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by not_the_messiah
Sun Sep 01, 2019 6:00 pm
Forum: Troubleshooting
Topic: RPI4 Poor Network Speeds
Replies: 16
Views: 675

Re: RPI4 Poor Network Speeds

Any speed tests must be done using wired network connections only. Speed tests done where either device is on wifi, or there is wifi in the path between them, are invalid since the wifi will cause a slowdown, no matter how fast the wifi device says it is connected. It seems that the Pi 4 is auto-ne...
by not_the_messiah
Sun Sep 01, 2019 4:57 pm
Forum: Troubleshooting
Topic: RPI4 Poor Network Speeds
Replies: 16
Views: 675

Re: RPI4 Poor Network Speeds

Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full This is not a gigabit switch or the cable between the switch and the Pi 4 is not “cat. 5E”, “cat 6” or 7. In consequence the Pi downgrades to fast Ethernet speed, 100Mbps, about 10MB/s max data transfer speed....
by not_the_messiah
Sun Sep 01, 2019 2:45 pm
Forum: Troubleshooting
Topic: RPI4 Poor Network Speeds
Replies: 16
Views: 675

Re: RPI4 Poor Network Speeds

mikronauts wrote:
Sun Sep 01, 2019 2:27 pm
Make sure the drives are not using ntfs.
No, all drives are formatted as Ext4. But if the drive format was an issue, then the write speed from the Pi4 would also suffer, wouldn't it?
by not_the_messiah
Sun Sep 01, 2019 1:01 pm
Forum: Troubleshooting
Topic: RPI4 Poor Network Speeds
Replies: 16
Views: 675

Re: RPI4 Poor Network Speeds

Thanks for the reply :) Output from ethtool: Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: ...
by not_the_messiah
Sun Sep 01, 2019 12:18 pm
Forum: Troubleshooting
Topic: RPI4 Poor Network Speeds
Replies: 16
Views: 675

Re: RPI4 Poor Network Speeds

To try to narrow it down, perhaps run a test of just the network performance against your RPi via the network infrastructure it is using. The iperf3 tool might be a good choice for this. Thanks for the pointer. I have run it from another RPi (ethernet) and my Win10 laptop (WiFi) with results along ...
by not_the_messiah
Sun Sep 01, 2019 12:03 pm
Forum: Troubleshooting
Topic: RPI4 Poor Network Speeds
Replies: 16
Views: 675

Re: RPI4 Poor Network Speeds

Try doing the flow control stuff. It's an experiment you can try that won't hurt even if it doesn't work. Ok, done (I think) - having trouble getting Flow Acceleration working (Asus Router), but I have CTF enabled. Resulted in a minor boost to about 5.4Mb/s, which is still way off what it should be!
by not_the_messiah
Sat Aug 31, 2019 5:13 pm
Forum: Troubleshooting
Topic: RPI4 Poor Network Speeds
Replies: 16
Views: 675

Re: RPI4 Poor Network Speeds

Thanks, but I don't see how that is relevant, given it's a Pi3B+ and their issue is access speed via a VPN from the WAN?
by not_the_messiah
Sat Aug 31, 2019 4:20 pm
Forum: Troubleshooting
Topic: RPI4 Poor Network Speeds
Replies: 16
Views: 675

RPI4 Poor Network Speeds

Hi Everyone, I have recently bought and configured my RPI4 to be a NAS. I have two 4tb drives connected to the two USB3 ports in a RAID1 configuration and the pi is connected to my network via ethernet. When writing dd output to the RAID array, I get write speeds of about 140MB/s, which is fine for ...
by not_the_messiah
Sun Mar 06, 2016 12:35 pm
Forum: Automation, sensing and robotics
Topic: 240v relays for boiler control
Replies: 7
Views: 2753

Re: 240v relays for boiler control

Ok I think we are going to get a 2-channel 240v relay switcher designed for an arduino (like the link posted further up this post) and connect this to the Pi GPIOs. My old man will be doing all the wiring into the mains as he knows what he is doing in this regard so don't worry about me blowing mys...
by not_the_messiah
Sun Mar 06, 2016 10:25 am
Forum: Beginners
Topic: Boiler Control
Replies: 10
Views: 1755

Re: Boiler Control

1-wire may worth looking at, cheap and reliable. It's not quite so popular or ready-built modules so easily available in the UK as EU and US but see http://www.sheepwalkelectronics.co.uk/ Thank you. So will this ( http://www.sheepwalkelectronics.co.uk/product_info.php?products_id=60 ) will do the j...
by not_the_messiah
Sun Mar 06, 2016 10:13 am
Forum: Beginners
Topic: Boiler Control
Replies: 10
Views: 1755

Re: Boiler Control

fruit-uk wrote:
not_the_messiah wrote:Same here - few 'tingles' over the years though :P
I think many of us olduns learnt a lot that way - not allowed any more of course :/
Definitely not - it can kill after all!
by not_the_messiah
Sun Mar 06, 2016 10:08 am
Forum: Beginners
Topic: Boiler Control
Replies: 10
Views: 1755

Re: Boiler Control

Thanks for the reply :) My boiler control is pretty simple. I wired a relay board across the contacts of the time switch and turned the time switch to off. My Pi turns the relay on when the house gets too cold (depends on time of day), and off when it is warm enough. The Time switch only triggers th...
by not_the_messiah
Sun Mar 06, 2016 8:28 am
Forum: Beginners
Topic: Boiler Control
Replies: 10
Views: 1755

Re: Boiler Control

Hi there, Thanks for the reply :) I've had a read of your blog (impressive amount of work!), but I'm more interested in having the Pi control the boiler directly rather than through a third party bit of kit. If that isn't possible, the boiler control you've used seems more than sufficient. Can what ...
by not_the_messiah
Sat Mar 05, 2016 10:55 pm
Forum: Beginners
Topic: Boiler Control
Replies: 10
Views: 1755

Boiler Control

Hi there, Apologies for posting on a topic that has been asked about before, but in my defence, the threads I have read on the subject are a little beyond me at the moment, so helping for some help in lamens terms... What I want to accomplish is to replace my existing boiler control unit with a Pi t...

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