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From: Adrian <bulleid@ku.gro.lioff>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: What do I need to go with a Pi 4
Date: Mon, 15 Apr 2024 18:59:00 +0100
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In message <Q1Um1HLk7VGmFwj8@ku.gro.lloiff>, Adrian 
<bulleid@ku.gro.lioff> writes
>In message <BgBGXbDiy9FmFwYk@ku.gro.lloiff>, Adrian 
><bulleid@ku.gro.lioff> writes
>>Pi4, power supply and HDMI lead on order.  I was hoping that they 
>>would arrive today, but DHL seem to think that they would prefer to 
>>spend their day at their local depot.
>>
>
>After spending a day at the depot, it was sent out for delivery today. 
>According to the 07:58 email, it should have been with me between 10:19 
>and 11:19.  According to the tracking site, at 10:30 I was the next 
>drop. At 14:20 I gave up waiting and went out.  Parcel arrived at 
>14:40, and was left next to the front door, fortunately not obvious 
>from the road.
>
>Work is now underway to install the software etc. on the new Pi.
>
>Thanks again for all the help.
>
>Adrian


Noting the discussions elsewhere on the thread, I though the following 
might be useful.  I take various readings every minute including the CPU 
temperature, the ambient temperature and the CPU loading.  Having now 
had the Pi4 installed in its new home, the following is from the first 
full 24 hour period (min max mean) :

CPU Temp        36.5    51.1    41.1
Ambient temp    12.7    18.5    15.6
CPU load %      0.00    1.31    0.09

It will be interesting to see how that works out over a longer period.

Performance wise, it is a vast improvement.  Prior to the upgrade on 
matplotlib, I had one job running every 10 minutes, taking 5-6 minutes 
(11-12 minutes post software upgrade).  That now runs in under 1 minute.

Adrian
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