8 More Discussions You Might Find Interesting
1. Ubuntu
I wrote this kernel module to test the correctness of ndelay() function.
Kernel mdoule:
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/time.h>
#include <linux/delay.h>
static int __init initialize(void)
{
ktime_t start, end;
s64... (1 Reply)
Discussion started by: BHASKAR JUPUDI
1 Replies
2. Red Hat
Hi,
i am new to linux/RHEL 6.0 and i have two questions.
1) How to get the CPU utilization and Memory Utilization of all Services running currently?
2) How to get the CPU utilization and Memory Utilization of all Applications running currently?
Please help me to find the script.
... (2 Replies)
Discussion started by: nossam
2 Replies
3. Red Hat
Heyas
So i have my custom Fedora with AwesomeWM spin with alots of customizations using the kickstart method for a liveimage.
A few weeks (2-3 months) ago, i've done some changes i cannot remember.
Those changes made the image from bootable to gui, to not booting to gui any more.
Just... (3 Replies)
Discussion started by: sea
3 Replies
4. UNIX for Advanced & Expert Users
Hi all,
I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...).
I'm trying to automate it with a shell script but in same cases I got the syslog broadcast message.
Is there any way to simply get a return code... (3 Replies)
Discussion started by: Dedalus
3 Replies
5. Red Hat
Hello all,
If anyone has time, I have a few questions:
How do I do the following in Linux. We are using Red Hat and Oracle Enterprise Linux, which is based on Red Hat too.
1. How to lock the account after a few (like 3) invalid password attempts?
2. How do you lock a screen after 30... (1 Reply)
Discussion started by: nstarz
1 Replies
6. Programming
I have a Java program. I want to measure the total memory used by the program, especially the peak memory. Is there a way to do it?
I have tried utilities like time (which returns 0) and top (which is not very useful) as the program does not run for long.
Can anyone suggest a way to do this?... (5 Replies)
Discussion started by: spathical
5 Replies
7. IP Networking
i have a wireless network that is connected to internet over nat.there is ap that is connected to another ap in bridge mode, on ap is used for clients, and the other is connected to the machine that is doing masquerading. so i want to measure traffic of my clients and i thought about doing it with... (0 Replies)
Discussion started by: mdfk
0 Replies
8. UNIX for Dummies Questions & Answers
how can I lock my keyboard while I'm away from the computer without using lock command. What other commands gives me the option to lock keyboard device?
thanks (7 Replies)
Discussion started by: dianayun
7 Replies
dlpi_max_ub_promisc(5) File Formats Manual dlpi_max_ub_promisc(5)
NAME
dlpi_max_ub_promisc - maximum number of unbound promiscuous streams allowed on a LAN interface
VALUES
Failsafe
Default
Allowed values
or
Recommended values
DESCRIPTION
The tunable is used to dynamically increase or decrease the maximum number of unbound promiscuous streams that can be opened on a LAN
interface.
Enabling multiple unbound promiscuous streams may cause CPU utilization to increase up to three times as compared to CPU utilization with
no unbound promiscuous streams. Increasing the value of this tunable does not by itself degrade networking or kernel performance.
Who Is Expected to Change This Tunable?
Privileged user.
Restrictions on Changing
Changes to this tunable take effect immediately. When value is reduced from a higher value to a lower value, the existing unbound promis-
cuous streams will not be stopped to accommodate the change. However, this tunable will limit the new unbound streams created on the
interface.
When Should the Value of This Tunable Be Raised?
This tunable should be raised when the number of unbound promiscuous applications needs to be more than the default value.
What Are the Side Effects of Raising the Value?
Side effect may be an increase in CPU utilization.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by HP.
SEE ALSO
kctune(1M), lanadmin(1M), gettune(2), settune(2), lan(7).
DLPI Programmer's Guide on
Tunable Kernel Parameters dlpi_max_ub_promisc(5)
