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From: Jonathan Morton <chromatix99@gmail.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Dave Taht <dave.taht@gmail.com>, cake@lists.bufferbloat.net
Subject: Re: [Cake] Possible BUG - parent backlog incorrectly updated in case of NET_XMIT_CN
Date: Sun, 12 Jun 2016 20:51:13 +0300	[thread overview]
Message-ID: <C82BE76D-1B9F-4842-8B54-E510BAFD8C2F@gmail.com> (raw)
In-Reply-To: <1465753733.7945.85.camel@edumazet-glaptop3.roam.corp.google.com>


> On 12 Jun, 2016, at 20:48, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> 
>> A) In my failing to make sense of all the dialog around these patches
>> ( https://lwn.net/Articles/687617/  ), it sounds like this (inbound
>> and outbound) processing are still locked to a single thread,
>> essentially?
> 
> Om a router, these discussions should not matter really, since the
> workload is about receiving/sending packets without user space
> intervention (well... I do hope this !)

Dave’s point is that inbound and outbound processing could in principle be on *two* distinct threads, potentially doubling aggregate throughput in a CPU-limited environment.

 - Jonathan Morton


  reply	other threads:[~2016-06-12 17:51 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-07 11:20 Kevin Darbyshire-Bryant
2016-06-07 14:50 ` Jonathan Morton
2016-06-07 15:05   ` Kevin Darbyshire-Bryant
2016-06-11  9:11     ` Kevin Darbyshire-Bryant
2016-06-11 16:41       ` Jonathan Morton
2016-06-12 16:31         ` Eric Dumazet
2016-06-12 16:40           ` Dave Taht
2016-06-12 17:48             ` Eric Dumazet
2016-06-12 17:51               ` Jonathan Morton [this message]
2016-06-12 18:19                 ` Eric Dumazet
2016-06-12 17:59           ` Jonathan Morton
2016-06-12 19:04             ` Eric Dumazet
2016-06-12 20:40               ` Benjamin Cronce

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