RE: Monitoring Memory on DYNIX

From: Gene Gurevich <g_u_r_e_v_i_c_h_at_yahoo.com>
Date: Fri, 22 Jun 2001 11:39:08 -0700
Message-ID: <F001.00334285.20010622114251@fatcity.com>

Ross,

I'm not sure why it is being done. We had an audit of our systems done by IBM people and that's one of their recommendations. I think their logic is "you hit ratio is pretty high - 99% - so you can do with less memory".
This server is not a dedicated Oracle server, we are running another application (SAS) on it.

I have been running sar -wpr to get info on paging, swapping and unused memory. Does this make sense to you?

thank you

Gene

• "Mohan, Ross" <MohanR_at_STARS-SMI.com> wrote:
  > 1) use sar on SVR4 systems....vmstat is a BSD thing
  > 2) DYNIX rocks
  > 3) IMHO yer BUFPCT is too high. If this is a
  > dedicated database server ( i.e. no other apps on it
  ) and you are using ptx's DirectIO ( check with yer SA, or run truss on a shadow ) you really don't need much more than 10. YMMV, etc.
  > 4) You never mention WHY you are tweaking kernel
  > params.What is going on?
  >
  >
  >
  > -----Original Message-----
  > Sent: Friday, June 22, 2001 11:17 AM
  > To: Multiple recipients of list ORACLE-L
  >
  >
  > Hi all
  >
  > We are running oracle 8.1.6 on DYNIX 4.4.7.
  > CUrrently the BUFPCT is set to 25 and during this
  > weekend will be increased to 30. I'd like to be
  > able to check whether this affects oracle in any
  > way.
  > What statistics should I be looking at? I was
  > thinking
  > of using a vmstat (to check of page-outs ) but it
  > doesn't exist on DYNIX. Any ideas?
  >
  > thanks
  

  ---

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Received on Fri Jun 22 2001 - 13:39:08 CDT