From my output
Does it mean 75% of my CPU is idling,while user's process are taking 3.9% and system processing at taking up 20.5% of the CPU's resources?
i'm a relative newbie to unix (i'm on OSX) and i have a specific problem i'm tripped up on:
i'm piping the output of top (in log format) into an awk command which formats the information (and eventually will send it out continuously via udp/osc to another app). my problem is with what comes up... (4 Replies)
#!/bin/sh
echo `date +%F:%T` >> top.out
echo `top -n1` >> top.out
Hi all, i am trying to capture the output of the 'top' command in linux.
when i run the command manually, it works.
However, when i run it as a cronjob,the 'top' output is not being printed to the file,only the date is... (1 Reply)
Hey guys,
I'm trying to merge the output from the ps and top commands; since I need the full command used (only showed in the ps), and the cpu usage with some decimal numbers (i.e.: 0.05%, only showed in top).
After exporting to different files, I was thinking of doing an egrep with the... (0 Replies)
Hi all, I'd like to capture the output from the 'top' command to monitor my CPU and Mem utilisation.Currently my command isecho date
`top -b -n1 | grep -e Cpu -e Mem` I get the output in 3 separate lines.Tue Feb 24 15:00:03
Cpu(s): 3.4% us, 8.5% sy .. ..
Mem: 1011480k total, 226928k used, ....... (4 Replies)
Hi,
I have a system under test, and I use a script that does a ps.
The output, is in the following format, it's basically the timestamp, followed by the rss and vsize.
09:03:57 68404 183656 68312 181944 69860 217360 67536 182564 69072 183172 69032 199276
09:04:27 68752 183292 70000 189020... (5 Replies)
Hi,
I've installed SMCtop on to a Solaris 9 sparc server and I am trying to capture the output of top to a file without success. The version of top I have installed is top-3.6.1-sol9-sparc-local.gz. All my attempts are below.
# /usr/local/bin/top -d 5 -f /tmp/top.out... (3 Replies)
ok, so I have a script im running on a linux box that uses "egrep" a lot. now, when i run this script, i check the TOP to see how much system resource it is using.
the "top" command gives the following output:
last pid: 25384; load avg: 1.06, 1.04, 0.76; up 351+06:30:24 ... (0 Replies)
Solaris experts,
Am struggling, and wondering for the past more than one week that, how to calculate the total available and used memory/swap space.
Finally installed and used top & got some understanding, but while cross-checking, there are mismatches.
Main Memory
top o/p - 2GB... (7 Replies)
Guys can you help me fix this parse error.
Here's my script.
#!/bin/bash
# Set up limit below
NOTIFY="6.0% us 6.1% us 6.2% us 6.3% us 6.5% us 6.6% us 6.7% us 6.8% us 6.9% us 7.0% us"
# CPU Usage every minute
TOP="$(top -b -n2 -d 00.20 |grep Cpu|tail -1 | awk -F ":" '{ print $2 }' | cut... (3 Replies)
Hi ,
i am trying to set up an alert, when CPU usage (0.2%us in below output) is more than 40%
top | head | grep '^Cpu'
Cpu(s): 0.2%us, 0.2%sy, 0.0%ni, 99.1%id, 0.6%wa, 0.0%hi, 0.0%si, 0.0%st
using CUT, i pulled the value 0.2 and assigned to CPU (variable)
CPU=$(expr `top | head -10... (5 Replies)
Discussion started by: Prateek007
5 Replies
LEARN ABOUT X11R4
taskset
TASKSET(1) User Commands TASKSET(1)NAME
taskset - set or retrieve a process's CPU affinity
SYNOPSIS
taskset [options] mask command [argument...]
taskset [options] -p [mask] pid
DESCRIPTION
taskset is used to set or retrieve the CPU affinity of a running process given its pid, or to launch a new command with a given CPU affin-
ity. CPU affinity is a scheduler property that "bonds" a process to a given set of CPUs on the system. The Linux scheduler will honor the
given CPU affinity and the process will not run on any other CPUs. Note that the Linux scheduler also supports natural CPU affinity: the
scheduler attempts to keep processes on the same CPU as long as practical for performance reasons. Therefore, forcing a specific CPU
affinity is useful only in certain applications.
The CPU affinity is represented as a bitmask, with the lowest order bit corresponding to the first logical CPU and the highest order bit
corresponding to the last logical CPU. Not all CPUs may exist on a given system but a mask may specify more CPUs than are present. A
retrieved mask will reflect only the bits that correspond to CPUs physically on the system. If an invalid mask is given (i.e., one that
corresponds to no valid CPUs on the current system) an error is returned. The masks may be specified in hexadecimal (with or without a
leading "0x"), or as a CPU list with the --cpu-list option. For example,
0x00000001 is processor #0,
0x00000003 is processors #0 and #1,
0xFFFFFFFF is processors #0 through #31,
32 is processors #1, #4, and #5,
--cpu-list 0-2,6
is processors #0, #1, #2, and #6.
When taskset returns, it is guaranteed that the given program has been scheduled to a legal CPU.
OPTIONS -a, --all-tasks
Set or retrieve the CPU affinity of all the tasks (threads) for a given PID.
-c, --cpu-list
Interpret mask as numerical list of processors instead of a bitmask. Numbers are separated by commas and may include ranges. For
example: 0,5,8-11.
-p, --pid
Operate on an existing PID and do not launch a new task.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
USAGE
The default behavior is to run a new command with a given affinity mask:
taskset mask command [arguments]
You can also retrieve the CPU affinity of an existing task:
taskset -p pid
Or set it:
taskset -p mask pid
PERMISSIONS
A user can change the CPU affinity of a process belonging to the same user. A user must possess CAP_SYS_NICE to change the CPU affinity of
a process belonging to another user. A user can retrieve the affinity mask of any process.
SEE ALSO chrt(1), nice(1), renice(1), sched_getaffinity(2), sched_setaffinity(2)
See sched(7) for a description of the Linux scheduling scheme.
AUTHOR
Written by Robert M. Love.
COPYRIGHT
Copyright (C) 2004 Robert M. Love. This is free software; see the source for copying conditions. There is NO warranty; not even for MER-
CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
AVAILABILITY
The taskset command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux August 2014 TASKSET(1)