Re: [gentoo-user] network transfer speed

On 1/15/21 6:26 AM, Hogren wrote:
>
> On 15/01/2021 09:34, Raffaele BELARDI wrote:
>>
>> ST Restricted
>>
>>> -----Original Message-----
>>> From: Hogren <hogren@×××××.com>
>>> Sent: Friday, January 15, 2021 08:50
>>> To: gentoo-user@l.g.o
>>> Subject: Re: [gentoo-user] network transfer speed
>>>
>>>
>>> On 15/01/2021 07:56, thelma@×××××××××××.com wrote:
>>> Hello
>>>> On both of my systems the network card speed is showing 1000
>>>> cat /sys/class/net/enp4s0/speed   1000
>>>>
>>>> but when I do rsync larage file I only see about: 20 to 22MB/s On my
>>>> home network I get about 110MB/s between PC's
>>>>
>>>> Both PC's have SSD  and the swith is Gigabit (I think).
>>>> How to find a the bottleneck?
>>>>
>>> 20MB = 80Mb so it sounds like your network is a 100Mb network. What is the
>>> perfs of your switch(s) between your systems ?
>> I disagree, /sys/class/net/enp4s0/speed shows the speed negotiated by the network card with the switch, it cannot be 1000 if the switch is a only a 10/100. I think we can safely assume the network is a gigabit one.
>>
>> raffaele
>
> Yes, I thought about that after. But may be he has several switchs between the two systems.
>
> Hogren

I just checked the remote location and there are two swiches:
- D-link Green Technology (I think it is DSG-1005D
- Trident Gigabit Switch  - TEG-S80g
 
They are both Gigabit switches.