how can i do that in a script withough havin the script halt at the section where the top command is located. am writign a script that will send me the out put of unx commands if the load average of a machine goes beyond the recommended number.
top -n 20
i want to save this output to a file... (1 Reply)
I am using the Red Hat Enterprise Linux AS release 3 (Taroon), 2.4.21-4.EL. When I see the output of the command 'top'. I am getting the following
************************************************************************************
2 processes: 227 sleeping, 5 running, 0 zombie, 0 stopped... (3 Replies)
hi,
i want to know cpu utilizatiion per process per cpu..for single processor also if multicore in linux ..to use these values in shell script to kill processes exceeding cpu utilization.ps (pcpu) command does not give exact values..top does not give persistant values..psstat,vmstat..does njot... (3 Replies)
I'm using top to view processes. But, I do not know how to scroll down the list to view what is not showed in the terminal window. Anyone know how to do this? (1 Reply)
Hi all,
I found like top command could be used to find the Memory and CPU utilization. But i want to know how to find the Memory and CPU utilization for a particular user using top command.
Thanks in advance.
Thanks,
Ananthi.U (2 Replies)
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)
Hi all,
Is it possible to get total memory usage and free memory usage without top? By Googling I found for total memory usage, use vmstat, for CPU, use mpstat, for disk I/O use iostat, is this correct? Will using sar gives the same result as ALL of these three (3) commands?
What about if I... (2 Replies)
ps -eo pid,comm,%cpu lists all processes (in increasing PID number).
How to get only the top-10 most CPU intensive ones? I know about top: this is BASH exercise.
I tried redirecting above code to cut ps -eo pid,comm,%cpu | cut -f2but ps' output isn't TAB delimited. How can I otherwise use... (5 Replies)
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... (1 Reply)
Hi All,
I am new to Scripting , please give me guidance to write the script to see top processes on the Linux operating system.
I executed this script on my Virtual Server(Linux)
DATE=`date +%Y%m%d%H%M%S`
HOME=/home/xmp/testing/xmp_report
RADIUS_PID=`xms -xmp sh pr | grep... (2 Replies)
Discussion started by: madala
2 Replies
LEARN ABOUT REDHAT
vmstat
VMSTAT(8) Linux Administrator's Manual VMSTAT(8)NAME
vmstat - Report virtual memory statistics
SYNOPSIS
vmstat [-n] [delay [ count]]
vmstat[-V]
DESCRIPTION
vmstat reports information about processes, memory, paging, block IO, traps, and cpu activity.
The first report produced gives averages since the last reboot. Additional reports give information on a sampling period of length delay.
The process and memory reports are instantaneous in either case.
Options
The -n switch causes the header to be displayed only once rather than periodically.
delay is the delay between updates in seconds. If no delay is specified, only one report is printed with the average values since boot.
count is the number of updates. If no count is specified and delay is defined, count defaults to infinity.
The -V switch results in displaying version information.
FIELD DESCRIPTIONS
Procs
r: The number of processes waiting for run time.
b: The number of processes in uninterruptable sleep.
w: The number of processes swapped out but otherwise runnable. This
field is calculated, but Linux never desperation swaps.
Memory
swpd: the amount of virtual memory used (kB).
free: the amount of idle memory (kB).
buff: the amount of memory used as buffers (kB).
Swap
si: Amount of memory swapped in from disk (kB/s).
so: Amount of memory swapped to disk (kB/s).
IO
bi: Blocks sent to a block device (blocks/s).
bo: Blocks received from a block device (blocks/s).
System
in: The number of interrupts per second, including the clock.
cs: The number of context switches per second.
CPU
These are percentages of total CPU time.
us: user time
sy: system time
id: idle time
NOTES
vmstat does not require special permissions.
These reports are intended to help identify system bottlenecks. Linux vmstat does not count itself as a running process.
All linux blocks are currently 1k, except for CD-ROM blocks which are 2k.
FILES
/proc/meminfo
/proc/stat
/proc/*/stat
SEE ALSO ps(1), top(1), free(1)BUGS
Does not tabulate the block io per device or count the number of system calls.
AUTHOR
Written by Henry Ware <al172@yfn.ysu.edu>.
Throatwobbler Ginkgo Labs 27 July 1994 VMSTAT(8)