From: Sippel, Christian (Christian.Sippel@IZB.DE)
Date: Fri Sep 20 2002 - 10:14:11 EDT
10 Minutes ago I did the same upgrade and my /etc/inittab remained as it was
before...
Regards,
Christian
> ----------
> Von: Page, Jennifer[SMTP:Jennifer.Page@RBCDAIN.COM]
> Antwort an: IBM AIX Discussion List
> Gesendet: Freitag, 20. September 2002 15:55
> An: aix-l@Princeton.EDU
> Betreff: Re: Memory and paging questions
>
> Just to add to this and maybe ask a question. The proposed memory leak we
> had, after upgrading from 4.3.3 ML09 to 4.3.3 ML10 turned out to be vmtune
> parameters not being reset from inittab. The upgrade from ML09 to ML10
> removed any non-default entries from the inittab. Is this standard for an
> upgrade?
>
> *Once the vmtune parameters were reset the system(s) have stopped paging.
>
> -----Original Message-----
> From: Green, Simon [mailto:SGreen@KRAFTEUROPE.COM]
> Sent: Friday, September 20, 2002 3:41 AM
> To: aix-l@Princeton.EDU
> Subject: Re: Memory and paging questions
>
>
> If you have enough memory and your tuning parameters are correct an AIX
> system does not need to page. (Subject, as always, to the vagaries of
> your
> applications.)
>
> The 200 pages of free memory is normal: memory is a valuable resource and
> AIX is smart enough not to leave it unused. The exact amount of free
> memory
> can be tuned, but it's only there to allow the system to cope with a
> sudden
> demand.
>
> 8GB is quite a lot. It's possible that the Oracle admins have created
> excessively large buffers but I think it's more likely that you need to do
> some work with vmtune.
>
> The main things to check are the minperm and maxperm (-p &-P) parameters.
> There are lots of posts on this subject in the archive.
>
> Note that vmtune is not installed by default: you may have to install it
> yourself. It's part of bos.adt.samples, which is on the normal AIX CDs.
>
> Simon Green
> Philip Morris ITSC Europe
>
> AIX-L Archive at http://marc.theaimsgroup.com/?l=aix-l&r=1&w=2
> AIX FAQ at http://www.faqs.org/faqs/aix-faq/
>
> N.B. Unsolicited email from vendors will seldom be appreciated.
>
> -----Original Message-----
> From: Rod Jenkins [mailto:RodJ@IOWATELECOM.COM]
> Sent: 19 September 2002 16:44
> To: aix-l@Princeton.EDU
> Subject: Memory and paging questions
>
>
> Hello all,
>
> Here is my question:
>
> Will perform page-in's and page-out's during regular operation?
>
> Here is the background:
>
> We have an S80 with 8GB of memory running oracle on AIX 4.3.3. During the
> day, we have less that 200 pages of memory left. The system continues to
> page, as I would expect. In my opinion, we have over allocated memory in
> Oracle, or are allowing too may concurrent connections for the memory we
> have. I say we need to add memory or limit the concurrent users. My boss
> is of the mind that no matter how much memory we add AIX will page.
>
This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 22:16:13 EDT