Saturday, February 25, 2012

64 bit vs 32 bit with same RAM.

If I’m setting up a server, and I don’t plan on putting a lot of RAM(4GB
maybe 8GB) in it, will 64bit still be better?
thanks
If I'm to make a choice in the specific situation that you described and my
databases have always been on the 32-bit platform, I would most likely just
leave them on 32-bit until I run tests to determine if there is any benefits
going to 64 bit at all.
But there is always this issue of 'scaling forward' to take advantage of
what's coming in computing, and 64-bit generally speaking would put you in a
better position to scale forward. Of course, for your particular app, scaling
forward may or may not be relevant.
Now, note that 64-bit does carry some overhead in terms of larger data
structures and so on. Not all workloads will automatically benefit
performance wise from moving to 64-bit. For instance, if the data set of your
workloads can fit largely in memory, you may find 32-bit faster than 64-bit.
Linchi
"Jason" wrote:

> If I’m setting up a server, and I don’t plan on putting a lot of RAM(4GB
> maybe 8GB) in it, will 64bit still be better?
> thanks

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