<div dir="auto"><div>Hi Peter, what kind of drive has your laptop? HDD or SDD? Using 80% of RAM is no big issue. If you have a 5200 rpm HDD I would get a decent SDD or NVME (if your laptop supports it) and swap it. That would improve performance a lot.</div><div dir="auto"><br></div><div dir="auto">Cheers<br><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">El vie., 10 ene. 2020 2:01, <<a href="mailto:qgis-user-request@lists.osgeo.org">qgis-user-request@lists.osgeo.org</a>> escribió:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send Qgis-user mailing list submissions to<br>
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Today's Topics:<br>
<br>
1. Thanks (nubantood Khalil)<br>
2. QGIS slows PC to a point it is unusable (Peter Cornelissen)<br>
3. Re: QGIS slows PC to a point it is unusable (Alexandre Neto)<br>
4. Re: QGIS slows PC to a point it is unusable (Nicolas Cadieux)<br>
5. Re: QGIS slows PC to a point it is unusable (Bernhard Ströbl)<br>
6. Re: QGIS slows PC to a point it is unusable (Peter Cornelissen)<br>
7. Re: QGIS slows PC to a point it is unusable (Peter Cornelissen)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Thu, 9 Jan 2020 15:13:25 -0500<br>
From: nubantood Khalil <<a href="mailto:nubantoodkhalil@gmail.com" target="_blank" rel="noreferrer">nubantoodkhalil@gmail.com</a>><br>
To: <a href="mailto:qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">qgis-user@lists.osgeo.org</a><br>
Subject: [Qgis-user] Thanks<br>
Message-ID:<br>
<CANDG4+AjEZKzDJ8D=<a href="mailto:n_h577RV_a1QyOKZB-TcmWrsDMp4VuZEw@mail.gmail.com" target="_blank" rel="noreferrer">n_h577RV_a1QyOKZB-TcmWrsDMp4VuZEw@mail.gmail.com</a>><br>
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<br>
Please add me to your world list<br>
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Message: 2<br>
Date: Thu, 9 Jan 2020 20:42:11 +0000<br>
From: Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>><br>
To: "<a href="mailto:qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">qgis-user@lists.osgeo.org</a>" <<a href="mailto:qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">qgis-user@lists.osgeo.org</a>><br>
Subject: [Qgis-user] QGIS slows PC to a point it is unusable<br>
Message-ID:<br>
<<a href="mailto:AM5PR0802MB2611676F6E3603C6A18D9ACABE390@AM5PR0802MB2611.eurprd08.prod.outlook.com" target="_blank" rel="noreferrer">AM5PR0802MB2611676F6E3603C6A18D9ACABE390@AM5PR0802MB2611.eurprd08.prod.outlook.com</a>><br>
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<br>
Hi<br>
<br>
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.<br>
<br>
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.<br>
<br>
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?<br>
<br>
Thought?<br>
<br>
Peter<br>
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Message: 3<br>
Date: Thu, 9 Jan 2020 23:21:05 +0000<br>
From: Alexandre Neto <<a href="mailto:senhor.neto@gmail.com" target="_blank" rel="noreferrer">senhor.neto@gmail.com</a>><br>
To: Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>><br>
Cc: QGIS User <<a href="mailto:qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">qgis-user@lists.osgeo.org</a>><br>
Subject: Re: [Qgis-user] QGIS slows PC to a point it is unusable<br>
Message-ID:<br>
<<a href="mailto:CA%2BH0G_EVxnPZisAsg_DH3eJ1H10nQSuia0dCcROSiCMzKVnyyw@mail.gmail.com" target="_blank" rel="noreferrer">CA+H0G_EVxnPZisAsg_DH3eJ1H10nQSuia0dCcROSiCMzKVnyyw@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi Peter,<br>
<br>
Try to use Spatialite, Geopackage or (even better) PostGIS to store your<br>
data and create indexes both on the geometries, but also on the fields used<br>
on the rules you mentioned. That can give you a nice boost.<br>
<br>
Hope it helps,<br>
<br>
Alexandre Neto<br>
QGIS Support<br>
<a href="http://www.QCooperative.net" rel="noreferrer noreferrer" target="_blank">www.QCooperative.net</a><br>
<br>
A quinta, 9/01/2020, 20:42, Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>><br>
escreveu:<br>
<br>
> Hi<br>
><br>
> I am finding that although my ShapeFIle tables in QGIS are not huge, my<br>
> Windows 10 PC virtually comes to a grinding halt and becomes unusable once<br>
> I get to something like 50 layers. I am using about 6 or 7 ShapeFiles with<br>
> different filters. I think it is related to the fact that approx. most of<br>
> them having a rule based styles, some with about 20 rules per layer.<br>
><br>
> Restarting the PC sorts things out for a while, but soon as I start<br>
> working on the project it quickly gets slower and again comes to a point<br>
> where it again slows right down.<br>
><br>
> I've not seen anything relate to this issue online and I've seen tables<br>
> which must be huge. Is it likely to be my PC or am I using the wrong<br>
> methods? Would I be better using SpatiaLite to store the tables?<br>
><br>
> Thought?<br>
><br>
> Peter<br>
> _______________________________________________<br>
> Qgis-user mailing list<br>
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<br>
Message: 4<br>
Date: Thu, 9 Jan 2020 18:54:58 -0500<br>
From: Nicolas Cadieux <<a href="mailto:nicolas.cadieux@archeotec.ca" target="_blank" rel="noreferrer">nicolas.cadieux@archeotec.ca</a>><br>
To: Alexandre Neto <<a href="mailto:senhor.neto@gmail.com" target="_blank" rel="noreferrer">senhor.neto@gmail.com</a>><br>
Cc: Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>>, QGIS User<br>
<<a href="mailto:qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">qgis-user@lists.osgeo.org</a>><br>
Subject: Re: [Qgis-user] QGIS slows PC to a point it is unusable<br>
Message-ID: <<a href="mailto:84F438E8-DBD0-41C5-9370-CEC90B978228@archeotec.ca" target="_blank" rel="noreferrer">84F438E8-DBD0-41C5-9370-CEC90B978228@archeotec.ca</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi,<br>
<br>
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>
Nicolas Cadieux<br>
<br>
> Le 9 janv. 2020 à 18:21, Alexandre Neto <<a href="mailto:senhor.neto@gmail.com" target="_blank" rel="noreferrer">senhor.neto@gmail.com</a>> a écrit :<br>
> <br>
> <br>
> Hi Peter,<br>
> <br>
> 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.<br>
> <br>
> Hope it helps,<br>
> <br>
> Alexandre Neto<br>
> QGIS Support<br>
> <a href="http://www.QCooperative.net" rel="noreferrer noreferrer" target="_blank">www.QCooperative.net</a><br>
> <br>
> A quinta, 9/01/2020, 20:42, Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>> escreveu:<br>
>> Hi<br>
>> <br>
>> 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.<br>
>> <br>
>> 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.<br>
>> <br>
>> 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?<br>
>> <br>
>> Thought?<br>
>> <br>
>> Peter<br>
>> _______________________________________________<br>
>> Qgis-user mailing list<br>
>> <a href="mailto:Qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">Qgis-user@lists.osgeo.org</a><br>
>> List info: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" rel="noreferrer noreferrer" target="_blank">https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
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<br>
Message: 5<br>
Date: Fri, 10 Jan 2020 07:31:05 +0100<br>
From: Bernhard Ströbl <<a href="mailto:bernhard.stroebl@jena.de" target="_blank" rel="noreferrer">bernhard.stroebl@jena.de</a>><br>
To: <a href="mailto:qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">qgis-user@lists.osgeo.org</a><br>
Subject: Re: [Qgis-user] QGIS slows PC to a point it is unusable<br>
Message-ID: <<a href="mailto:f11c40e8-07b5-4236-2fe5-38aa4bc3c945@jena.de" target="_blank" rel="noreferrer">f11c40e8-07b5-4236-2fe5-38aa4bc3c945@jena.de</a>><br>
Content-Type: text/plain; charset=windows-1252; format=flowed<br>
<br>
Hi Peter,<br>
to me this sounds like a problem with a badly coded plugin. Unload _all_ <br>
plugins and see if the permformance improves. If it does reload the <br>
plugins one by one to identify which is causing the trouble.<br>
Of course you can also improve performance by indexing your shape files <br>
or using another data provider altogeher as has been proposed.<br>
Bernhard<br>
<br>
Am 09.01.2020 um 21:42 schrieb Peter Cornelissen:<br>
> Hi<br>
> <br>
> 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.<br>
> <br>
> 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.<br>
> <br>
> 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?<br>
> <br>
> Thought?<br>
> <br>
> Peter<br>
> <br>
> <br>
> <br>
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<br>
Message: 6<br>
Date: Fri, 10 Jan 2020 07:58:47 +0000<br>
From: Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>><br>
To: Nicolas Cadieux <<a href="mailto:nicolas.cadieux@archeotec.ca" target="_blank" rel="noreferrer">nicolas.cadieux@archeotec.ca</a>><br>
Cc: Alexandre Neto <<a href="mailto:senhor.neto@gmail.com" target="_blank" rel="noreferrer">senhor.neto@gmail.com</a>>, QGIS User<br>
<<a href="mailto:qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">qgis-user@lists.osgeo.org</a>><br>
Subject: Re: [Qgis-user] QGIS slows PC to a point it is unusable<br>
Message-ID:<br>
<<a href="mailto:HE1PR0802MB261780032504C9DDDADED84E93380@HE1PR0802MB2617.eurprd08.prod.outlook.com" target="_blank" rel="noreferrer">HE1PR0802MB261780032504C9DDDADED84E93380@HE1PR0802MB2617.eurprd08.prod.outlook.com</a>><br>
<br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi guy<br>
<br>
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.<br>
<br>
Peter<br>
<br>
On 9 Jan 2020 23:54, Nicolas Cadieux <<a href="mailto:nicolas.cadieux@archeotec.ca" target="_blank" rel="noreferrer">nicolas.cadieux@archeotec.ca</a>> wrote:<br>
Hi,<br>
<br>
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>
Nicolas Cadieux<br>
<br>
Le 9 janv. 2020 à 18:21, Alexandre Neto <<a href="mailto:senhor.neto@gmail.com" target="_blank" rel="noreferrer">senhor.neto@gmail.com</a>> a écrit :<br>
<br>
<br>
Hi Peter,<br>
<br>
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.<br>
<br>
Hope it helps,<br>
<br>
Alexandre Neto<br>
QGIS Support<br>
<a href="http://www.QCooperative.net" rel="noreferrer noreferrer" target="_blank">www.QCooperative.net</a><<a href="https://nam02.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%7C361a1324c82b4e45bea608d7955f5e75%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637142109151053426&sdata=xFB6Zc%2BZL7ywqFovKwvgudiTRRy9lOMSL72UG0EKL38%3D&reserved=0" rel="noreferrer noreferrer" target="_blank">https://nam02.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%7C361a1324c82b4e45bea608d7955f5e75%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637142109151053426&sdata=xFB6Zc%2BZL7ywqFovKwvgudiTRRy9lOMSL72UG0EKL38%3D&reserved=0</a>><br>
<br>
A quinta, 9/01/2020, 20:42, Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a><mailto:<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>>> escreveu:<br>
Hi<br>
<br>
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.<br>
<br>
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.<br>
<br>
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?<br>
<br>
Thought?<br>
<br>
Peter<br>
_______________________________________________<br>
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Message: 7<br>
Date: Fri, 10 Jan 2020 08:00:02 +0000<br>
From: Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>><br>
To: Nicolas Cadieux <<a href="mailto:nicolas.cadieux@archeotec.ca" target="_blank" rel="noreferrer">nicolas.cadieux@archeotec.ca</a>><br>
Cc: Alexandre Neto <<a href="mailto:senhor.neto@gmail.com" target="_blank" rel="noreferrer">senhor.neto@gmail.com</a>>, QGIS User<br>
<<a href="mailto:qgis-user@lists.osgeo.org" target="_blank" rel="noreferrer">qgis-user@lists.osgeo.org</a>><br>
Subject: Re: [Qgis-user] QGIS slows PC to a point it is unusable<br>
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Sorry I meant to say that the memory IS the problem!!<br>
<br>
On 10 Jan 2020 07:58, <a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a> wrote:<br>
Hi guy<br>
<br>
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.<br>
<br>
Peter<br>
<br>
On 9 Jan 2020 23:54, Nicolas Cadieux <<a href="mailto:nicolas.cadieux@archeotec.ca" target="_blank" rel="noreferrer">nicolas.cadieux@archeotec.ca</a>> wrote:<br>
Hi,<br>
<br>
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>
Nicolas Cadieux<br>
<br>
Le 9 janv. 2020 à 18:21, Alexandre Neto <<a href="mailto:senhor.neto@gmail.com" target="_blank" rel="noreferrer">senhor.neto@gmail.com</a>> a écrit :<br>
<br>
<br>
Hi Peter,<br>
<br>
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.<br>
<br>
Hope it helps,<br>
<br>
Alexandre Neto<br>
QGIS Support<br>
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A quinta, 9/01/2020, 20:42, Peter Cornelissen <<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a><mailto:<a href="mailto:peter@cornelissen.org.uk" target="_blank" rel="noreferrer">peter@cornelissen.org.uk</a>>> escreveu:<br>
Hi<br>
<br>
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.<br>
<br>
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.<br>
<br>
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?<br>
<br>
Thought?<br>
<br>
Peter<br>
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End of Qgis-user Digest, Vol 167, Issue 11<br>
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