execution time of a process or command.
bash-2.04$ time ls -l
total 0
-rw-r--r-- 1 admin tac 0 Oct 6 04:46 file1
-rw-r--r-- 1 admin tac 0 Oct 6 04:46 file2
real 0m0.002s
user 0m0.000s
sys 0m0.001s... (5 Replies)
Discussion started by: learn more
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4. Solaris
When i changed jvm memory settings from 3048 to 3548, appsserver could not start. if no change , it was normal. How do we change .otherwise i had a out of swap space error appeared after 3hrs period when do the monitoring of java application. (1 Reply)
Discussion started by: vijill
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5. UNIX for Advanced & Expert Users
Hi Guys,
I have a script. It calls an executable inside (programmed in C). I will have to find the execution time of that script and amount of memory consumed by that process as well.
#!/bin/sh
echo "Script starting"
echo "executable staring"
executable parm1 parm2 parm3
echo... (4 Replies)
Discussion started by: PikK45
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6. UNIX for Advanced & Expert Users
Hello,
i need just a Unix command line (AIX 6) that gives me the memory/CPU used by a WebSphere JVM from it's PID such as ps -ef | grep 'jvm name'.
I know jstat -gc PID but it didn't work
Could you help me please
Thanks
Christian (1 Reply)
Discussion started by: steiner
1 Replies
7. Solaris
Hi All,
In one of the solaris box aslert got triggered as ...
(Used_Real_Mem_Pct=93.0 Used_Swap_Space_Pct=75.0 )]
when i see the usage by vmstat and sar i am not able to relate the alert with the free memory and swap memory
please help to understand the vmstat output as below..
kthr ... (4 Replies)
Discussion started by: Riverstone
4 Replies
8. UNIX for Dummies Questions & Answers
Hi all,
I am starting a JVM in unix and when I use ps command on the pid of process starting JVM the output is something like this :-
java -Xms32M -Xmx64M -Xmx128M
I need to know what would be the value of Xmx in this case.
And how to check that this value be picked while starting JVM... (3 Replies)
Discussion started by: Raj999
3 Replies
9. UNIX for Dummies Questions & Answers
Hi ,
Whenever I am starting JVM it is getting started with Xms as 256MB, which is 1/64 of the Memory available and by default this should happen.
But I want to change and start the every JVM with 128MB.
Is there any way to do or I have to manually specify Xms tag while starting JVM.
Thanks (1 Reply)
Discussion started by: Raj999
1 Replies
10. Solaris
I have multiple oracle databases on one server. All the database are running from the same user i.e. oraent.
The process for each database can be distinguished by the ps -ef command
Eg : ps -ef | grep oraentThe Output :
oraent 5361 1 0 20:58:05 ? 0:00 oracledb1... (11 Replies)
Discussion started by: yashreads
11 Replies
LEARN ABOUT CENTOS
arping
ARPING(8) System Manager's Manual: iputils ARPING(8)
NAME
arping - send ARP REQUEST to a neighbour host
SYNOPSIS
arping [-AbDfhqUV] [-c count] [-w deadline] [-s source] -I interface destination
DESCRIPTION
Ping destination on device interface by ARP packets, using source address source.
OPTIONS
-A The same as -U, but ARP REPLY packets used instead of ARP REQUEST.
-b Send only MAC level broadcasts. Normally arping starts from sending broadcast, and switch to unicast after reply received.
-c count
Stop after sending count ARP REQUEST packets. With deadline option, arping waits for count ARP REPLY packets, until the timeout
expires.
-D Duplicate address detection mode (DAD). See RFC2131, 4.4.1. Returns 0, if DAD succeeded i.e. no replies are received
-f Finish after the first reply confirming that target is alive.
-I interface
Name of network device where to send ARP REQUEST packets.
-h Print help page and exit.
-q Quiet output. Nothing is displayed.
-s source
IP source address to use in ARP packets. If this option is absent, source address is:
o In DAD mode (with option -D) set to 0.0.0.0.
o In Unsolicited ARP mode (with options -U or -A) set to destination.
o Otherwise, it is calculated from routing tables.
-U Unsolicited ARP mode to update neighbours' ARP caches. No replies are expected.
-V Print version of the program and exit.
-w deadline
Specify a timeout, in seconds, before arping exits regardless of how many packets have been sent or received. In this case arping
does not stop after count packet are sent, it waits either for deadline expire or until count probes are answered.
SEE ALSO
ping(8), clockdiff(8), tracepath(8).
AUTHOR
arping was written by Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>. It is now maintained by YOSHIFUJI Hideaki <yoshfuji@skbuff.net>.
SECURITY
arping requires CAP_NET_RAW capability to be executed. It is not recommended to be used as set-uid root, because it allows user to modify
ARP caches of neighbour hosts.
AVAILABILITY
arping is part of iputils package and the latest versions are available in source form at http://www.skbuff.net/iputils/iputils-cur-
rent.tar.bz2.
iputils-121221 10 June 2014 ARPING(8)