nmostovoy / signalk-raspberry-pi-monitoring Goto Github PK

Sysstat was installed, but environment.rpi.cpu.utilisation just reports 1.
This is on an RPi 4.

pi@GuldenDraak:~ $ uname -r
5.4.51-v7l+

pi@GuldenDraak:~ $ sudo mpstat -P ALL
Linux 5.4.51-v7l+ (GuldenDraak)         09/11/2020      _armv7l_        (4 CPU)

11:16:48 AM  CPU    %usr   %nice    %sys %iowait    %irq   %soft  %steal  %guest  %gnice   %idle
11:16:48 AM  all    3.00    0.00    2.61    0.02    0.00    0.18    0.00    0.00    0.00   94.19
11:16:48 AM    0    3.19    0.00    2.83    0.04    0.00    0.21    0.00    0.00    0.00   93.73
11:16:48 AM    1    2.98    0.00    2.59    0.02    0.00    0.18    0.00    0.00    0.00   94.24
11:16:48 AM    2    2.95    0.00    2.59    0.02    0.00    0.17    0.00    0.00    0.00   94.27
11:16:48 AM    3    2.87    0.00    2.43    0.02    0.00    0.17    0.00    0.00    0.00   94.51

I think this is the same problem as issue #2, which was closed without being resolved.
The problem is the locale dependent presentation of the time of day. In the USA, the time is shown as a 12 hour time with a separate column for AM and PM, while other locales use a 24 hour clock.
This shifted all the columns and messed up the parsing.
By specifying the environment variable as part of the command, the time presentation will be consistent across all systems.
In addition, the sudo is not required for execution of the mpstat command. It just slows things down, so I removed it.

Units should be incorporated into plugin so users don't have manually add them.

Hi,
first, thanks for this great project. The raspberry stats are very useful in Signalk.
However the path "environment.rpi.sd.utilisation" shows just NaN.

First analysis when executing the stored command

df / | grep -v Used | awk '{print $5}' |awk 'gsub("%","")' (after removing the escaping character "")

in Terminal, the following output is shown:

Verw
71

This might be connected to the 'de_DE.UTF-8' locale I'm using, but it seems like the title column is not removed and therefore a type casting from string to int fails.

Raspbian stats (cat /etc/os-release):

PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

Best regards
hailigsbleche