Re: Conntrack Events Performance - Multipart Messages?

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Fabian Hugelshofer wrote:
Patrick McHardy wrote:
Fabian Hugelshofer wrote:
Why do you think the padding causes problems? For hashing e.g. src/dst .u3 and .u are referenced independently of potential padding. Where does access to the padding data occur?

The hash function hashes the entire tuple in one go.
The padding needs to have deterministic content for
that.

Ok, I see. This has been changed since 2.6.24. Makes sense...

Indeed. That part might also help speed things up for you a bit.
But that would also need this fix:

commit 443a70d50bdc212e1292778e264ce3d0a85b896f
Author: Philip Craig <philipc@xxxxxxxxxxxx>
Date:   Tue Apr 29 03:35:10 2008 -0700

    netfilter: nf_conntrack: padding breaks conntrack hash on ARM
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