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From: =?UTF-8?Q?Martin_Dra=c5=a1ar?= <drasar@ics.muni.cz>
Subject: Re: Broken RSS hash computation on Intel 82574L
Date: Tue, 1 Sep 2015 17:00:41 +0200
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Dne 1.9.2015 v 16:50 Avi Kivity napsal(a):
> On 09/01/2015 05:47 PM, Matthew Hall wrote:
>> RSS calculations are used to direct packets across multiple RX queues.
>> With
>> only one RX queue it cannot possibly increase performance by enabling it.
>>
> 
> As an example, seastar uses the RSS hash computed by the NIC to select a
> core to process on, if the number of hardware queues is smaller than the
> number of cores.

Yep, we use the hash for pairing of flows and other more complicated
packet processing.