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<div class="moz-cite-prefix">This is exactly how the xsce server
works so you may get valuable help from that community (xsce or
iiab). <br>
<br>
A continuing issue is performance of the server in a classroom or
school. One metric is the number of simultaneous connections the
device can support (a classroom of 40-60 is not uncommon).
Response time to requests to the server can be limited by the size
of memory, the speed of access to the sd card, or the processor
speed. I would be very interested in the methodology you propose
since that process would apply equally to the schoolserver. <br>
<br>
One issue is to characterize the workload - how often does a user
request a transaction from the server, what is the time between
requests (when the user is reading the response to the previous
request), how much processing is required for a request (e.g. a
text search), how much information is required to satisfy a
request (e.g. size of file download). So far as I know no one has
attempted this characterization for a classroom. This load could
be different for Sugarizer than for Sugar, but the effort would be
valuable in any case).<br>
<br>
Tony<br>
<br>
On Friday, 02 March, 2018 11:16 PM, Rishabh Nambiar wrote:<br>
</div>
<blockquote type="cite"
cite="mid:qU8gJIPYlzvg6vvkuNQU1RYn3ncy0rt1ldlJWb5GLiDpnZUqbj8DS0qa4dO-NFi4VCkIwg42RzEwJ-22_Wz3yeUPmeZQDbECE-DcJ2VDhZc=@protonmail.com">
<p id="docs-internal-guid-0e43a464-e7d5-d3af-2723-9d4cb2d2bcc5"
style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(0, 0, 0)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:11pt">Hi everyone, <br>
I had a quick chat with Michaël about moving forward
with this GSoC project where he mentioned that the
impact of the project should be discussed with the
community:</span></span></span></span><br>
</p>
<div dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(0, 0, 0)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:11pt"><br class="kix-line-break">
</span></span></span></span></div>
<p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"
dir="ltr"><a style="text-decoration:none;"
href="http://lists.sugarlabs.org/archive/sugar-devel/2018-February/055078.html"
moz-do-not-send="true"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(17, 85, 204)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:11pt"><u>http://lists.sugarlabs.org/archive/sugar-devel/2018-February/055078.html</u></span></span></span></span></a><br>
</p>
<p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"
dir="ltr"><a style="text-decoration:none;"
href="http://lists.sugarlabs.org/archive/sugar-devel/2018-February/055079.html"
moz-do-not-send="true"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(17, 85, 204)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:11pt"><u>http://lists.sugarlabs.org/archive/sugar-devel/2018-February/055079.html</u></span></span></span></span></a><br>
</p>
<h2 style="line-height:1.38;margin-top:18pt;margin-bottom:6pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(0, 0, 0)"><b><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:16pt">Impact of the Sugarizer School
Box</span></span></b></span></span><br>
</h2>
<p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(0, 0, 0)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:11pt">An instructor walks into a
classroom, equipped with a Raspberry Pi 3 or Zero W with
a pre-installed version of the proposed Sugarizer School
Box distribution that Sugar Labs will be working on.<br
class="kix-line-break">
He/she simply connects the Pi to a power supply and
instantly, a local WiFi network is set up, a Sugarizer
server session starts automatically and they’re ready to
go! <br class="kix-line-break">
<br class="kix-line-break">
</span></span><span class="size" style="font-size:11pt"><span
class="font" style="font-family: arial, sans-serif;">Students
can log in to the WiFi AP made by the Pi and visit
sugarizer.org (any other fixed url) on their local
tablets/laptops/phones. So any computer connected to
this WiFi can use the Sugarizer client and any
tablet/phone with Sugarizer apps will benefit from the
collaboration and backup features on the server. All of
these student devices will be served by the Pi Wifi AP.<br>
</span></span></span></span></p>
<h3 style="line-height:1.38;margin-top:16pt;margin-bottom:4pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(67, 67, 67)"><b><span class="font"
style="font-family:"Helvetica Neue""><span
class="size" style="font-size:14pt">Issues</span></span></b></span></span><br>
</h3>
<h4 style="line-height:1.38;margin-top:14pt;margin-bottom:4pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(102, 102, 102)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:12pt">Processing Power</span></span></span></span><br>
</h4>
<p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(0, 0, 0)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:11pt">We’ll have to see how the Pi’s
can cope with the load of serving multiple students
along with the overhead of running a browser session for
a client and the connected display.<br
class="kix-line-break">
I have a Raspberry Pi B+ and a Pi Zero W at my disposal
that I can use to test this so I’ll post the results of
combining sugarizer-server and a WiFi AP soon. It should
do the job as we will not be having too many students on
one Pi.</span></span></span></span></p>
<h4 style="line-height:1.38;margin-top:14pt;margin-bottom:4pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(102, 102, 102)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:12pt">Network Limitations</span></span></span></span><br>
</h4>
<div dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="font"
style="font-family: arial, sans-serif;"><span class="colour"
style="color:rgb(34, 34, 34)"><span class="size"
style="font-size: 14px">It's a straightforward process
to set up a local AP for the Pi with the
sugarizer-server running but if there is a need for
Internet connectivity, then we'll have to set up an
Ethernet bridge to make this possible which is also not
very complicated.</span></span></span><span class="font"
style="font-family:Arial"><span class="colour"
style="color:rgb(102, 102, 102)"><span class="size"
style="font-size: 14px"><br>
</span><span class="size" style="font-size:12pt"><br>
</span><b><span class="size" style="font-size:12pt">UX</span></b></span></span></span></div>
<p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(0, 0, 0)"><span class="font"
style="font-family: arial, sans-serif;"><span class="size"
style="font-size: 14px">The setup process in a classroom
should ideally just be connecting the Pi to a power
supply. <br>
Minor UX features like an auto-redirect to sugarizer.org
after connecting to the WiFi AP can be implemented</span></span><span
class="font" style="font-family:Arial"><span class="size"
style="font-size: 14px">. </span></span></span></span><br>
</p>
<div dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(0, 0, 0)"><span class="font"
style="font-family:Arial"><span class="size"
style="font-size:11pt"></span></span></span></span><br>
</div>
<p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"
dir="ltr"><span class="highlight"
style="background-color:transparent"><span class="colour"
style="color:rgb(0, 0, 0)"><span class="font"
style="font-family:Arial"><b><span class="size"
style="font-size: 16px">If anyone from the community
has any opinions or concerns about how any part of the
School Box experience should be, then that’d be
awesome.</span></b></span></span></span><span
class="size" style="font-size: 16px"><br>
</span><span class="size" style="font-size: 14px"><br>
</span><span class="size" style="font-size: 14px">Regards, </span><span
class="size" style="font-size: 14px"><br>
</span><span class="size" style="font-size: 14px">Rishabh
Nambiar.</span><span class="size" style="font-size: 14px"><br>
</span></p>
<div><br>
</div>
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