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Help with hugetlb on MDV kernel [solved]


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Hi!

 

Do someone knows how to make hugetlb works under Mandriva LE2005 Download Edition?

 

I'm asking it, becouse I belive that it is the answer for how to get large SGA (>1.7G) w/ Oracle under Mandriva Linux.

Am I right?

 

I don't want to be forced to use Fedora, SUSE, or White Box. I like Mandriva.

So please :help: ...

 

Thanx 4 n F1!

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AFAIK support for it is already included in the -mm tree of the Linux kernel. Can't be sure if it's disabled by default on Mandriva for some reason (there seem to be some issues with it and memory management), but enabling it and rebuilding the kernel should be fairly simple.

Edited by scarecrow
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Thanks 4 the reply. :D

 

The HugeTLB is in all Mandriva kernels but is disabled by default.

If anyone wants to active this...

 

As root do a make menuconfig in /usr/src/linux and go in

File systems --->

|- Pseudo filesystems --->

[*] HugeTLB file system support <- Mark that option with * (spacebar), exit and save .config

 

So as root:

make

make install

make modules_install

 

And boot with your new custom kernel.

Now Oracle (9i with latest patches or 10g) can create a SGA with more than 1.7GB. Course that you need at least 2.5GB of RAM to create a SGA with more than 1.7GB

And with libaio, the Oracle flyes high. :banana:

(search Mandrivausers.org for my Async IO post.)

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