[ILUG] tuning and memory...

[Jakma, Paul]

> tuning ext2: what should i tell mke2fs when building an fs 
> for oracle? 

for speed: set the blocksize=system pagesize, 4k on intel. -b 4096

On filesystems that will just have big files on them, you can reduce the
number of inodes aswell, to reclaim disk space. Eg on the oracle DB fs you
could probably go mad and use 64kB/inode. 

-i 65536

also, do you know what sort of a stripe/chunk size your raid controller
uses? if you do, you can give mke2fs a hint to optimise the fs for that
stripe size.

-R stride=<blocks per stripe>

eg fs with 4kB blocks, and a 64kb raid stripe, would be

-R stride=16

> the device itself will be a hw raid array.  when mounting the drive,
> what can i do to optimise performance?  noatime...
> 
> what issues are involved at the high memory end.  this box will have
> 1gig of ram, are there issues involved?  boot parameters?
> 

shouldn't be with 2.2.14, which has large memory support merged in iirc.

> any other ideas on maximising performance in a linux oracle server?
> 

there might be some useful info on: http://linuxperf.nl.linux.org/

> kevin
> -- 
> kevin at suberic.net                              Nutrition Facts
> fork()'ed on 37058400		       Puns: 100% RDA  (% good puns: 0)
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