netdev - Re: [PATCH net-next] liquidio: improve UDP TX performance

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Message-Id: <20170216.140243.117360399354357581.davem@davemloft.net>
Date:   Thu, 16 Feb 2017 14:02:43 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     rick.jones2@....com
Cc:     felix.manlunas@...ium.com, netdev@...r.kernel.org,
        raghu.vatsavayi@...ium.com, derek.chickles@...ium.com,
        satananda.burla@...ium.com
Subject: Re: [PATCH net-next] liquidio: improve UDP TX performance

From: Rick Jones <rick.jones2@....com>
Date: Thu, 16 Feb 2017 10:43:41 -0800

> On 02/16/2017 10:38 AM, Felix Manlunas wrote:
>> From: VSR Burru <veerasenareddy.burru@...ium.com>
>>
>> Improve UDP TX performance by:
>> * reducing the ring size from 2K to 512
>> * replacing the numerous streaming DMA allocations for info buffers and
>>   gather lists with one large consistent DMA allocation per ring
> 
> By how much was UDP TX performance improved?

I agree, claiming in the commit log message that UDP performance
improves without giving any before/after numbers at all is really
not acceptable.

Thanks.