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From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
To: Yi Yang <yang.y.yi@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@osdl.org>, Matt Helsley <matthltc@us.ibm.com>
Subject: Re: [2.6.16 PATCH] Filessytem Events Reporter V2
Date: Fri, 7 Apr 2006 14:26:03 +0400	[thread overview]
Message-ID: <20060407102602.GA27764@2ka.mipt.ru> (raw)
In-Reply-To: <443638D8.2010800@gmail.com>

On Fri, Apr 07, 2006 at 06:03:04PM +0800, Yi Yang (yang.y.yi@gmail.com) wrote:
> >>Can you explain why there is such a big difference between 
> >>netlink_unicast and netlink_broadcast?
> >>    
> >
> >Netlink broadcast clones skbs, while unicasting requires the whole new
> >one.
> >  
> No, I also use clone to send skb, so they should have the same overhead.

I missed that.
After rereading fsevent_send_to_process() I do not see how original skb
is freed though.

> >>>Btw, you need some rebalancing of the per-cpu queues, probably in
> >>>keventd, since CPUs can go offline and your messages will stuck foreve
> >>>there.
> >>> 
> >>>      
> >>Does keventd not do it? if so, keventd should be modified.
> >>    
> >
> >How does keventd know about your own structures?
> >You have an per-cpu object, but your keventd function gets object 
> >from running cpu, not from any other cpus.

-- 
	Evgeniy Polyakov

  reply	other threads:[~2006-04-07 10:31 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-05 13:21 [2.6.16 PATCH] Filessytem Events Reporter V2 Yi Yang
2006-04-05 17:12 ` Carlos Silva
2006-04-05 23:45   ` Yi Yang
2006-04-07  6:24 ` Evgeniy Polyakov
2006-04-07  8:13   ` Yi Yang
2006-04-07  9:47     ` Evgeniy Polyakov
2006-04-07 10:03       ` Yi Yang
2006-04-07 10:26         ` Evgeniy Polyakov [this message]
2006-04-07 15:14           ` Yi Yang
2006-04-07 19:47             ` Evgeniy Polyakov
2006-04-07 20:27               ` Evgeniy Polyakov
2006-04-05 14:13 Michael Guo
2006-04-05 23:44 ` Yi Yang
2006-04-06 14:34 Michael Guo

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