We are planning to move to AIX 5.3 and we would like to know if someone has had any 'bad' experiences with it.
We have a 32PE p690 Regatta and currently we are running the latest AIX 5.2 with the latest patches. Has anyone any interesting points to mention when transitioning to AXI 5.3?
Is... (1 Reply)
After install fix pack or APAR, if aix need reboot? if not, do we need stop database and all applications before we install fix pack or APAR? (3 Replies)
Hi,
redbook documentation is telling that IY17981 fix is required for aix 4.3.3 to aix 5L migration. But there is no mention about that fix in any ML installation packages.
- My system is ML11 :
oslevel –r
4330-11
- But xlC.rte is on wrong version :
lslpp -L xlC.rte
xlC.rte ... (3 Replies)
Hi,
I want to print from AIX 5.3/6.1 using 'pr' preprocessing filter and 'PCL' print file type.
Steps:
1. Smitty
2. Print Spooling
3. Create a print queue(remote->Generic)
4. change the attributes for that print queue.
5. Change print file type to PCL and... (1 Reply)
Hi All,
I have this fix for AIX (5300-06-06-0811) and i need to install it.
How can i do this?
What are the prerequisites for this fix?
Thanks (1 Reply)
We have tried to install an APAR fix IZ20298 on a AIX test server. It is requiring a base level of bos.adt.prof of 5.3.0.0 I cannot find this file anywhere. I fould 5.3.0.1 and it still will not install without the base install. Any ideas where I can find bos.adt.prof 5.3.0.0? (1 Reply)
Hi
Could somebody explain me how AIX is using CPU??
For example when we have 2 processors system is giving all task to one of them till 100% is used ?? Or it's depend on configuration or anything else ??
Best regards
enda (3 Replies)
Hi All,
i'm try to update my aix 6100.06.05 to 6100.07.00.
i download the 4,5 GB of FixPack buy i don't have a required package (devices.chrp.pci.rte 6.1.7.0)
This package does not exist on the fix pack (i've check in the .toc file and in the .bff files)
On ibm website i see that this... (0 Replies)
Guys,
I have a question - when nmon reports a sizeable %CPU wait, does that mean -
1) IO operations are slowing CPU down, OR
2) paging slowing the CPU down, OR
3) one cant tell??
I thought the nmon documentation clearly suggested that CPU waits reported in nmon were from disk... (4 Replies)
Discussion started by: getback0
4 Replies
LEARN ABOUT REDHAT
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)