From: Alex Kiselev <alex@therouter.net>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
Bruce Richardson <bruce.richardson@intel.com>
Subject: Re: [PATCH v5 1/2] librte_lpm: Improve performance of the delete and add functions
Date: Mon, 16 Jul 2018 18:36:25 +0300 [thread overview]
Message-ID: <192110016.20180716183625@therouter.net> (raw)
In-Reply-To: <20180716081732.05302ae4@xeon-e3>
> On Mon, 16 Jul 2018 11:05:27 +0300
> Alex Kiselev <alex@therouter.net> wrote:
>> librte_lpm: Improve lpm6 performance
>> Rework the lpm6 rule subsystem and replace
>> current rules algorithm complexity O(n)
>> with hashtables which allow dealing with
>> large (50k) rule sets.
>> Signed-off-by: Alex Kiselev <alex@therouter.net>
> Internet routers can have 1M rule sets.
> The cost of a hash table maybe too high then?
If I am not mistaken cuckoo hash algorithm on which the rte_hash is
based is just a plain array logically divided into buckets.
So, I am not introducing any memory overhead in comparison
with current rule storage implementation that uses a plain array.
--
Alex
next prev parent reply other threads:[~2018-07-16 15:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5b4c51d3.1c69fb81.7a4de.519aSMTPIN_ADDED_MISSING@mx.google.com>
2018-07-16 15:17 ` [PATCH v5 1/2] librte_lpm: Improve performance of the delete and add functions Stephen Hemminger
2018-07-16 15:36 ` Alex Kiselev [this message]
2018-07-16 15:41 ` Alex Kiselev
2018-07-16 8:05 Alex Kiselev
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