7 More Discussions You Might Find Interesting
1. What is on Your Mind?
Original post from this thread on browser caching.
To add to this, it is an effective security measure to clear absolutely all cached data (cookies, web content, ....) when closing the browser - i.e. in case of a shutdown. It takes a bit of work to re-login to all the sites but websites will not... (7 Replies)
Discussion started by: bakunin
7 Replies
2. Solaris
Hi guys.
Quick question for some hopefully ;-)
When using resource capping (for CPU in this case). If a container is restricted to use a single CPU/core, are the other containers intelligent enough to know that they have fewer CPU's available to them?
My question relates to a T2000 which... (7 Replies)
Discussion started by: boneyard
7 Replies
3. Solaris
Hi,
Is there any way if a normal user in a non global zone can check the resources assigned to the zone ? like max-locked-memory etc.
2. Is it possible to disable the max-locked-memory for a particular zone without rebooting a zone ? (1 Reply)
Discussion started by: fugitive
1 Replies
4. Solaris
Can anyone answer my questions
1. Whats the difference between project.max-locked-memory and max-rss.
And out these 2 which is the preferred way of limiting the physical memory in a project or zone.
2. How to restrict the swap memory in projects (0 Replies)
Discussion started by: fugitive
0 Replies
5. Solaris
I 've 2 questions regarding resource pools and projects,
1. My system has 5 zones and 2 pools configured.
Now, how can i check which zone is running with with pool with the ps command , not with zonecfg command.
2. How can i check a process is running under which project ? (1 Reply)
Discussion started by: fugitive
1 Replies
6. Solaris
Hi
When I create a new project:
For example: projadd -K "project.max-shm-memory=(priv,16GB,deny)" project_name
I need to associate this project to a user in /etc/user_attr:
User_name::::project=project_name
Otherwise, id -p shows reveals that the user has project default.
Is there... (0 Replies)
Discussion started by: melanie_pfefer
0 Replies
7. UNIX for Dummies Questions & Answers
Hi all
I would like to know which other tools i can use besides top & sar to track the system resources
i heard of somthing that sounds like acamdmin or acsadm...
Thanks for your help (1 Reply)
Discussion started by: yelalouf
1 Replies
LEARN ABOUT LINUX
taskset
TASKSET(1) Linux User's Manual TASKSET(1)
NAME
taskset - retrieve or set a process's CPU affinity
SYNOPSIS
taskset [options] mask command [arg]...
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 are typically given in hexadecimal. For example,
0x00000001
is processor #0
0x00000003
is processors #0 and #1
0xFFFFFFFF
is all processors (#0 through #31)
When taskset returns, it is guaranteed that the given program has been scheduled to a legal CPU.
OPTIONS
-p, --pid
operate on an existing PID and not launch a new task
-c, --cpu-list
specify a numerical list of processors instead of a bitmask. The list may contain multiple items, separated by comma, and ranges.
For example, 0,5,7,9-11.
-h, --help
display usage information and exit
-V, --version
output version information 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 must possess CAP_SYS_NICE to change the CPU affinity of a process. Any user can retrieve the affinity mask.
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 MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
chrt(1), nice(1), renice(1), sched_setaffinity(2), sched_getaffinity(2)
See sched_setscheduler(2) for a description of the Linux scheduling scheme.
AVAILABILITY
The taskset command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
schedutils Apr 2003 TASKSET(1)