From: Greg KH <greg@kroah.com>
To: Benjamin LaHaise <bcrl@lhnet.ca>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Octavian Purdila <opurdila@ixiacom.com>,
netdev@vger.kernel.org, Cosmin Ratiu <cratiu@ixiacom.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] sysfs directory scaling: rbtree for dirent name lookups
Date: Tue, 3 Nov 2009 09:56:54 -0800 [thread overview]
Message-ID: <20091103175654.GA27222@kroah.com> (raw)
In-Reply-To: <20091103164550.GM8227@kvack.org>
On Tue, Nov 03, 2009 at 11:45:50AM -0500, Benjamin LaHaise wrote:
> On Tue, Nov 03, 2009 at 08:07:15AM -0800, Greg KH wrote:
> > But registering 20000 devices is a far different problem from using
> > those 20000 devices :)
>
> Registering 20,000 devices *is* a real world problem (I'm actually aiming
> for 100,000, as that's what roughly fits in a single 10Gbps link -- something
> that a mid range system can now route). When an edge router comes up from
> reboot, or after a link has been down, the rate at which customers connect
> is important -- too slow, and you get a pile of support calls from customers
> complaining that their connection is down. Because of the data structures
> used, there isn't even any improvement from an SMP system, so this needs
> to be addressed directly.
Ok, how long are we talking about here?
thanks,
greg k-h
next prev parent reply other threads:[~2009-11-03 17:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-01 16:31 [PATCH 1/3] sysfs directory scaling: rbtree for dirent name lookups Benjamin LaHaise
2009-11-01 16:32 ` [PATCH 2/3] sysfs directory scaling: doubly linked list for dirents Benjamin LaHaise
2009-11-01 16:33 ` [PATCH 2/3] sysfs directory scaling: count number of children dirs Benjamin LaHaise
2009-11-03 3:50 ` [PATCH 1/3] sysfs directory scaling: rbtree for dirent name lookups Greg KH
2009-11-03 6:14 ` Eric Dumazet
2009-11-03 7:01 ` [PATCH] sysctl: reduce ram usage by 40 % Eric Dumazet
2009-11-03 10:23 ` Eric W. Biederman
2009-11-03 16:07 ` [PATCH 1/3] sysfs directory scaling: rbtree for dirent name lookups Greg KH
2009-11-03 16:38 ` Octavian Purdila
2009-11-03 16:45 ` Benjamin LaHaise
2009-11-03 17:56 ` Greg KH [this message]
2009-11-03 22:28 ` Eric W. Biederman
2009-11-03 20:01 ` Benjamin LaHaise
2009-11-03 21:32 ` Eric W. Biederman
2009-11-03 21:43 ` Eric W. Biederman
2009-11-03 21:56 ` Benjamin LaHaise
2009-11-03 22:06 ` Eric Dumazet
2009-11-03 21:52 ` Benjamin LaHaise
2009-11-03 22:18 ` Eric W. Biederman
2009-11-03 10:41 ` Eric W. Biederman
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