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From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: Mark Smith <marks439@gmail.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] acl: Improve acl_bld.c sort_rules()
Date: Wed, 2 Sep 2015 09:05:09 +0000	[thread overview]
Message-ID: <2601191342CEEE43887BDE71AB97725836A81DD8@irsmsx105.ger.corp.intel.com> (raw)
In-Reply-To: <1440617118-1583-1-git-send-email-marsmith@akamai.com>



> -----Original Message-----
> From: Mark Smith [mailto:marks439@gmail.com]
> Sent: Wednesday, August 26, 2015 8:25 PM
> To: Ananyev, Konstantin; dev@dpdk.org
> Cc: rsanford@akamai.com; marsmith@akamai.com
> Subject: [PATCH] acl: Improve acl_bld.c sort_rules()
> 
> Replace O(n^2) list sort with an O(n log n) merge sort.
> The merge sort is based on the solution suggested in:
> http://cslibrary.stanford.edu/105/LinkedListProblems.pdf
> Tested sort_rules() improvement:
> 100K rules: O(n^2):  31382 milliseconds; O(n log n): 10 milliseconds
> 259K rules: O(n^2): 133753 milliseconds; O(n log n): 22 milliseconds
> 
> Signed-off-by: Mark Smith <marsmith@akamai.com>

Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

> ---

  reply	other threads:[~2015-09-02  9:05 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-26 19:25 Mark Smith
2015-09-02  9:05 ` Ananyev, Konstantin [this message]
2015-10-24 20:54   ` Thomas Monjalon

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