Re: LTSP slowness problem

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Sounds like the server is just too weak for the load. RAM matters. Multiple
hard drives can make a big difference.
1g network for only 7 clients is plenty unless its all youtube videos.
On Apr 14, 2015 7:01 AM, "Kenneth Lundstr=C3=B6m" <kenneth.lundstrom@nudata=
.fi>
wrote:

>  Hello everyone,
>
>
> I have a strange problem that I have been trying to solve for months.
>
>
> A client have a setup of 6-7 LTSP terminals and one server. Because of
> room structure we need to have 3 switches, all are 1 GB. Server has one 1=
GB
> network card. As I couldn't get LTSP working on CentOS 7 I switched to
> Ubuntu.
>
>
> Problem is the slowness of the clients. If 1-2 are working everything is
> fine, but when we have like 5 working the same time we get slowness, like
> when writing an email in Thunderbird it just stops showing the writing on
> the screen.
>
>
> I swtich away from KDE to LightDM (I think was the name), still same.
>
>
> One thing we think might be the problem is the filemanager. When somebody
> open filemanager and looks at the folder with like 100 files everything
> stop. All files are on the same server as LTSP is running.
>
>
> Any ideas where to look for the problem and solving it.
>
>
>
> Kenneth
>
>
>
> _______________________________________________
> K12OSN mailing list
> [email protected]
> https://www.redhat.com/mailman/listinfo/k12osn
> For more info see <http://www.k12os.org>
>

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<p dir=3D"ltr">Sounds like the server is just too weak for the load. RAM ma=
tters. Multiple hard drives can make a big difference.<br>
1g network for only 7 clients is plenty unless its all youtube videos.</p>
<div class=3D"gmail_quote">On Apr 14, 2015 7:01 AM, &quot;Kenneth Lundstr=
=C3=B6m&quot; &lt;<a href=3D"mailto:[email protected]">kenneth.lu=
[email protected]</a>&gt; wrote:<br type=3D"attribution"><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex"><u></u>

 =20
 =20
 =20

<div>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt">Hello everyone,<br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt">I have a strange problem that I have been trying to solve for months=
. <br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt">A client have a setup of 6-7 LTSP terminals and one server. Because =
of room structure we need to have 3 switches, all are 1 GB. Server has one =
1GB network card. As I couldn&#39;t get LTSP working on CentOS 7 I switched=
 to Ubuntu. <br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt">Problem is the slowness of the clients. If 1-2 are working everythin=
g is fine, but when we have like 5 working the same time we get slowness, l=
ike when writing an email in Thunderbird it just stops showing the writing =
on the screen. <br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt">I swtich away from KDE to LightDM (I think was the name), still same=
. <br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt">One thing we think might be the problem is the filemanager. When som=
ebody open filemanager and looks at the folder with like 100 files everythi=
ng stop. All files are on the same server as LTSP is running. <br></span></=
p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt">Any ideas where to look for the problem and solving it. <br></span><=
/p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt">Kenneth<br></span></p>
<p style=3D"padding:0;margin:0"><span style=3D"font-family:tahoma;font-size=
:10pt"><br></span></p>
</div>
<br>_______________________________________________<br>
K12OSN mailing list<br>
<a href=3D"mailto:[email protected]">[email protected]</a><br>
<a href=3D"https://www.redhat.com/mailman/listinfo/k12osn" target=3D"_blank=
">https://www.redhat.com/mailman/listinfo/k12osn</a><br>
For more info see &lt;<a href=3D"http://www.k12os.org" target=3D"_blank">ht=
tp://www.k12os.org</a>&gt;<br></blockquote></div>

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