IRC chat logs for #ltsp on irc.libera.chat (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.
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| 09:05 | <alkisg> !ltsp-pnp
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| 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
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| 09:05 | <alkisg> Try this, it will boot it as a diskless ltsp fat client instead, and performance will be fine
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| 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
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| 09:19 | <alkisg> !fatclients
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| 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
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| 09:19 | <alkisg> There's another way, to create a fat chroot
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| 09:25 | railR: I think you could try ltsp-pnp without modifying your server, though
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| 09:25 | It would include the "lot of stuff" for the clients as well
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| 09:25 | E.g. if you installed software, the clients will automatically get it
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| 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 ?
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| 14:00 | what is the threshold ?
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| 14:01 | <||cw> depends on the apps you want to run
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| 14:02 | <sebd_> mostly firefox, thunderbird, libreoffice
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| 14:02 | all at the same time
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| 14:02 | <||cw> 2GB is plenty for a lot of apps
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| 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
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| 14:03 | I'd say 2G and socket 775 or better is fine for most office productivity uses
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| 14:04 | <sebd_> ok
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| 14:04 | <||cw> especially if you have gigE
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| 14:04 | <sebd_> yes we do have gigE
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| 14:04 | <||cw> in which case you might consider some port bonding on the server
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| 14:04 | <sebd_> port bonding ?
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| 14:04 | <||cw> unless it's got 10gE to the switch
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| 14:05 | https://www.kernel.org/doc/Documentation/networking/bonding.txt
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| 14:05 | <sebd_> no 10gE
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| 14:05 | * sebd_ rtfm | |
| 14:05 | sebd_ 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
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| 14:06 | <sebd> ok
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| 14:07 | we have 20 thin clients here
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| 14:07 | it might not make a big difference, they rarely play fullscreen videos
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| 14:07 | <||cw> might not have any issues with one nic, so do that first. it's not too hard to add it later
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| 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.
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| 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
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| 17:35 | I'm proposing a change from how it works now
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| 17:35 | I.e. the lts.conf file location will be in the same dir as BOOT_IMAGE, not pointed to by dhcpd.conf
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| 17:36 | <vagrantc> hrm
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| 17:36 | <alkisg> But this is much more easy to configure and understand than "special case PXEClient or Linux ipconfig or udhcpc"
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| 17:36 | And I don't think we're shipping a proper dhcpd.conf anyway
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| 17:36 | <vagrantc> suppose that's true
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| 17:36 | what's improper about the shipped dhcpd.conf?
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| 17:37 | <alkisg> if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" { filename "/ltsp/i386/pxelinux.0"; } else { filename "/ltsp/i386/nbi.img"; }
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| 17:37 | People are supposed to understand that nbi.img gets translated to lts.conf?
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| 17:38 | ...because the initramfs-tools doesn't match PXEClient... *if* ipappend 3 isn't set...
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| 17:38 | Chaos
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| 17:39 | <vagrantc> do we even support nbi.img anymore?
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| 17:39 | at one point, i seem to recall having some configuration that explicitly specified the lts.conf
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| 17:40 | but sure, keeping it in the same directory as BOOT_IMAGE makes sense.
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| 17:40 | <alkisg> I think we have something in dnsmasq.conf
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| 17:40 | But it's klibc specific, it checks for "Linux ipconfig"
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| 17:41 | So the question is, do we need to notify anyone in some README file or so?
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| 17:41 | <vagrantc> i think it would be good to do so, sure.
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| 17:42 | <alkisg> vagrantc: btw from yesterday I'm a Debian Maintainer for LTSP, thank you!!! :)
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| 17:45 | <vagrantc> alkisg: oh, did someone grant you upload rights?
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| 17:45 | alkisg: or just your account was created?
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| 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
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| 17:48 | I didn't see anything about upload rights, I guess that's up to you?
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| 17:48 | We'll do that in debconf, I'll be keeping notes then
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| 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
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| 17:50 | which, i look forward to have the privledge of doing :)
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