What I'm trying to do:
I have a python script that is meant to remotely monitor the CPU usage of another server while it is running a particular application. The only viable way I found to do this was with using the explicit CLI os.system("$GOBIN/rtop [user@ip]"). rtop is something I found online to remotely profile another server, however, there is no option to log the data. It simply prints the results out to your terminal every 5 seconds. What I'm trying to do is store specific values from this ostream into an array to use later.
What I've tried:
I have my code set up using the Process object from the multiprocessing module to allow for the logging process to operate concurrently with the application process, otherwise I wouldn't be recording the CPU under load. My problem arises in recording said output into an array. I've tried using the logging module to recieve the terminal's ostream, but I don't think there is a method to store data outside of a file. I suppose I might be able to create a temporary csv file to hold these values and then call them later but there must be a better method to this. Another roadblock I've hit is trying to discern the values I need from the ostream. The rtop output looks like this:
Load:
0.29 0.45 0.36
CPU:
0.00% user, 0.00% sys, 0.00% nice, 0.00% idle, 0.00% iowait, 0.00% hardirq, 0.00% softirq, 0.00% guest
Processes:
1 running of 977 total
Memory:
free = 1.75 GiB
used = 3.50 GiB
buffers = 721.02 MiB
cached = 1.83 GiB
swap = 15.87 GiB free of 15.87 GiB
Filesystems:
/: 340.48 GiB free of 420.20 GiB
Network Interfaces:
enp8s0 - TEXT, fe80::TEXT
rx = 311.29 MiB, tx = 48.52 MiB
lo - TEXT, ::1/128
rx = 670.56 KiB, tx = 670.56 KiB
The only value I need is the user CPU percentage.
Excerpt of code:
def prof():
# Declare file to capture CPU readings
logger = logging.getLogger('scope.name')
log_file = logging.FileHandler('cpu_Record.log')
logger.addHandler(log_file)
# Execute CLI rtop
os.system("$GOBIN/rtop [user@ip]")
#Capture ostream
#Append array
While this writes the ostream to a file, I would prefer to append the values to an array.
question from:https://stackoverflow.com/questions/65942738/parse-specific-terminal-ostream-values-and-store-into-array-in-python
