About your swap configuration:
Since we dont know what external storage you use (if its the case...), I will figure out that your swap devices were not dreated at the same time and are here to correct memory access trouble of the beginning.
What will happen if you were to use the swap now? It will take the biggest first...
The impact? Your biggest is huge with only one access (unless its a multidisk striped device...) and two devices on the same root disks is not a good idea...
About CPU, Methyl and I have same way of seeing things: Not knowing what is running at what moment and for how long, you CANNOT diagnose what you have as an issue, Im tempted to say your thresholds are badly set...
I never had any serious trouble with the HP servers I managed at the time for I knew what was running on them and could ( and NOT a software ) see just by leaving glance running and looking time to time if things where normal or not... some strong calculations of stats can take 100%CPU during days (Yes! days...) a RDBMS transaction lasting hours is very suspicious but only the DBA can tell if normal or not
One classical issue figure is the box that "freezes" periodically with 100% CPU and I/O...
how can i monitor usages of CPU, Memory, Hard disk etc. under SUN Solaries
through a c program or java program
i want to store that data into database so i can show it graphically
thanks in advance (2 Replies)
Please tell me solaris functions/api for getting following information
1- Function that tells how much memory used by current process
2- Function that tells how much memory used by all running processes
3- Function that tells how much CPU is used by current process
4- Function that tells how... (1 Reply)
System FreeBSD.
Issue: I see that system idle = 0% in the same time top and other commands show that all process eat 0% of cpu.
System calls 98%
CPU states: 7.9% user, 0.0% nice, 91.8% system,<==!!!
But top does not show any process which eats more than 0%
Question: how can I see... (0 Replies)
Hi all,
When I have a below while loop in my code (This observation is same for C and Perl)
i= 0;
while(1)
{
i++;
}
for above the CPU uses goes beyond 49% on hp-ux machine, why cpu usage increase at this level for just a simple while loop?
and if I have a single print statement... (2 Replies)
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Hi,
I want to monitor the current cpu usage, monitor usage , disk I/o and network utlization for solaris using SNMP.
I want the oids for above tasks.
can you please tell me that
Thank you (2 Replies)
Hello Friends,
On one of my Solaris 10 box, CPU usage shows 100% using "sar", "vmstat". However, it has 4 CPUs and prstat and glance are not showing enough processes to justify high CPU utilization.
=========================================================================
$ prstat -a
... (4 Replies)
Hi all,
I'm using python and psutil a library to get system informations like cpu usage (percent) for a given process.
My question is if I have the value in % of the cpu usage how I could get the cpu usage in cycle number I mean not in percent?
Thanks a lot
D. (5 Replies)
Hi Guys,
I am a newbie on the forum. This is my first post, so first of all I would like to introduce myself.
I am a SAS Analyst programmer working for an Health Insurance client. SAS is installed on a 16 CPU AIX Server with partitions running with shared processor. I have couple of... (2 Replies)
Discussion started by: saurabhiim2003
2 Replies
LEARN ABOUT FREEBSD
swapoff
SWAPON(8) BSD System Manager's Manual SWAPON(8)NAME
swapon, swapoff, swapctl -- specify devices for paging and swapping
SYNOPSIS
swapon [-F fstab] -aLq | file ...
swapoff [-F fstab] -aLq | file ...
swapctl [-AghklmsU] [-a file ... | -d file ...]
DESCRIPTION
The swapon, swapoff and swapctl utilities are used to control swap devices in the system. At boot time all swap entries in /etc/fstab are
added automatically when the system goes multi-user. Swap devices use a fixed interleave; the maximum number of devices is unlimited. There
is no priority mechanism.
The swapon utility adds the specified swap devices to the system. If the -a option is used, all swap devices in /etc/fstab will be added,
unless their ``noauto'' or ``late'' option is also set. If the -L option is specified, swap devices with the ``late'' option will be added
as well as ones with no option. If the -q option is used, informational messages will not be written to standard output when a swap device
is added.
The swapoff utility removes the specified swap devices from the system. If the -a option is used, all swap devices in /etc/fstab will be
removed, unless their ``noauto'' or ``late'' option is also set. If the -L option is specified, swap devices with the ``late'' option will
be removed as well as ones with no option. If the -q option is used, informational messages will not be written to standard output when a
swap device is removed. Note that swapoff will fail and refuse to remove a swap device if there is insufficient VM (memory + remaining swap
devices) to run the system. The swapoff utility must move swapped pages out of the device being removed which could lead to high system
loads for a period of time, depending on how much data has been swapped out to that device.
Other options supported by both swapon and swapoff are as follows:
-F fstab
Specify the fstab file to use.
The swapctl utility exists primarily for those familiar with other BSDs and may be used to add, remove, or list swap devices. Note that the
-a option is used differently in swapctl and indicates that a specific list of devices should be added. The -d option indicates that a spe-
cific list should be removed. The -A and -U options to swapctl operate on all swap entries in /etc/fstab which do not have their ``noauto''
option set.
Swap information can be generated using the swapinfo(8) utility, pstat -s, or swapctl -l. The swapctl utility has the following options for
listing swap:
-h Output values in human-readable form.
-g Output values in gigabytes.
-k Output values in kilobytes.
-m Output values in megabytes.
-l List the devices making up system swap.
-s Print a summary line for system swap.
The BLOCKSIZE environment variable is used if not specifically overridden. 512 byte blocks are used by default.
FILES
/dev/{ada,da}?s?b standard paging devices
/dev/md? memory disk devices
/etc/fstab ASCII file system description table
DIAGNOSTICS
These utilities may fail for the reasons described in swapon(2).
SEE ALSO swapon(2), fstab(5), init(8), mdconfig(8), pstat(8), rc(8)HISTORY
The swapon utility appeared in 4.0BSD. The swapoff and swapctl utilities appeared in FreeBSD 5.1.
BSD November 22, 2013 BSD