Re: Confusing data from cool new Epoptes benchmarking tool

2015-10-25 Thread David Groos
Thanks Alkis! This is looking like I'll have to study/backup a bit deeper
so I'll be testing this on this upcoming Thur/Fri after school. Quick
question, I found this page:
https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP. Will I need to make
any adjustments for 14.04.3?
David G

> Adjusting pxelinux.cfg/default for Ubuntu 12.04
>
> (cat < /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default
>
> Additional step for 12.04
>
> Installing ltsp-server does not install tftpd-hpa, which is a necessary
> component needed in order to load tftp images to the client computers upon
> pxe boot. The tftpd-hpa program listens on port 69, therefore in order to
> transfer the ltsp image files to the clients it must be installed. There is
> no additional configuring to do once it is installed. APT should install
> and start the program, you do not have to "ltsp-update-image", the syntax:
>
> sudo apt-get install tftpd-hpa
>
>


On Sat, Oct 24, 2015 at 11:08 AM, David  wrote:

> Will try this evening, thanks! David
>
>
> Sent from my T-Mobile 4G LTE Device
>
>
>  Original message 
> From: Alkis Georgopoulos
> Date:10/24/2015 7:20 AM (GMT-06:00)
> To: edubuntu-users@lists.ubuntu.com
> Subject: Re: Confusing data from cool new Epoptes benchmarking tool
>
> On 24/10/2015 06:06 πμ, David Groos wrote:
> > Clue? the slow-booting computers take a lng time to get an address
> > from DHCP. Any ideas?
>
>
> Hi David,
>
> 1) Temporarily try with ipappend 3 in pxelinux.cfg/default (google for
> instructions). This will eliminate the DHCP delay and let you compare
> the boot times more easily.
>
> 2) If your router has 4 LAN ports, use it as your "main switch", i.e.
> connect all the other switches directly to the router, don't chain them.
>
> 3) What are the client specs? Better CPUs boot faster...
>
> 4) Bootchart can measure boot time delays.
>
>
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Re: Confusing data from cool new Epoptes benchmarking tool

2015-10-24 Thread David
Will try this evening, thanks! David


Sent from my T-Mobile 4G LTE Device

 Original message From: Alkis Georgopoulos 
 Date:10/24/2015  7:20 AM  (GMT-06:00) 
To: edubuntu-users@lists.ubuntu.com Subject: Re: 
Confusing data from cool new Epoptes benchmarking tool 
On 24/10/2015 06:06 πμ, David Groos wrote:
> Clue? the slow-booting computers take a lng time to get an address
> from DHCP. Any ideas?


Hi David,

1) Temporarily try with ipappend 3 in pxelinux.cfg/default (google for 
instructions). This will eliminate the DHCP delay and let you compare 
the boot times more easily.

2) If your router has 4 LAN ports, use it as your "main switch", i.e. 
connect all the other switches directly to the router, don't chain them.

3) What are the client specs? Better CPUs boot faster...

4) Bootchart can measure boot time delays.


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Re: Confusing data from cool new Epoptes benchmarking tool

2015-10-24 Thread Alkis Georgopoulos

On 24/10/2015 06:06 πμ, David Groos wrote:

Clue? the slow-booting computers take a lng time to get an address
from DHCP. Any ideas?



Hi David,

1) Temporarily try with ipappend 3 in pxelinux.cfg/default (google for 
instructions). This will eliminate the DHCP delay and let you compare 
the boot times more easily.


2) If your router has 4 LAN ports, use it as your "main switch", i.e. 
connect all the other switches directly to the router, don't chain them.


3) What are the client specs? Better CPUs boot faster...

4) Bootchart can measure boot time delays.


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