IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 21 June 2016   (all times are UTC)

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09:03
<railR>
Hi Guys, I'm using a livax mini PC as my thin client but I'm experiencing performance issues on it when booting into a gnome 3 environment. These performance issues include very poor frames loading youtube videos and relatively slow file/directory opening times. It's got a N2808 cpu, GIGA LAN, 2 gigs memory and 32gig of emmc storage. The thin client is booting off a ubuntu 16.04 LTSP server.
09:05
<alkisg>
!ltsp-pnp
09:05
<ltsp>
ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
09:05
<alkisg>
Try this, it will boot it as a diskless ltsp fat client instead, and performance will be fine
09:06
<railR>
in this case will I have to redo my server? I've added a lot of stuff and done quite a bit of work on it including PAM authentication etc
09:19
<alkisg>
!fatclients
09:19
<ltsp>
fatclients: You may find some info about the Ubuntu/LTSP implementation of fat clients at https://help.ubuntu.com/community/UbuntuLTSP/FatClients
09:19
<alkisg>
There's another way, to create a fat chroot
09:25
railR: I think you could try ltsp-pnp without modifying your server, though
09:25
It would include the "lot of stuff" for the clients as well
09:25
E.g. if you installed software, the clients will automatically get it
09:26
http://www.cpubenchmark.net/cpu.php?cpu=Intel+Celeron+N2808+%40+1.58GHz ==> 983 score, it should be definately used as a fat client, not as a thin client
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13:59
<sebd_>
alkisg: http://www.cpubenchmark.net/cpu.php?cpu=Intel+Atom+N2800+%40+1.86GHz => 625 ; this is what we have here (with 2 Go RAM) - should I use them as fat clients too ?
14:00
what is the threshold ?
14:01
<||cw>
depends on the apps you want to run
14:02
<sebd_>
mostly firefox, thunderbird, libreoffice
14:02
all at the same time
14:02
<||cw>
2GB is plenty for a lot of apps
14:03
2GB 2 cores that's what I have on my windows VM and run outlook, chrome, sql server management tools, and other things
14:03
I'd say 2G and socket 775 or better is fine for most office productivity uses
14:04
<sebd_>
ok
14:04
<||cw>
especially if you have gigE
14:04
<sebd_>
yes we do have gigE
14:04
<||cw>
in which case you might consider some port bonding on the server
14:04
<sebd_>
port bonding ?
14:04
<||cw>
unless it's got 10gE to the switch
14:05
https://www.kernel.org/doc/Documentation/networking/bonding.txt
14:05
<sebd_>
no 10gE
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14:05* sebd_ rtfm
14:05sebd_ is now known as sebd
14:05
<||cw>
the way bonding works, you expose one IP on multiple NICs and the host and switch work out what clients use what NIC
14:06
<sebd>
ok
14:07
we have 20 thin clients here
14:07
it might not make a big difference, they rarely play fullscreen videos
14:07
<||cw>
might not have any issues with one nic, so do that first. it's not too hard to add it later
14:08
but if you see high nic usage on the server, that's you're solution
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16:10
<||cw>
sebd: it'll make a difference.
16:10
bonding makes a difference on my file server
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17:35
<alkisg>
vagrantc: https://bugs.launchpad.net/ltsp/+bug/1594840
17:35
I'm proposing a change from how it works now
17:35
I.e. the lts.conf file location will be in the same dir as BOOT_IMAGE, not pointed to by dhcpd.conf
17:36
<vagrantc>
hrm
17:36
<alkisg>
But this is much more easy to configure and understand than "special case PXEClient or Linux ipconfig or udhcpc"
17:36
And I don't think we're shipping a proper dhcpd.conf anyway
17:36
<vagrantc>
suppose that's true
17:36
what's improper about the shipped dhcpd.conf?
17:37
<alkisg>
if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" { filename "/ltsp/i386/pxelinux.0"; } else { filename "/ltsp/i386/nbi.img"; }
17:37
People are supposed to understand that nbi.img gets translated to lts.conf?
17:38
...because the initramfs-tools doesn't match PXEClient... *if* ipappend 3 isn't set...
17:38
Chaos
17:39
<vagrantc>
do we even support nbi.img anymore?
17:39
at one point, i seem to recall having some configuration that explicitly specified the lts.conf
17:40
but sure, keeping it in the same directory as BOOT_IMAGE makes sense.
17:40
<alkisg>
I think we have something in dnsmasq.conf
17:40
But it's klibc specific, it checks for "Linux ipconfig"
17:41
So the question is, do we need to notify anyone in some README file or so?
17:41
<vagrantc>
i think it would be good to do so, sure.
17:42
<alkisg>
vagrantc: btw from yesterday I'm a Debian Maintainer for LTSP, thank you!!! :)
17:45
<vagrantc>
alkisg: oh, did someone grant you upload rights?
17:45
alkisg: or just your account was created?
17:45* vagrantc will be happy to grant upload rights
17:47
<alkisg>
I saw two messages saying that I saw accepted as a DM and my key got in the keyring
17:48
I didn't see anything about upload rights, I guess that's up to you?
17:48
We'll do that in debconf, I'll be keeping notes then
17:50
<vagrantc>
alkisg: if your key is in the keyring, then you'll need a DD to actually grant you upload rights on a package-by-package basis
17:50
which, i look forward to have the privledge of doing :)
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