Hugepages setup OEL6
- From: Mek S <sidi.bouzid.meknessy@xxxxxxxxx>
- To: ORACLE-L <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 26 Oct 2012 21:41:31 +0200
Hello,
I am setting up hugepages on Oracle ENterprise Linux. I used the script
provided by MOS ID: 401749.1 (
http://blog.csdn.net/orion61/article/details/6698515)
The ouput of the script is;
*
-bash-4.1# ./hugepages_settings.sh
This script is provided by Doc ID 401749.1 from My Oracle Support
(http://support.oracle.com) where it is intended to compute values for
the recommended HugePages/HugeTLB configuration for the current shared
memory segments. Before proceeding with the execution please make sure
that:
* Oracle Database instance(s) are up and running
* Oracle Database 11g Automatic Memory Management (AMM) is not setup
(See Doc ID 749851.1)
* The shared memory segments can be listed by command:
# ipcs -m
Press Enter to proceed...
***********
** ERROR **
***********
Sorry! There are not enough total of shared memory segments allocated for
HugePages configuration. HugePages can only be used for shared memory
segments
that you can list by command:
# ipcs -m
of a size that can match an Oracle Database SGA. Please make sure that:
* Oracle Database instance is up and running
* Oracle Database 11g Automatic Memory Management (AMM) is not configured
*
I don't know why it is giving errors. This is the output of ipcs -m
command;
*-bash-4.1# ipcs -m
------ Shared Memory Segments --------
key shmid owner perms bytes nattch status
0x00000000 0 gdm 600 393216 2 dest
0x00000000 32769 gdm 600 393216 2 dest
0x00000000 65538 gdm 600 393216 2 dest
0x00000000 98307 gdm 600 393216 2 dest
0x00000000 29884420 grid 640 4096 0
0x00000000 29917189 grid 640 4096 0
0x5c213720 29949958 grid 640 4096 0
0x00000000 262151 oracle 600 393216 2 dest
0x00000000 294920 oracle 600 393216 2 dest
0x00000000 327689 oracle 600 393216 2 dest
0x00000000 360458 oracle 600 393216 2 dest
0x00000000 393227 oracle 600 393216 2 dest
0x00000000 425996 oracle 600 393216 2 dest
0x00000000 458765 oracle 600 393216 2 dest
0x00000000 491534 oracle 600 393216 2 dest
0x00000000 524303 oracle 600 393216 2 dest
0x00000000 557072 oracle 600 393216 2 dest
0x00000000 589841 oracle 600 393216 2 dest
0x00000000 622610 oracle 600 393216 2 dest
0x00000000 688147 oracle 600 393216 2 dest
0x00000000 786452 grid 600 393216 2 dest
0x00000000 6717461 oracle 600 393216 2 dest
0x00000000 819222 grid 600 393216 2 dest
0x00000000 851991 grid 600 393216 2 dest
0x00000000 884760 grid 600 393216 2 dest
0x00000000 917529 grid 600 393216 2 dest
0x00000000 950298 grid 600 393216 2 dest
0x00000000 983067 grid 600 393216 2 dest
0x00000000 1015836 grid 600 393216 2 dest
0x00000000 1048605 grid 600 393216 2 dest
0x00000000 1081374 grid 600 393216 2 dest
0x00000000 1114143 grid 600 393216 2 dest
0x00000000 1146912 grid 600 393216 2 dest
0x00000000 1179681 grid 600 393216 2 dest
0x00000000 1212450 grid 600 393216 2 dest
0x00000000 1277987 grid 600 393216 2 dest
0x00000000 30146596 oracle 640 4096 0
0x00000000 30179365 oracle 640 4096 0
0x00000000 29786150 grid 600 393216 2 dest
0x00000000 2818087 grid 600 393216 2 dest
0x298a3b7c 30212136 oracle 640 4096 0
0x00000000 29818921 grid 600 393216 2 dest
*
and ;
*-bash-4.1# cat /proc/meminfo
MemTotal: 2051804 kB
MemFree: 110912 kB
Buffers: 12440 kB
Cached: 1193832 kB
SwapCached: 9596 kB
Active: 1012540 kB
Inactive: 722100 kB
Active(anon): 743452 kB
Inactive(anon): 480700 kB
Active(file): 269088 kB
Inactive(file): 241400 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 8388604 kB
SwapFree: 8242496 kB
Dirty: 76 kB
Writeback: 0 kB
AnonPages: 519896 kB
Mapped: 255912 kB
Shmem: 695784 kB
Slab: 79116 kB
SReclaimable: 35920 kB
SUnreclaim: 43196 kB
KernelStack: 3592 kB
PageTables: 76556 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 9414504 kB
Committed_AS: 2481432 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 277776 kB
VmallocChunk: 34359454332 kB
HardwareCorrupted: 0 kB
AnonHugePages: 120832 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 8192 kB
DirectMap2M: 2088960 kB
-bash-4.1#
*
Any idea?
Thanks
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