<div dir="ltr">Try some searches related to setting ulimit default, or at login. There should be a script somewhere where you could set this and it would apply to QGIS and anything else you run.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 15, 2020 at 11:36 AM Mike Flannigan <<a href="mailto:mikeflan@att.net">mikeflan@att.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
Thanks for the response. I think when I double<br>
the ulimit to 2048 I am not really doing anything<br>
positive for QGIS. I think it is just increasing<br>
the ulimit for the terminal window, since each<br>
terminal window appears to have its own ulimit.<br>
<br>
Doubling the ulimit to 2048 also doesn't appear to<br>
fix the problem.<br>
<br>
I notice that when I turn on layers the CPU goes to<br>
100% and stays there for a minute or more (in htop).<br>
If I let it settle back down to near 0%, then QGIS<br>
keeps working. If I keep clicking layers QGIS<br>
freezes.<br>
<br>
<br>
I think my system is fairly beefy, but maybe not:<br>
<br>
CPU: Topology: Quad Core model: Intel Xeon E5-1630 v4 bits: 64 <br>
type: MT MCP arch: Broadwell<br>
rev: 1 L2 cache: 10.0 MiB<br>
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx <br>
bogomips: 59062<br>
Speed: 2854 MHz min/max: 1200/4000 MHz Core speeds (MHz): 1: <br>
1973 2: 1198 3: 1198<br>
4: 1201 5: 1642 6: 1197 7: 1197 8: 1197<br>
<br>
Graphics: Device-1: NVIDIA GP106 [GeForce GTX 1060 6GB]<br>
<br>
<br>
Anyway, this problem is not hindering my work too much.<br>
I will let you know if I find a good solution to it.<br>
<br>
<br>
<br>
Mike<br>
<br>
<br>
<br>
On 6/15/20 9:36 AM, <a href="mailto:qgis-user-request@lists.osgeo.org" target="_blank">qgis-user-request@lists.osgeo.org</a> wrote:<br>
> Date: Mon, 15 Jun 2020 15:31:29 +0200<br>
> From: Régis Haubourg<<a href="mailto:regis.haubourg@gmail.com" target="_blank">regis.haubourg@gmail.com</a>><br>
> To: Mike Flannigan<<a href="mailto:mikeflan@att.net" target="_blank">mikeflan@att.net</a>><br>
> Cc: Qgis Users List - International<<a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a>><br>
> Subject: Re: [Qgis-user] Multiple Layers<br>
> Message-ID:<br>
> <CABgOYCd5LApg3BvqrD=<a href="mailto:t1EtwmoJ1FZJ_6G2AmqktgsQp1%2B-e2A@mail.gmail.com" target="_blank">t1EtwmoJ1FZJ_6G2AmqktgsQp1+-e2A@mail.gmail.com</a>><br>
> Content-Type: text/plain; charset="utf-8"<br>
><br>
> Hi Mike,<br>
> you probably encounter the "max file opened by your system" issue. And shp<br>
> count for 3.<br>
> Best advice is to switch to DB connexions, which do not open any file and<br>
> removes this limit<br>
><br>
> Best regards<br>
> Régis<br>
<br>
<br>
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