My preference has always been to lock the pagefile to a specific size, for the exact reasons you mention - page file expansion is an expensive proposition, and its only going to happen when the system is already experiencing an above average load.
-------------------------------------------------------------- Roger D. Seielstad - MTS MCSE MS-MVP Sr. Systems Administrator Inovis Inc. > -----Original Message----- > From: Darren Mar-Elia [mailto:[EMAIL PROTECTED] > Sent: Thursday, August 14, 2003 7:23 PM > To: [EMAIL PROTECTED] > Subject: RE: [ActiveDir] Pagefile sizes... Its that time of > year again. > > > I think the standard formulas work well as a starting point, > but over the years I've gotten stingy on pagefile size, since > you can get defragmentation in the pagefile and really big > ones can get correspondingly more fragmented if they start to > get up to a fair percentage of total disk space. In any case, > my overall goal is to prevent the OS from having to grow the > pagefile as the memory pressure increases, since growing the > page file is a pretty expensive operation, especially if the > disk is already fragmented. So what I try to do is keep an > eye on the system's total Committed Bytes during the server's > typical workload cycle. You can see peak committed bytes in > Task Manager (under Commit Charge) or in PerfMon (under the > Memory object). I'm sure there's a technical reason behind > it, but Windows seems to grow the pagefile when the Committed > Bytes allocated by the system gets near the Commit Limit. The > commit limit is roughly the amount of physical MB of RAM you > have on the system + the current minimum page file size. So, > if you have 500MB of Ram and a 1.5 GB minimum page file size, > then your commit limit is 2GB. If the committed bytes peak > never even gets close to 2GB over the course of the server > doing its job, then you can safely drop the minimum page file > size accordingly. You of course want to allow for some buffer > for workload increases, but that approach seems to work > pretty well and can keep the page file nice and tidy. I'd be > interested to hear if anyone finds something different, but > this has worked pretty well for me. > > Darren > > -----Original Message----- > From: Costanzo, Ray [mailto:[EMAIL PROTECTED] > Sent: Thursday, August 14, 2003 1:24 PM > To: [EMAIL PROTECTED] > Subject: RE: [ActiveDir] Pagefile sizes... Its that time of > year again. > > > The rule of thumb I've always heard is RAM×1.5, so 1.5 GB. > > Ray at work > > > -----Original Message----- > > From: Myrick, Todd (NIH/CIT) [mailto:[EMAIL PROTECTED] > > > > > So you have a Gig of ram on a DC, what do you all set the > > pagefile size to? > > Memory +11 MB? > > > > Like to hear your feedback. > > > ************************************************************** > ******************************************** > The information contained in this e-mail message is intended > only for the personal and confidential use of the > recipient(s) named above. Distribution, publication, or > retransmission of this message is strictly > prohibited. This message may be a bank to client > communication and as such is priviliged and confidential. > If the reader of this message is not the intended recipient > or an agent responsible for delivering it to the > intended recipient, you are hereby notified that you have > received this document in error and that any > review, dissemination, distribution, or copying of this > message is strictly prohibited. If you have received > this communication in error, please notify us immediately by > e-mail, and delete the original message. > > The sender of this e-mail specifically "opts-out" of the > Electronic Signatures and Global and National > Commerce Act (E-Sign) and any and all similar state and > federal acts. Accordingly, but without limitation, > any and all documents, contracts, and ageements must contain > a handwritten signature of the sender to be legal, valid, and > enforceable. > ************************************************************** > ******************************************** > > List info : http://www.activedir.org/mail_list.htm > List FAQ : http://www.activedir.org/list_faq.htm > List archive: > http://www.mail-archive.com/activedir%> 40mail.activedir.org/ > > List info : > http://www.activedir.org/mail_list.htm > List FAQ : http://www.activedir.org/list_faq.htm > List archive: > http://www.mail-archive.com/activedir%> 40mail.activedir.org/ > List info : http://www.activedir.org/mail_list.htm List FAQ : http://www.activedir.org/list_faq.htm List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
