This might sound silly but i am trying to determine if i have sufficient memory or not.
My definition of sufficient memory = no swapping + no paging to physical swap file.
I know i can use vmstat to monitor swapping and paging and using the SR column as well.
But wouldn't it be extremely direct if i were to just use
and make sure my "free" = "blocks"
Hi all!
Working on Oracle v8i/9i on Unix Sun Solaris v8.0.
I am experiencing excessive paging & Swapping.Would like to know the cause.
I guess:could be due to inappropriate setting of Unix Kernel Parameters...
Please correct me if I am wrong!
Thanks&Regards,
Amit. (5 Replies)
Hi Guys: Would like to know how to check system swapping and paging and some theory on how they function. I am an oracle dba and my environment is 8171 on AIX 433. We have a 1GB of RAM on the box and I am educating myself to see how much more SGA can be accommodated on the box and what are the... (2 Replies)
Hello!
Why does my SuSE GNU/Linux machine swap?
I have a Gig of ram, currently 14MBs of free RAM, 724MB - buffers and caches...
That is 685MB of cached RAM, then kernel really should'nt have to swap, It should release cached memory in my thinkin...
It has only swaped 3MB's but still,... (3 Replies)
can anybody explain me the concepts
virtual memory mangement, swapping and paging?
although i roughly know what they are , i need
more solid distinction between them, and also i want to figure out
the relations between them?
do you have any well-defined definitons for this concepts? (2 Replies)
Hi,
I am attempting to replace several similar words with another word in vi. Here is what I have written for the script:
3dTcat -prefix SuperBrik_4WAY_HRF ../JULY10_2007A/results2TENT/stats.JULY10_2007A+tlrc ../JULY10_2007G/results2TENT/stats.JULY10_2007G+tlrc... (1 Reply)
I have some text:
<date>some_date</date>
<text>some_text</text>
<name>some_name<name>
and I want to transform it to smthng like that:
some_name on some_date: some_text
I've tried sed:
sed 's/<text>\(.*\)<\/text>
<name>\(.*\)<\/name>/\2 - \1/'
but it says unterminated... (13 Replies)
Hallo Team,
This is the command that i am running :
grep ",Call Forward Not Reachable" *2013*
this is the output that i am getting (i did a head -10 but the files can be more than 1000)
... (8 Replies)
Hi Guys
I am using SPARC-T4 (chipid 0, clock 2998 MHz), SunOS 5.10 Generic_150400-38 sun4v.
How do I see if the server was doing some swapping like yesterday?
I had a java application error with java.lang.OutOfMemoryError, now I want to check if the server was not doing some swapping at... (4 Replies)
Hi there,
I have a text that I'm trying to format into something more readable. However, I'm stuck in the last step. I've searched and tried things over the internet with no avail.
OS: Mac
After parsing the original text that I won't put here, I managed to get something like this, but this... (8 Replies)
Discussion started by: Kibou
8 Replies
LEARN ABOUT FREEBSD
swapon
SWAPON(2) BSD System Calls Manual SWAPON(2)NAME
swapon, swapoff -- control devices for interleaved paging/swapping
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
int
swapon(const char *special);
int
swapoff(const char *special);
DESCRIPTION
The swapon() system call makes the block device special available to the system for allocation for paging and swapping. The names of poten-
tially available devices are known to the system and defined at system configuration time. The size of the swap area on special is calcu-
lated at the time the device is first made available for swapping.
The swapoff() system call disables paging and swapping on the given device. All associated swap metadata are deallocated, and the device is
made available for other purposes.
RETURN VALUES
If an error has occurred, a value of -1 is returned and errno is set to indicate the error.
ERRORS
Both swapon() and swapoff() can fail if:
[ENOTDIR] A component of the path prefix is not a directory.
[ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.
[ENOENT] The named device does not exist.
[EACCES] Search permission is denied for a component of the path prefix.
[ELOOP] Too many symbolic links were encountered in translating the pathname.
[EPERM] The caller is not the super-user.
[EFAULT] The special argument points outside the process's allocated address space.
Additionally, swapon() can fail for the following reasons:
[ENOTBLK] The special argument is not a block device.
[EBUSY] The device specified by special has already been made available for swapping
[ENXIO] The major device number of special is out of range (this indicates no device driver exists for the associated hardware).
[EIO] An I/O error occurred while opening the swap device.
Lastly, swapoff() can fail if:
[EINVAL] The system is not currently swapping to special.
[ENOMEM] Not enough virtual memory is available to safely disable paging and swapping to the given device.
SEE ALSO config(8), swapon(8), sysctl(8)HISTORY
The swapon() system call appeared in 4.0BSD. The swapoff() system call appeared in FreeBSD 5.0.
BSD October 4, 2013 BSD