RE: [SLUG] reported memory and actual memory

2007-07-26 Thread Glen Turner
On Wed, 2007-07-25 at 16:06 +0800, [EMAIL PROTECTED] wrote: > 32 bit machines can't use more than 4G. Bigmem kernels fiddle and go partway > but to use more than 4G use 64 bit! More specifically, the bigmem 32-bit kernel uses PAE to use RAM greater than 4GB. The bad news is that this doesn't inc

Re: [SLUG] WAN link optimisation

2007-07-26 Thread David Kempe
Visser, Martin wrote: I think that the technology Gavin is thinking of is more about economising on the content being sent rather than tweaking TCP parameters. Hi, I'm familiar with the Riverbed equipment and I have to say that its very protocol dependent. SMB/CIFS is very chatty in gen

Re: [SLUG] WAN link optimisation

2007-07-26 Thread Barrie Hall
On Thu, 2007-07-26 at 10:44 +1000, Visser, Martin wrote: I think that the technology Gavin is thinking of is more about economising on the content being sent rather than tweaking TCP parameters. The only thing I'd add is that link optimisation runs out of steam at pretty low bandwidths, say >15

Re: [SLUG] WAN link optimisation

2007-07-26 Thread Glen Turner
On Thu, 2007-07-26 at 17:36 +1000, David Kempe wrote: > Oh and at Glen Turner - how is bandwidth greater than 155Mbps considered > low? :) (yes i know you work at aarnet! :) Hi Dave, It depends on your situation, obviously. Here's a quick summary from the ISP's view. It doesn't make economic

Re: [SLUG] WAN link optimisation

2007-07-26 Thread Glen Turner
On Fri, 2007-07-27 at 11:57 +1000, Robert Collins wrote: > On Fri, 2007-07-27 at 11:15 +0930, Glen Turner wrote: > > Secondly, if you run a QoS network connected > > to a non-QoS network then you might want to do deep packet > > inspection and set the DSCP on incoming traffic. Otherwise > > you end

Re: [SLUG] WAN link optimisation

2007-07-26 Thread Robert Collins
On Fri, 2007-07-27 at 11:15 +0930, Glen Turner wrote: > Secondly, if you run a QoS network connected > to a non-QoS network then you might want to do deep packet > inspection and set the DSCP on incoming traffic. Otherwise > you end up with a situation where the user on the non-QoS > network gets a

[SLUG] Video & Audio in HTML5 - W3C Editor's Draft 28 June 2007

2007-07-26 Thread Marghanita da Cruz
Editors: Ian Hickson, Google, Inc. David Hyatt, Apple, Inc. Abstract This specification defines the 5th major revision of the core language of the World Wide Web, HTML. In this version, new features are introduced to help Web application authors, new elements are introduced based

RE: [SLUG] reported memory and actual memory

2007-07-26 Thread Ben Donohue
Hi all, But can you use a 64bit kernel on a 32bit processor? I was assuming you couldn't however I'm happy to be corrected. Ben -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Glen Turner Sent: Thursday, 26 July 2007 5:16 PM To: slug Subject: RE: [SL

[SLUG] Re: slug Digest, Vol 18, Issue 38

2007-07-26 Thread jam
On Friday 27 July 2007 09:59, [EMAIL PROTECTED] wrote: > Hi all, > > But can you use a 64bit kernel on a 32bit processor? > I was assuming you couldn't however I'm happy to be corrected. Absolutely NOT. You can run 32bit stuff on 64 bit hardware cause the manufacturers made it to be so, but they'

RE: [SLUG] WAN link optimisation

2007-07-26 Thread Glen Turner
On Thu, 2007-07-26 at 10:44 +1000, Visser, Martin wrote: > I think that the technology Gavin is thinking of is more about > economising on the content being sent rather than tweaking TCP > parameters. The only thing I'd add is that link optimisation runs out of steam at pretty low bandwidths, say

[SLUG] SyPy Social Meetup Thursday 2 August 2007

2007-07-26 Thread Mark Rees
On Thursday, August 2 2007 from 6:30PM, there will be a social gathering of Sydney Python Users Group and any individuals interested in discussing Python, Web, Ruby, Perl etc. Laptops, code review, show and tell etc allowed and encouraged. We meet in the ground floor area next to P.J. O'Briens P

Re: [SLUG] WAN link optimisation

2007-07-26 Thread James Gregory
On Wed, 2007-07-25 at 10:54 +1000, James Gregory wrote: > On Tue, 2007-07-24 at 13:37 +1000, Gavin Carr wrote: > > Hey sluggers, > > > > Anyone have any pointers to open source projects (or features of projects) > > around WAN link optimisation? I'm specifically looking for a way of > > duplicat

RE: [SLUG] reported memory and actual memory

2007-07-26 Thread Glen Turner
On Fri, 2007-07-27 at 08:57 +1000, Ben Donohue wrote: > But can you use a 64bit kernel on a 32bit processor? > I was assuming you couldn't however I'm happy to be corrected. No you can't. It uses special 64-bit instructions that are not supported on 32-bt processors. Note that there are a lot of

Re: [SLUG] WAN link optimisation

2007-07-26 Thread Gavin Carr
On Thu, Jul 26, 2007 at 10:44:19AM +1000, Visser, Martin wrote: > I think that the technology Gavin is thinking of is more about > economising on the content being sent rather than tweaking TCP > parameters. Thanks a lot for all the comments in this thread so far - been some interesting reading.

Re: [SLUG] WAN link optimisation

2007-07-26 Thread Robert Collins
On Fri, 2007-07-27 at 15:36 +1000, Gavin Carr wrote: > > What I'd _really_ like, though, (and haven't found any explicit > references > to yet) is like (3) but actually duplicating packets down multiple > links, a > sort of 'network raid 1' where (3) is network raid 0. In other words, > somethi

RE: [SLUG] reported memory and actual memory

2007-07-26 Thread Ben Donohue
Hi all, Just to ask a bit more... The server has 5GB mem but top reports 3632188KB. That is approx 400K missing. I have another server with 4GB and it reports 34KB approx with around 600K missing. Shouldn't top report 410 approx (whatever the numbers are). Ben IMPORTANT NOTICE TO R

Re: [SLUG] reported memory and actual memory

2007-07-26 Thread Dean Hamstead
cat /proc/meminfo or was that mentioned already? Dean Ben Donohue wrote: Hi all, Just to ask a bit more... The server has 5GB mem but top reports 3632188KB. That is approx 400K missing. I have another server with 4GB and it reports 34KB approx with around 600K missing. Shouldn't top r

RE: [SLUG] WAN link optimisation

2007-07-26 Thread Visser, Martin
Gavin said :- "What I'd _really_ like, though, (and haven't found any explicit references to yet) is like (3) but actually duplicating packets down multiple links, a sort of 'network raid 1' where (3) is network raid 0. In other words, something that transparently splits a stream into multiple