11g RedHat 5 and Hugepages

From: <tgascard_at_gmail.com>
Date: Tue, 12 Oct 2010 09:47:35 +0200
Message-ID: <4CB41297.9050404_at_gmail.com>



I did it and is working perfectly well.

My configuration :

Not Using AMM with ASM and database

/etc/sysctl.conf :

vm.nr_hugepages= 12288 -- page size 2MB => 24 GB vm.hugetlb_shm_group=1300 --id dba, be careful if it's a different user between ASM and Database
kernel.shmmax=25769803776 -- => 24 GB
kernel.shmall=6291456 -- page size 4KB =>24 GB

/etc/security/limits.conf :

memlock=25165824 -- KB => 24 GB

/etc/profile

ulimit -u 16384 -n 65536 -l 25165824

To check you are using Huge Page

grep Huge /proc/meminfo

I hope it 'will help.

Thierry.

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Received on Tue Oct 12 2010 - 02:47:35 CDT

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