Re: Distinction between Paging to 'File System' versus 'to Paging Space' in Nmon
From: Miller, Dave (I.S.) (Dave.Miller_at_BHS.ORG)
Date: 10/01/04
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Date: Fri, 1 Oct 2004 10:52:21 -0400 To: aix-l@Princeton.EDU
Thanks Simon, so what your saying is that it is more or less "normal"?
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Green, Simon
Sent: Friday, October 01, 2004 9:54 AM
To: aix-l@Princeton.EDU
Subject: Re: Distinction between Paging to 'File System' versus 'to
Paging Space' in Nmon
Normal disk I/O uses the paging mechanism.
Paging to Paging Space is moving data between real memory and your
paging
spaces. This is the stuff that kills performance and you need to be
most
worried about.
Paging to File System is moving data between real memory and your
filesystems. This would be committed writes. It's not part of what is
normally considered Paging and does not represent a memory shortage,
just
that a block of data is finished with.
-- Simon Green Altria ITSC Europe Ltd AIX-L Archive at https://new-lists.princeton.edu/listserv/aix-l.html New to AIX? http://publib-b.boulder.ibm.com/redbooks.nsf/portals/UNIX N.B. Unsolicited email from vendors will not be appreciated. Please post all follow-ups to the list. -----Original Message----- From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of Miller, Dave (I.S.) Sent: 01 October 2004 14:38 To: aix-l@Princeton.EDU Subject: Distinction between Paging to 'File System' versus 'to Paging Space' in Nmon Can some one point me in a direction to found out more about the Distinction between Paging to 'File System' versus 'to Paging Space' in Nmon...? Example below......'to paging space' is always zero, which 'to file system' is very active... ----------------------------------------- CONFIDENTIALITY NOTICE: This email communication and any attachments may contain confidential and privileged information for the use of the designated recipients named above. If you are not the intended recipient, you are hereby notified that you have received this communication in error and that any review, disclosure, dissemination, distribution or copying of it or its contents is prohibited. If you have received this communication in error, please reply to the sender immediately or by telephone at (413) 794-0000 and destroy all copies of this communication and any attachments. For further information regarding Baystate Health System's privacy policy, please visit our Internet web site at http://www.baystatehealth.com.
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