Message-ID: <1440795211.11525.146.camel@perches.com>
Subject: Re: [PATCH RFC V2 2/2] net: Optimize snmp stat aggregation by
 walking all the percpu data at once
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
Date: Fri, 28 Aug 2015 13:53:31 -0700
In-Reply-To: <1440794020.8932.45.camel@edumazet-glaptop2.roam.corp.google.com>
References: <1440610653-14210-3-git-send-email-raghavendra.kt@linux.vnet.ibm.com>
	 <20150827.113823.214019265460582055.davem@davemloft.net>
	 <55E00238.10909@linux.vnet.ibm.com>
	 <20150828.112413.424099339331017970.davem@davemloft.net>
	 <1440789654.11525.137.camel@perches.com>
	 <1440794020.8932.45.camel@edumazet-glaptop2.roam.corp.google.com>
Content-Type: text/plain; charset="ISO-8859-1"
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 558
Lines: 15

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.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/