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Re: [Xen-users] Large number of TCP sockets

  • To: xen-users@xxxxxxxxxxxxx
  • From: Niels Dettenbach <nd@xxxxxxxxxxxx>
  • Date: Mon, 29 Apr 2013 14:40:19 +0200
  • Delivery-date: Mon, 29 Apr 2013 12:42:24 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

Am Freitag, 26. April 2013, 21:34:52 schrieb John:
> The characteristics of the VM experiencing the problems; 2700 
> sockets always open, 32bit app, 4 vcpus, Linux. 
Did you experience the same with target / source machines outside your xen 
setup (means - are you shure that the problems depends from xen here)? How 
many IP addresses do you have within your DomU xennet interfaces? How many 

What version(s) of xen and DomU kernels you are using? I've run into similiar 
problems on NetBSD 4 some years ago where i've runned out of nmbclusters with 
a very similiar effect to me. Not shure if that wold help you here...

> Anybody have experience with large number of sockets?  Or tried this: 
> http://sourceforge.net/projects/xvmsocket/ I think I could configure my 
> VM setup to accommodate it.

this is new to me - if that concept would work "transparently" for 
("accelerating") usual/standard TCP/IP sockets on linux guests this sounds 
like a "must" for many xen users - but if i understand right this will bring 
up some own/new special socket type for usage with applications using this 
type of new sockets?


 Niels Dettenbach
 Syndicat IT & Internet
 PGP: https://syndicat.com/pub_key.asc

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