asked on

Bandwidth usage given a process id

Given a process id I can get reference to Process object by

int processID = 0;
//initialize processID from whatever
System.Diagnostics.Process process =
System.Diagnostics.Process.GetProcessById(processID);

Now what I'd like to do is figure out how much bandwidth that particular process is using up. I know what ports in particular it is using but it would also be nice to know how to figure out what ports a process is using and there current state.

At any rate my main question how do I determine how many bytes, packets, etc that this process is either downloading or uploading?

Code is much appreciated as I just switched over to c# from c++.

Thanks

Tom Knowlton

You are talking about monitoring an FTP session while it is downloading something, fo example?

Tom Knowlton

One thing you might try:

1) Create your own VERY simple FTP client in C#.
2) Hook into the process id (in Task Manager) while the FTP client is at rest.
3) Make note of the amount of RAM used by the process while at rest.
4) Start a download of a file who's size you know in advance.
5) Record the additional RAM consumption and see if it adds up.

I am at a loss as to how you would monitor the bandwidth......very interesting problem!

PerryDK

ASKER

No I'm not talking about FTP.

Lets say:
Internet BackGammon is running with pid 1
Some FTP Client with pid 2
Instant Messenger with pid 3
...

I can get the protocol, ports, pid associated with a given process by using
C:\Documents and Settings>netstat -n -o

Active Connections

Proto Local Address Foreign Address State PID
TCP 192.168.0.101:1248 192.168.0.1:5678 CLOSE_WAIT 696
TCP 192.168.0.101:1700 192.168.0.1:5678 TIME_WAIT 0
TCP 192.168.0.101:1701 192.168.0.1:5678 TIME_WAIT 0
...
TCP 192.168.0.101:1800 192.168.0.1:5678 TIME_WAIT 0
TCP 192.168.0.101:1801 192.168.0.1:5678 TIME_WAIT 0
TCP 192.168.0.101:4927 207.46.106.140:1863 ESTABLISHED 852

I can also get overall statistics such as
C:\Documents and Settings>netstat -e
Interface Statistics

Received Sent

Bytes 220854897 158609049
Unicast packets 792485 943036
Non-unicast packets 85678 1832
Discards 0 0
Errors 0 0
Unknown protocols 10245

Now the problem lies in that the EthernetStatistics I get from using the netstat -e command are overall statistics. What I'd like to do is either through some command line utility (must come with windows or is freeware) or by doing it programmitically in C# is:

C:\Documents and Settings>netstat -pid=1
Internet BackGammon Statistics
Received Sent
Bytes 220854897 158609049

Note the above does not work its just an example of the output I would like to create.

In otherwords I want to monitor the bandwidth usage of a given process.

I hope that helps explains things further.

PerryDK

ASKER

Also would be nice to know how to get same info from netstat -e in C#

Currently I am executing netstat -e and redirecting the standard output...although there is probably a function call or something similar I could be using.

PerryDK

ASKER

Never mind on last comment figured out how with PerformanceCounters...but would still very much like to know how to track the information down to a given process.

ErikPhilips

You should see if IIS has its own performance counters. I'm thinking you are looking at OS performance counters. I can't imagine that IIS doesn't have its own performance counters. (if you don't see them by default you'll most likely have to turn them on, I would imagine they are off by default because they use system resources, why waste that information if no one is watching :).

ErikPhilips

Whoops I missed your comment "No I'm not talking about FTP."

PerryDK

ASKER

You'll have to forgive me...I am very new to C# (4 days old)...I don't know what IIS is?

Seeing that your last statment says:
Whoops I missed your comment "No I'm not talking about FTP."

I assume IIS has nothing to do with the question...if I am mistaken please inform.

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ErikPhilips

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Eran_R

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