lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20091103175654.GA27222@kroah.com>
Date:	Tue, 3 Nov 2009 09:56:54 -0800
From:	Greg KH <greg@...ah.com>
To:	Benjamin LaHaise <bcrl@...et.ca>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Octavian Purdila <opurdila@...acom.com>,
	netdev@...r.kernel.org, Cosmin Ratiu <cratiu@...acom.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] sysfs directory scaling: rbtree for dirent name
	lookups

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

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ