Re: Ris: Atom Fat Clients

Hi Alkis, 

thanks for answering! 

I've followed your guide here (pnp): 

http://wiki.ltsp.org/wiki/Installation/Ubuntu 

After server updating I run ltsp-update-image --cleanup. 

I'm installing now the 32 bit Mate on a pure server (no virtual).

---

Giacomo Trovato

Il 19/01/2019 07:54 Alkis Georgopoulos ha scritto:

> Did you test with the same kernel/driver etc?
> Because if for example you update the LTSP system,
> and you don't update the local system,
> then you're testing different kernels, which may be where the problem is.
> 
> The LTSP differences for *fat* clients vs local installatios are:
> 1) SSHFS home: some applications have issues with file locks etc over SSHFS. To see if this is the problem, mount a local disk partition as /home before login. Make sure that a /home/username folder exists AND is owned by the user.
> 2) NBD swap: it's some times more unstable than local swap.
> To see if this is the problem, disable NBD_SWAP and enable local swap.
> `cat /proc/swaps` on the client will show if you managed to do it properly.
> 3) Session starting: it uses LDM/ssh/su instead of LightDM.
> This may cause missing panels or inability to unlock screensaver in some cases, but it shouldn't cause instability or crashes. So no need to test this.
> 
> Alkis
> 
> Στις 19/1/19 8:21 π.μ., ο giacomo-o6+VoJyZ4uJWk0Htik3J/[email protected] έγραψε: 
> 
>> Already tested.
>> Locally they seem faster and no crashes on browsers.
>> Where is the problem with LTSP?
>> 
>> Giacomo Trovato
>> 
>> -------- Messaggio originale --------
>> Oggetto: Re: [Ltsp-discuss] Atom Fat Clients
>> Da: Άλκης Γεωργόπουλος
>> A: giacomo-o6+VoJyZ4uJWk0Htik3J/[email protected],ltsp-discuss
>> CC:
>> 
>> Try installing mate locally on a fat client.
>> This will show if it's a problem with ltsp or not.
>> 
>> Στις Σάβ, 19 Ιαν 2019, 00:26 ο χρήστης Giacomo Trovato
>> <giacomo-o6+VoJyZ4uJWk0Htik3J/[email protected] <mailto:giacomo-o6+VoJyZ4uJWk0Htik3J/[email protected]>> έγραψε:
>> 
>> Hi All,
>> 
>> I'm still struggling on bad performances and crashes (Chromium
>> and Firefox) on ATOM D410 fat clients (2 GB RAM).
>> 
>> I'm using Ubuntu Mate 18.04 (kernel 4.15.0-43) 32 bit.
>> 
>> My server is virtual (ESXI); can this have impact on the
>> performances?
>> 
>> Is there a way for improving the browsing performances? Perhaps
>> configuring cache locally and not on the server?
>> 
>> I've tried 64 bit (same kernel) but the fat clients hang during
>> the boot (no Ethernet connection), so I assume there is a
>> problem on the driver of the NIC (RTL8101/2/6E PCI Express Fast
>> Gigabit).
>> 
>> Is there someone using such poor hardware?
>> 
>> Any hint is very appreciated since are 10 years that I'm working
>> with LTSP and I had proposed such solution to renovate some
>> computer classrooms, promising better performances than Windows!
>> I don't want to install Mate on every PCs, losing the great
>> flexibility of LTSP!
>> 
>> Thank you!
>> 
>> --         Giacomo Trovato
>> 
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