From: Stephen Hemminger <stephen@networkplumber.org>
To: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Cc: dev@dpdk.org, Yipeng Wang <yipeng1.wang@intel.com>,
Sameh Gobriel <sameh.gobriel@intel.com>,
Bruce Richardson <bruce.richardson@intel.com>
Subject: Re: [PATCH v4 2/4] hash: add dynamic polynomial calculation
Date: Thu, 24 Oct 2024 12:06:08 -0700 [thread overview]
Message-ID: <20241024120608.6613c9f6@hermes.local> (raw)
In-Reply-To: <20241024184657.901099-3-vladimir.medvedkin@intel.com>
On Thu, 24 Oct 2024 18:46:54 +0000
Vladimir Medvedkin <vladimir.medvedkin@intel.com> wrote:
> Current polynomial table has the following limitations:
>
> 1. It has polynomials up to degree 16
> 2. For each degree there are only 4 polynomials
>
> The above results in less entropy when generating Toeplitz hash key
> subsequences.
>
> This patch replaces the current static table approach with dynamic
> polynomial calculation for polynomials of degree 7 or higher, resulting
> in better entropy of generated RSS hash key.
>
> Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
next prev parent reply other threads:[~2024-10-24 19:06 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-10 12:33 [PATCH v2 0/4] RSS hash key generation Vladimir Medvedkin
2024-10-10 12:33 ` [PATCH v2 1/4] thash: add RSS hash key generation API Vladimir Medvedkin
2024-10-10 15:04 ` Stephen Hemminger
2024-10-10 12:33 ` [PATCH v2 2/4] hash: add dynamic polynomial calculation Vladimir Medvedkin
2024-10-10 12:33 ` [PATCH v2 3/4] hash: implement RSS hash key generation API Vladimir Medvedkin
2024-10-10 12:33 ` [PATCH v2 4/4] test/thash: add tests for RSS " Vladimir Medvedkin
2024-10-11 18:16 ` [PATCH v3 0/4] RSS hash key generation Vladimir Medvedkin
2024-10-11 18:16 ` [PATCH v3 1/4] thash: add RSS hash key generation API Vladimir Medvedkin
2024-10-11 18:17 ` [PATCH v3 2/4] hash: add dynamic polynomial calculation Vladimir Medvedkin
2024-10-15 22:29 ` Stephen Hemminger
2024-10-16 16:28 ` Medvedkin, Vladimir
2024-10-17 3:23 ` Stephen Hemminger
2024-10-18 13:42 ` Medvedkin, Vladimir
2024-10-11 18:17 ` [PATCH v3 3/4] hash: implement RSS hash key generation API Vladimir Medvedkin
2024-10-11 18:17 ` [PATCH v3 4/4] test/thash: add tests for RSS " Vladimir Medvedkin
2024-10-24 18:46 ` [PATCH v4 0/4] RSS hash key generation Vladimir Medvedkin
2024-10-24 18:46 ` [PATCH v4 1/4] thash: add RSS hash key generation API Vladimir Medvedkin
2024-10-24 19:05 ` Stephen Hemminger
2024-10-24 18:46 ` [PATCH v4 2/4] hash: add dynamic polynomial calculation Vladimir Medvedkin
2024-10-24 19:06 ` Stephen Hemminger [this message]
2024-10-24 18:46 ` [PATCH v4 3/4] hash: implement RSS hash key generation API Vladimir Medvedkin
2024-10-24 19:06 ` Stephen Hemminger
2024-10-24 18:46 ` [PATCH v4 4/4] test/thash: add tests for RSS " Vladimir Medvedkin
2024-10-24 19:06 ` Stephen Hemminger
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