Can antivirus affect my windows service performance

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Dear sir, 
iam building a windows service to get the log from attendance machine , but it loses 
some transaction !!!!! i do not know how , could the antivirus affect my windows service performance ....can it block my service even for milliseconds...

What I have tried:

i cannot find the lost records from log file

Posted 19-Oct-20 18:35pm

Member 13639193

Updated 31-Oct-20 16:32pm

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Member 13639193 20-Oct-20 0:37am

iam working with VS2015 on windows 10 64 bit

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lmoelleb · Answer 1 · 2020-10-26T02:00:00

Yes, antivirus can affect your performance as it hooks into the file IO operations and is able to delay them. But this is just one of many things that can cause delays (the CPU might be doing something else, the disk might be busy, the network stack sending/receiving other packages, ...). Routers and switches on the network can also delay your communication if you are communicating over the network.

So delays like this is an inherit property of a non-realtime operating system, and for this reason there are already mechanisms in the operating system to deal with this for you (queues). It should only be a problem if your service can't process data as fast as it is being generated.... unless you did something strange in your algorithm like making it required to run every millisecond (as you most certainly can't guarantee that).

If you are reading log files as they are being generated, this might not work reliable depending on the logging framework. The logging framework writing the log file might not deal well with your service having the log file open for reading. You do not provide enough details to tell us if this is a likely problem (what is "the log")?

Sandeep Mewara · Answer 2 · 2020-10-19T19:38:00

Solution 2

Quote:
i do not know how , could the antivirus affect my windows service performance ....can it block my service even for milliseconds

No, antivirus would not block for some and leave some. If it blocks, it will block it.

You need to look at your code and see where is the gap. Use logs to trace them out if debugging is not an option to figure it out or it is too random.

Posted 19-Oct-20 19:38pm

Sandeep Mewara

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Member 13639193 20-Oct-20 2:52am

https://www.codeproject.com/Questions/5282863/Having-a-problem-with-ZK-SDK-download-cannot-get-t
please check my main question here

Patrice T · Answer 3 · 2020-10-26T02:42:00

Solution 4

Quote:
Can antivirus affect my windows service performance

Yes, and other thing too, but it shouldn't matter.
The communication with some device should not depend on service being available at any rate.
A safe communication with a device should use a communication protocol that ensure that you don't loose data even with unreliable communication.

You need to give detail on how you communicate with device.

Posted 26-Oct-20 2:42am

Patrice T

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Member 13639193 27-Oct-20 9:08am

my code is here

Having a problem with ZK SDK download -cannot get the whole log file[^]

Patrice T 27-Oct-20 9:31am

Use Improve question to update your question.
So that everyone can pay attention to this information.

Can antivirus affect my windows service performance

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