Re: equivalent of /proc/meminfo in AIX

From: <dbvision_at_iinet.net.au>
Date: Wed, 23 May 2012 10:36:50 +0800
Message-Id: <470e3555d45c869d7e32bb4c16e047bed5c61933_at_webmail.iinet.net.au>


         vmstat is one of your friends:
usage: vmstat [ -fsviItlwhc ] [ [ -p | -P ]  pagesize | ALL ] [ -_at_ Wpar Name | ALL ] [ Drives ] [ -S [ Power ]] [ Interval [ Count ] ] aubdc00-aws01d:NPPRD$vmstat -P ALL

System configuration: mem92MB

pgsz           
memory                           page

----- -------------------------- ------------------------------------
           siz      avm      fre    re   
pi    po    fr     sr    cy    4K   953760   611862    40911     0     0     0     3      6     0
  64K    20262    21278      166     0     0     0     0      0     0   16M      200      158       42     0     0     0     0      0     0 aubdc00-aws01d:NPPRD$vmstat -l

System configuration: lcpu=4 mem92MB ent=1.00

kthr    memory              page              faults             

cpu           large-page
----- ----------- ------------------------ ------------
----------------------- -----------
 r  b   avm   fre  re  pi  po  fr   sr  cy  in   sy 
cs us sy id wa    pc    ec   alp   flp
 1  1 1599475 43570   0   0   0   4    7   0 125 2390 759  1  0 98  0  0.01   1.2   158    42

        You might as well read this:

        http://www-03.ibm.com/systems/resources/systems_p_os_aix_whitepapers_multiple_page.pdf

        The savings is much less about memory than it is about CPU cycles: translating virtual addresses into physical ones is not a free operation...
----- Original Message -----
 From: thiagomaciel_at_gmail.com
To:"Oracle-L List"
Cc:
Sent:Tue, 22 May 2012 12:47:39 -0300
Subject:equivalent of /proc/meminfo in AIX

 Hello All,
 I'd like to quantifying large page (16mb) Memory Savings with Oracle 10gR2
 (10.2.0.5) running on aix 6.1 like this test below:

 http://kevinclosson.wordpress.com/2009/07/28/quantifying-hugepages-memory-savings-with-oracle-database-11g/

 In Linux we have /proc/meminfo ("PageTables") , what is the equivalent of
 /proc/meminfo in AIX? Where is the pagetables in AIX?

 Thanks in advance.

 Thiago Maciel

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Received on Tue May 22 2012 - 21:36:50 CDT

Original text of this message