[abdullah]

I thing ndisapi.dll is 64-bit, I’m using the “../ndisapi/bin/dll/x64/Debug/ndisapi.dll” compiled in VS 2022.

Cygwin64 is installed in my Win 10 Pro 64 bit setup.

I tried the 64 bit compilers in cygwin: “/usr/bin/x86_64-pc-cygwin-c++.exe” and “/usr/bin/x86_64-pc-cygwin-g++.exe”

When I compile the modified PerfTest ( with C Api ) in VS 2022, everything is fine, I don’t get any error.

[abdullah]

OS: Win 10 Pro 64-bit (10.0, Build 19045)
Processor: Intel(R) Core(TM) i5-6300U CPU  2.40GHz (4 CPUs)
Memory: 20480MB RAM

Wi-Fi Adapter: Intel(R) Dual Band Wireless-AC 8260
Protocol: Wi-Fi 4 (802.11n)
Link Speed(Receive/Transmit): 65/65 (Mbps)

[abdullah]

I conducted the test again using “dnstrace” example without modifying the source code. When  the WinpkFilter is loaded but not any interface is selected; my internet provider’s speed test results in

Download: ~ 14.5 Mbit/sec

Upload: ~2.5 Mbit /sec

After I selected Wi-Fi interface in “dnstrace”; bandwidth became:

Download: ~ 3 Mbit/sec

Upload: ~2.3 Mbit /sec

Download speed is about one fifth of the speed without running dnstrace. Do you have any idea about this result ? How can I deploy winpacketfilter without any performance degredation on Wi-Fi adapter ?

[abdullah]

Thanks for the quick reply, I will follow to-day implementation details as you mention for my 1. question.

What about my 2.question having no concern with multiple-threads?

Do you have any different recommendation for the 2.question where a single  thread involved in the PerfTest trial regarding Wi-Fi adapter? Is the outdated PerfTest responsible alone for the reduced download speed ( 12 Mbit/sec —> 0.1 Mbit/sec ) on Wi-Fi adapter?

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