• speedtest-cli from a Pi 2B?

    From Adam Funk@3:770/3 to All on Fri Mar 8 20:36:43 2019
    I'm using a Pi 2B as a lightweight home office server. The lshw
    output says size: 100Mbit/s and capacity: 100Mbit/s for the ethernet connection, & it's plugged into the router, which is plugged into the
    cable modem (both cables are fairly short).

    Are there other limitations on how fast the Pi can receive data that
    would explain lower than expected results from speedtest-cli?


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    microwaving changes the molecular structure of food. THIS IS CALLED
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  • From Gordon Henderson@3:770/3 to a24061@ducksburg.com on Fri Mar 8 21:24:52 2019
    In article <bpealfxr87.ln2@news.ducksburg.com>,
    Adam Funk <a24061@ducksburg.com> wrote:
    I'm using a Pi 2B as a lightweight home office server. The lshw
    output says size: 100Mbit/s and capacity: 100Mbit/s for the ethernet >connection, & it's plugged into the router, which is plugged into the
    cable modem (both cables are fairly short).

    Are there other limitations on how fast the Pi can receive data that
    would explain lower than expected results from speedtest-cli?

    You've not said what results you're getting....

    My own tests with iperf on the early Pi's LAN to LAN showed that it could almost saturate a 100Mb connection, but remember the Pi's Ethernet is
    on USB which is half duplex only, so if downloading from the Interwebs
    and storing to a file on a USB drive will give fairly meaningless results.

    -Gordon

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  • From The Natural Philosopher@3:770/3 to Adam Funk on Fri Mar 8 22:37:47 2019
    On 08/03/2019 15:36, Adam Funk wrote:
    I'm using a Pi 2B as a lightweight home office server. The lshw
    output says size: 100Mbit/s and capacity: 100Mbit/s for the ethernet connection, & it's plugged into the router, which is plugged into the
    cable modem (both cables are fairly short).

    Are there other limitations on how fast the Pi can receive data that
    would explain lower than expected results from speedtest-cli?


    1/. What are you measuring the speed between?
    2/. What is the (sync) speed of your cable connection?


    --
    In a Time of Universal Deceit, Telling the Truth Is a Revolutionary Act.

    - George Orwell

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  • From Adam Funk@3:770/3 to Gordon Henderson on Fri Mar 8 22:28:55 2019
    On 2019-03-08, Gordon Henderson wrote:

    In article <bpealfxr87.ln2@news.ducksburg.com>,
    Adam Funk <a24061@ducksburg.com> wrote:
    I'm using a Pi 2B as a lightweight home office server. The lshw
    output says size: 100Mbit/s and capacity: 100Mbit/s for the ethernet >>connection, & it's plugged into the router, which is plugged into the
    cable modem (both cables are fairly short).

    Are there other limitations on how fast the Pi can receive data that
    would explain lower than expected results from speedtest-cli?

    You've not said what results you're getting....

    Around 26 Mb/s downstream on what's supposed to be a 70 Mb/s
    connection.


    My own tests with iperf on the early Pi's LAN to LAN showed that it could almost saturate a 100Mb connection, but remember the Pi's Ethernet is
    on USB which is half duplex only, so if downloading from the Interwebs
    and storing to a file on a USB drive will give fairly meaningless results.

    Aha! That is exactly the sort of "other limitations" that I needed to
    know about. (The Pi in question has /boot on the SD card & everything
    else on an external USB drive.)

    Thanks.

    --
    If an organization had to assume that anything it did would become
    public in a few years, people within that organization would behave differently. ---Bruce Schneier

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