[gpfsug-discuss] Encryption - client performance penalties?

[Wayne Sawdon]

> From: "Oesterlin, Robert" <Robert.Oesterlin at nuance.com>
>
> Hit send too fast – so the question is now – what’s the penalty on
> the client side?
>

Data is encrypted/decrypted on the path to/from the storage device -- it is
in cleartext in the buffer pool. If you can read-ahead and write-behind you
may not see the overhead of encryption. Random reads and synchronous writes
will see it.

-Wayne
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