RE: Prevent ASM from using any hugepages

  • From: <Christopher.Taylor2@xxxxxxxxxxxx>
  • To: <odenysenko@xxxxxxxxx>
  • Date: Fri, 17 May 2013 14:12:42 -0500

I'd have to defer to other experts on whether it makes much difference to have 
ASM in hugepages.  From what I've read, there's really not much reason to have 
asm using any hugepages.

From: Oleksandr Denysenko [mailto:odenysenko@xxxxxxxxx]
Sent: Friday, May 17, 2013 2:09 PM
To: Taylor Christopher - Nashville
Cc: oracle-l@xxxxxxxxxxxxx; ora_kclosson@xxxxxxxxx
Subject: RE: Prevent ASM from using any hugepages


ASM uses memory anyway so why not give hugepages to it ?
I see at least one benefit - if there will be paging on the system
your ASM's SGA will not be paged out.

Oleksandr Denysenko
17.05.2013 21:56 ÐÏÌØÚÏ×ÁÔÅÌØ 
The reason for this question was nitpicky - ASM is using about 14 hugepages 
when it starts up which isn't much.  Just kind of annoyed me - probably due to 
lack of sleep lol


-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx<mailto:oracle-l-bounce@xxxxxxxxxxxxx> 
[mailto:oracle-l-bounce@xxxxxxxxxxxxx<mailto:oracle-l-bounce@xxxxxxxxxxxxx>] On 
Behalf Of 
Sent: Friday, May 17, 2013 11:29 AM
To: oracle-l@xxxxxxxxxxxxx<mailto:oracle-l@xxxxxxxxxxxxx>
Subject: Prevent ASM from using any hugepages

I'm in the process of configuring hugepages in RAC.

Since ASM starts up first, how I do prevent it from using any of the hugepages?


Chris Taylor
Oracle DBA
Parallon IT&S




Other related posts: