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<div class="moz-cite-prefix">Look, don't throw good money after bad.
<br>
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<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">You're only going to be able to get so
much memory in a laptop. If you want to do RAM-intensive things
and don't have a way to make them less intensive (i.e., offloading
some of the business to PostGIS, etc.) then you're going to need
to be thinking about hardware that can hold a lot of memory and
just using your laptop as a frontend. I also can't recommend
getting away from spinny-thing storage enough unless you simply
need to store as many TiB in as small a space as possible.<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">I will also heartily recommend getting
Windows and other Microsoft products out of your life. I have a
Gentoo Linux machine sitting beside me here with a full GUI going
and it's running on less than 1GiB of its 16GiB of RAM. The
PostGIS machine next to it that has no GUI is taking 256<u><b>M</b></u>iB
of its 16GiB. <br>
</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">On 1/10/20 10:45 AM, Peter Cornelissen
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:HE1PR0802MB2617364CF85324F243DAD047BE380@HE1PR0802MB2617.eurprd08.prod.outlook.com">
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<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
<div style="color: rgb(0, 0, 0); font-family:
Calibri,Arial,Helvetica,sans-serif; font-size: 12pt;
background-color: rgb(255, 255, 255);">
<span>HI Nicolas</span></div>
<div style="color: rgb(0, 0, 0); font-family:
Calibri,Arial,Helvetica,sans-serif; font-size: 12pt;
background-color: rgb(255, 255, 255);">
<span><br>
</span></div>
<div style="color: rgb(0, 0, 0); font-family:
Calibri,Arial,Helvetica,sans-serif; font-size: 12pt;
background-color: rgb(255, 255, 255);">
<span>Thanks. I'm not happy about messing with the bios though,
I think I'll leave that and consider a new laptop with more
memory. I'll see how it goes using GeoPackage to startw thi
and take it from there.</span></div>
<div style="color: rgb(0, 0, 0); font-family:
Calibri,Arial,Helvetica,sans-serif; font-size: 12pt;
background-color: rgb(255, 255, 255);">
<span><br>
</span></div>
<div style="color: rgb(0, 0, 0); font-family:
Calibri,Arial,Helvetica,sans-serif; font-size: 12pt;
background-color: rgb(255, 255, 255);">
<span>Peter</span></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b>
Nicolas Cadieux <a class="moz-txt-link-rfc2396E" href="mailto:nicolas.cadieux@archeotec.ca"><nicolas.cadieux@archeotec.ca></a><br>
<b>Sent:</b> 10 January 2020 12:42<br>
<b>To:</b> Peter Cornelissen <a class="moz-txt-link-rfc2396E" href="mailto:peter@cornelissen.org.uk"><peter@cornelissen.org.uk></a><br>
<b>Cc:</b> Alexandre Neto <a class="moz-txt-link-rfc2396E" href="mailto:senhor.neto@gmail.com"><senhor.neto@gmail.com></a>; QGIS
User <a class="moz-txt-link-rfc2396E" href="mailto:qgis-user@lists.osgeo.org"><qgis-user@lists.osgeo.org></a><br>
<b>Subject:</b> Re: [Qgis-user] QGIS slows PC to a point it is
unusable</font>
<div> </div>
</div>
<div dir="auto">Hi,
<div><br>
<div>Try going into the computer bios. Perhaps you can reduce
the memory allocation for the video card. Nice to know
GeoPackage option seems to help.<br>
<br>
<div dir="ltr">Nicolas Cadieux</div>
<div dir="ltr"><br>
<blockquote type="cite">Le 10 janv. 2020 à 03:01, Peter
Cornelissen <a class="moz-txt-link-rfc2396E" href="mailto:peter@cornelissen.org.uk"><peter@cornelissen.org.uk></a> a écrit :<br>
<br>
</blockquote>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="auto">Sorry I meant to say that the memory IS
the problem!!</div>
<div class="x_gmail_extra"><br>
<div class="x_gmail_quote">On 10 Jan 2020 07:58,
<a class="moz-txt-link-abbreviated" href="mailto:peter@cornelissen.org.uk">peter@cornelissen.org.uk</a> wrote:<br
type="attribution">
<blockquote class="x_quote" style="margin:0 0 0
.8ex; border-left:1px #ccc solid;
padding-left:1ex">
<div dir="auto">Hi guy
<div dir="auto"><br>
</div>
<div dir="auto">Thanks for the feedback. I've
checked and as my PC slows down it reaches the
point where QGIS is using 79% of the memory,
so there's no problem. Unfortunately there's
not much I can do about it as it is a laptop
and is already at its maximum of 8GB and is
using 1.8GB for the video. I'll rebuild using
Geo Packages as that seems like the way
forward. I can't really make use of PostGIS as
I need to port to QField.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Peter</div>
</div>
<div><br>
<div class="x_elided-text">On 9 Jan 2020 23:54,
Nicolas Cadieux
<a class="moz-txt-link-rfc2396E" href="mailto:nicolas.cadieux@archeotec.ca"><nicolas.cadieux@archeotec.ca></a> wrote:<br
type="attribution">
<blockquote style="margin:0 0 0 0.8ex;
border-left:1px #ccc solid;
padding-left:1ex">
<div dir="auto">Hi,
<div><br>
<div>You are likely running out of
memory. Do a control-alt-delete and
look at the memory usage. Look at the
memory, disk and cpu usage before
starting QGIS and once the project is
loaded and working. Turn off unwanted
plugins. Make sure you don’t have a
virus or some background process using
your cpus. You should probably have 8
to 16 GB of memory. Is this a laptop?
Is the laptop sharing the video
memory with the system memory?<br>
<br>
<div dir="ltr">Nicolas Cadieux</div>
<div dir="ltr"><br>
<blockquote>Le 9 janv. 2020 à 18:21,
Alexandre Neto
<a class="moz-txt-link-rfc2396E" href="mailto:senhor.neto@gmail.com"><senhor.neto@gmail.com></a> a
écrit :<br>
<br>
</blockquote>
</div>
<blockquote>
<div dir="ltr">
<div dir="auto">
<div dir="auto">Hi Peter,</div>
<div dir="auto"><br>
</div>
Try to use Spatialite,
Geopackage or (even better)
PostGIS to store your data and
create indexes both on the
geometries, but also on the
fields used on the rules you
mentioned. That can give you a
nice boost.
<div dir="auto"><br>
</div>
<div dir="auto">Hope it helps,</div>
<div dir="auto"><br>
</div>
<div dir="auto">Alexandre Neto</div>
<div dir="auto">QGIS Support</div>
<div dir="auto"><a
href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsmex-ctp.trendmicro.com%3A443%2Fwis%2Fclicktime%2Fv1%2Fquery%3Furl%3Dhttp%253a%252f%252fwww.QCooperative.net%26umid%3D78acbac1-d0a0-4165-8391-f7bc9498c22c%26auth%3Dbf81fa88bf46c441e3fa0c29e31e35617988196f-aeddc0339af5f50edc3ba0398521cba4a48bd09f&data=02%7C01%7C%7C0a6fe8d2bc5846f611a508d795ca9542%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637142569628060192&sdata=CIdLZHE1E%2FfBMx1H55Kjyuxd5BR4N%2BfUzoQMW51ViNg%3D&reserved=0"
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<br>
<div class="x_elided-text">
<div dir="ltr">A quinta,
9/01/2020, 20:42, Peter
Cornelissen <<a
href="mailto:peter@cornelissen.org.uk"
moz-do-not-send="true">peter@cornelissen.org.uk</a>>
escreveu:<br>
</div>
<blockquote style="margin:0 0 0
0.8ex; border-left:1px #ccc
solid; padding-left:1ex">
<div dir="ltr">
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
Hi</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
<br>
</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
I am finding that although
my ShapeFIle tables in
QGIS are not huge, my
Windows 10 PC virtually
comes to a grinding halt
and becomes unusable once
I get to something like 50
layers. I am using about 6
or 7 ShapeFiles with
different filters. I think
it is related to the fact
that approx. most of them
having a rule based
styles, some with about 20
rules per layer.</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
<br>
</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
Restarting the PC sorts
things out for a while,
but soon as I start
working on the project it
quickly gets slower and
again comes to a point
where it again slows right
down.</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
<br>
</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
I've not seen anything
relate to this issue
online and I've seen
tables which must be huge.
Is it likely to be my PC
or am I using the wrong
methods? Would I be better
using SpatiaLite to store
the tables?</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
<br>
</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
Thought?</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
<br>
</div>
<div style="color:rgb(0 ,0
,0); font-family:'calibri'
,'arial' ,'helvetica'
,sans-serif;
font-size:12pt;
background-color:rgb(255
,255 ,255)">
Peter</div>
</div>
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