03-14-2006
Negm, be aware that there is a fundamental difference between AIX versions prior to 4.3.3 ML10 (aka "AIX 4.4") and after this version. Before 4.3.3 ML10 AIX had an "early swap allocation strategy", that means that as a program got started the page necessary to swap it out was allocated even if it was held in memory. That meant that usage rates of 60% or more weren't that troublesome at all because "swapspace used" was meaning "swapspace marked in use for eventually swapping out something now in memory". Only vmtstat could tell you the real state of the machine.
With AIX 4.3.3 ML10 that changed to a "late swap allocation strategy", like the othere major UNIX vendors employed. Swapspace is now allocated only as it is (really) needed, meaning, when processes are being swapped out of memory.
In short: without knowing which AIX version you are talking of it is simply impossible to find out what is going on on your machine.
bakunin
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LEARN ABOUT PHP
fs_getcacheparms
FS_GETCACHEPARMS(1) AFS Command Reference FS_GETCACHEPARMS(1)
NAME
fs_getcacheparms - Displays the current size and usage of the cache
SYNOPSIS
fs getcacheparms [-help] [-files] [-excessive]
fs getca [-h] [-files] [-excessive]
DESCRIPTION
The fs getcacheparms command displays the current size of the cache (which can be in memory or on disk), and the amount currently in use.
The reported statistics are from kernel memory, so the reported size can differ from the setting specified in the /etc/openafs/cacheinfo
file on a machine using a disk cache, if the fs setcachesize command has been used to alter cache size.
OPTIONS
-help
Prints the online help for this command. All other valid options are ignored.
-files
Displays the current number of cache files in use, and the maximum available, as well as displaying the current cache size.
-excessive
Displays detailed cache statistics, including the flags set on each cache element, and the distribution of cache entries by size.
OUTPUT
The output reports
AFS using <amount> of the cache's available <size> 1K byte blocks.
where <amount> is the number of kilobyte blocks currently used to cache data and status information, and <size> is the total current cache
size.
EXAMPLES
The following example shows the output on a machine with a 25000 kilobyte cache.
% fs getcacheparms
AFS using 22876 of the cache's available 25000 1K byte blocks.
The following shows the output when asked to show file information.
% fs getcacheparm -files
AFS using 0% of cache blocks (897 of 200000 1k blocks)
1% of the cache files (79 of 6250 files)
And finally, the following detailed information can be obtained by using the excessive flag
% fs getcacheparm -excessive
AFS using 0% of cache blocks (897 of 200000 1k blocks)
1% of the cache files (79 of 6250 files)
afs_cacheFiles: 6250
IFFree: 6171
IFEverUsed: 79
IFDataMod: 0
IFDirtyPages: 0
IFAnyPages: 0
IFDiscarded: 1
DCentries: 3122
0k- 4K: 74
4k- 16k: 3045
16k- 64k: 2
64k- 256k: 0
256k- 1M: 1
>=1M: 0
PRIVILEGE REQUIRED
None
SEE ALSO
fs_setcachesize(1)
COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas
Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
OpenAFS 2012-03-26 FS_GETCACHEPARMS(1)