[CentOS] To PAE or not to PAE...
Hakan Koseoglu
hakan at koseoglu.org
Thu Jul 22 22:42:42 UTC 2010
Hi John,
On 22/07/10 19:56, JohnS wrote:
> Try about 69Gbytes& What are you fiddling with? limits.conf?
I think you read my mail too quickly and wrote a reply in similar speed.
:) So did I read the original post too quickly and didn't realise he was
complaining about the memory hole...
You're right to say PAE goes to 64GB although in the past various
distros had kernels compiled for different max addresses for various
reasons.
4GB address space still applies to 32 bit apps. To use more than 4GB
tricks as such
(http://www.puschitz.com/TuningLinuxForOracle.shtml#ConfiguringVeryLargeMemory)
need to be used. :)
I haven't had to use these kinds of tricks for years since every machine
I encounter has 64 bits and Oracle runs nicely on them perfectly happily.
I miss reading through Puschitz's tips & tricks. Lately all Oracle
versions run pretty much out of the box on CentOS/Upstream. No sense of
satisfaction from seeing it running after battling with it for hours. :)
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