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* nf_nat_cleanup_conntrack performance with rhlist
@ 2017-09-06 11:53 Ivan Babrou
  2017-09-06 12:39 ` Florian Westphal
  0 siblings, 1 reply; 2+ messages in thread
From: Ivan Babrou @ 2017-09-06 11:53 UTC (permalink / raw)
  To: netfilter-devel, fw, pablo

Hello,

We hit a bug where nf_nat_cleanup_conntrack is taking exponential amount of time
if you ping a lot of distinct IPs. It seems to be related to hlist ->
rhlist migration.

Here's the bugzilla ticket:

* https://bugzilla.kernel.org/show_bug.cgi?id=196821

It has a reproduce script and the list of reverts that bring back
reasonable performance.

Dev mailing list seems like a good place to notify the right people.

The first email got rejected because of html subpart, apologies for
the duplicate.

Thanks.

^ permalink raw reply	[flat|nested] 2+ messages in thread
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2017-09-06 11:53 nf_nat_cleanup_conntrack performance with rhlist Ivan Babrou
2017-09-06 12:39 ` Florian Westphal

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