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From: Joe Perches <joe@perches•com>
To: Eric Dumazet <eric.dumazet@gmail•com>
Cc: David Miller <davem@davemloft•net>,
	raghavendra.kt@linux•vnet.ibm.com, edumazet@google•com,
	kuznet@ms2•inr.ac.ru, jmorris@namei•org, yoshfuji@linux-ipv6•org,
	kaber@trash•net, jiri@resnulli•us, hannes@stressinduktion•org,
	tom@herbertland•com, azhou@nicira•com, ebiederm@xmission•com,
	ipm@chirality•org.uk, nicolas.dichtel@6wind•com,
	serge.hallyn@canonical•com, netdev@vger•kernel.org,
	linux-kernel@vger•kernel.org, anton@au1•ibm.com,
	nacc@linux•vnet.ibm.com, srikar@linux•vnet.ibm.com
Subject: Re: [PATCH RFC V2 2/2] net: Optimize snmp stat aggregation by walking all the percpu data at once
Date: Fri, 28 Aug 2015 13:53:31 -0700	[thread overview]
Message-ID: <1440795211.11525.146.camel@perches.com> (raw)
In-Reply-To: <1440794020.8932.45.camel@edumazet-glaptop2.roam.corp.google.com>

On Fri, 2015-08-28 at 13:33 -0700, Eric Dumazet wrote:
> We do not bother for small struct.
> 
> Here, the array is big enough that David prefers having an explicit
> memset() so that it clearly shows that author of this code was aware of
> this.

It's 288 bytes on stack, maybe a kzalloc would be clearer too.

  reply	other threads:[~2015-08-28 20:53 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-26 17:37 [PATCH RFC V2 0/2] Optimize the snmp stat aggregation for large cpus Raghavendra K T
2015-08-26 17:37 ` [PATCH RFC V2 1/2] net: Introduce helper functions to get the per cpu data Raghavendra K T
2015-08-26 17:37 ` [PATCH RFC V2 2/2] net: Optimize snmp stat aggregation by walking all the percpu data at once Raghavendra K T
2015-08-27 18:38   ` David Miller
2015-08-28  6:39     ` Raghavendra K T
2015-08-28 18:24       ` David Miller
2015-08-28 19:20         ` Joe Perches
2015-08-28 20:33           ` Eric Dumazet
2015-08-28 20:53             ` Joe Perches [this message]
2015-08-28 20:55               ` Eric Dumazet
2015-08-28 21:09                 ` Joe Perches
2015-08-28 21:14                   ` Eric Dumazet
2015-08-28 21:26                     ` Joe Perches
2015-08-28 22:29                       ` Eric Dumazet
2015-08-28 23:12                         ` Joe Perches
2015-08-29  0:06                           ` Eric Dumazet
2015-08-29  0:35                             ` Joe Perches
2015-08-29  0:59                               ` Eric Dumazet
2015-08-29  2:57         ` Raghavendra K T
2015-08-29  3:26           ` Eric Dumazet
2015-08-29  7:52             ` Raghavendra K T
2015-08-29  5:11           ` David Miller
2015-08-29  7:53             ` Raghavendra K T

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