WLANOptimizer

Single-header C library that fixes WiFi performance issues for online gaming and other low-latency real-time network traffic.

This fixes a common issue on Windows laptops where the adapter scans for networks while a connection is active, causing 100+ millisecond delays. This makes a huge difference in performance for real-time multiplayer!

On my laptop it reduces the latency from 130 ms delay spikes to 10 ms or less - 10x improvement.

Notably this also improves my BitTorrent download speed by 4x, as BitTorrent protocol uses a congestion control strategy based on latency (LEDBAT). These latency spikes cause download speed to plummet in easy, repeatable tests.

Note: This settings change DOES NOT require Administrator access.

Easy setup:

    Add the include header somewhere:

        #include "WLANOptimizer.h"

    Call the start function:

        StartWLANOptimizerThread();

And that's it.

Demo

To try it out quickly, run the tests/stand_alone.exe application.

To set up a more thorough demo between two computers on your LAN, run the tests/tests_peer2peer_gui.exe on two computers on your WiFi LAN.

The results on my WLAN:

Credits

Software by Christopher A. Taylor [email protected]

Please reach out if you need support or would like to collaborate on a project.

Compilation errors with MinGW

$ x86_64-w64-mingw32-g++ --static wifibetter.cpp WLANOptimizer.h WLANOptimizer.cpp -o wifilagkill.exe -std=c++1y
WLANOptimizer.cpp:37:13: error: ‘mutex’ in namespace ‘std’ does not name a type
 static std::mutex APILock;
             ^~~~~
WLANOptimizer.cpp: In function ‘int OptimizeWLAN(int)’:
WLANOptimizer.cpp:133:26: error: ‘mutex’ is not a member of ‘std’
     std::lock_guard<std::mutex> locker(APILock);
                          ^~~~~
WLANOptimizer.cpp:133:26: error: ‘mutex’ is not a member of ‘std’
WLANOptimizer.cpp:133:31: error: template argument 1 is invalid
     std::lock_guard<std::mutex> locker(APILock);
                               ^
WLANOptimizer.cpp:133:40: error: ‘APILock’ was not declared in this scope
     std::lock_guard<std::mutex> locker(APILock);
                                        ^~~~~~~
WLANOptimizer.cpp:133:40: note: suggested alternative: ‘HeapLock’
     std::lock_guard<std::mutex> locker(APILock);
                                        ^~~~~~~
                                        HeapLock
WLANOptimizer.cpp: At global scope:
WLANOptimizer.cpp:231:18: error: ‘mutex’ in namespace ‘std’ does not name a type
     mutable std::mutex StartStopLock;
                  ^~~~~
WLANOptimizer.cpp:234:18: error: ‘mutex’ in namespace ‘std’ does not name a type
     mutable std::mutex WakeLock;
                  ^~~~~
WLANOptimizer.cpp:237:10: error: ‘condition_variable’ in namespace ‘std’ does not name a type
     std::condition_variable WakeCondition;
          ^~~~~~~~~~~~~~~~~~
WLANOptimizer.cpp:240:10: error: ‘shared_ptr’ in namespace ‘std’ does not name a template type
     std::shared_ptr<std::thread> Thread;
          ^~~~~~~~~~
WLANOptimizer.cpp: In member function ‘void WLANOptimizerThread::Start()’:
WLANOptimizer.cpp:252:26: error: ‘mutex’ is not a member of ‘std’
     std::lock_guard<std::mutex> startStopLocker(StartStopLock);
                          ^~~~~
WLANOptimizer.cpp:252:26: error: ‘mutex’ is not a member of ‘std’
WLANOptimizer.cpp:252:31: error: template argument 1 is invalid
     std::lock_guard<std::mutex> startStopLocker(StartStopLock);
                               ^
WLANOptimizer.cpp:252:49: error: ‘StartStopLock’ was not declared in this scope
     std::lock_guard<std::mutex> startStopLocker(StartStopLock);
                                                 ^~~~~~~~~~~~~
WLANOptimizer.cpp:252:49: note: suggested alternative: ‘startStopLocker’
     std::lock_guard<std::mutex> startStopLocker(StartStopLock);
                                                 ^~~~~~~~~~~~~
                                                 startStopLocker
WLANOptimizer.cpp:254:10: error: ‘Thread’ was not declared in this scope
     if (!Thread)
          ^~~~~~
WLANOptimizer.cpp:254:10: note: suggested alternative: ‘_hread’
     if (!Thread)
          ^~~~~~
          _hread
WLANOptimizer.cpp:257:23: error: ‘make_shared’ is not a member of ‘std’
         Thread = std::make_shared<std::thread>(&WLANOptimizerThread::Loop, this);
                       ^~~~~~~~~~~
WLANOptimizer.cpp:257:23: note: suggested alternative: ‘make_signed’
         Thread = std::make_shared<std::thread>(&WLANOptimizerThread::Loop, this);
                       ^~~~~~~~~~~
                       make_signed
WLANOptimizer.cpp:257:40: error: ‘thread’ is not a member of ‘std’
         Thread = std::make_shared<std::thread>(&WLANOptimizerThread::Loop, this);
                                        ^~~~~~
WLANOptimizer.cpp:257:40: note: suggested alternative: ‘tera’
         Thread = std::make_shared<std::thread>(&WLANOptimizerThread::Loop, this);
                                        ^~~~~~
                                        tera
WLANOptimizer.cpp: In member function ‘void WLANOptimizerThread::Stop()’:
WLANOptimizer.cpp:263:26: error: ‘mutex’ is not a member of ‘std’
     std::lock_guard<std::mutex> startStopLocker(StartStopLock);
                          ^~~~~
WLANOptimizer.cpp:263:26: error: ‘mutex’ is not a member of ‘std’
WLANOptimizer.cpp:263:31: error: template argument 1 is invalid
     std::lock_guard<std::mutex> startStopLocker(StartStopLock);
                               ^
WLANOptimizer.cpp:263:49: error: ‘StartStopLock’ was not declared in this scope
     std::lock_guard<std::mutex> startStopLocker(StartStopLock);
                                                 ^~~~~~~~~~~~~
WLANOptimizer.cpp:263:49: note: suggested alternative: ‘startStopLocker’
     std::lock_guard<std::mutex> startStopLocker(StartStopLock);
                                                 ^~~~~~~~~~~~~
                                                 startStopLocker
WLANOptimizer.cpp:265:9: error: ‘Thread’ was not declared in this scope
     if (Thread)
         ^~~~~~
WLANOptimizer.cpp:265:9: note: suggested alternative: ‘_hread’
     if (Thread)
         ^~~~~~
         _hread
WLANOptimizer.cpp:271:35: error: ‘mutex’ is not a member of ‘std’
             std::unique_lock<std::mutex> wakeLocker(WakeLock);
                                   ^~~~~
WLANOptimizer.cpp:271:35: error: ‘mutex’ is not a member of ‘std’
WLANOptimizer.cpp:271:40: error: template argument 1 is invalid
             std::unique_lock<std::mutex> wakeLocker(WakeLock);
                                        ^
WLANOptimizer.cpp:271:53: error: ‘WakeLock’ was not declared in this scope
             std::unique_lock<std::mutex> wakeLocker(WakeLock);
                                                     ^~~~~~~~
WLANOptimizer.cpp:271:53: note: suggested alternative: ‘wakeLocker’
             std::unique_lock<std::mutex> wakeLocker(WakeLock);
                                                     ^~~~~~~~
                                                     wakeLocker
WLANOptimizer.cpp:272:13: error: ‘WakeCondition’ was not declared in this scope
             WakeCondition.notify_all();
             ^~~~~~~~~~~~~
WLANOptimizer.cpp:284:5: error: ‘Thread’ was not declared in this scope
     Thread = nullptr;
     ^~~~~~
WLANOptimizer.cpp:284:5: note: suggested alternative: ‘_hread’
     Thread = nullptr;
     ^~~~~~
     _hread
WLANOptimizer.cpp: In member function ‘void WLANOptimizerThread::Loop()’:
WLANOptimizer.cpp:302:31: error: ‘mutex’ is not a member of ‘std’
         std::unique_lock<std::mutex> locker(WakeLock);
                               ^~~~~
WLANOptimizer.cpp:302:31: error: ‘mutex’ is not a member of ‘std’
WLANOptimizer.cpp:302:36: error: template argument 1 is invalid
         std::unique_lock<std::mutex> locker(WakeLock);
                                    ^
WLANOptimizer.cpp:302:45: error: ‘WakeLock’ was not declared in this scope
         std::unique_lock<std::mutex> locker(WakeLock);
                                             ^~~~~~~~
WLANOptimizer.cpp:302:45: note: suggested alternative: ‘HeapLock’
         std::unique_lock<std::mutex> locker(WakeLock);
                                             ^~~~~~~~
                                             HeapLock
WLANOptimizer.cpp:305:13: error: ‘WakeCondition’ was not declared in this scope
             WakeCondition.wait_for(locker, kOptimizeInterval);
             ^~~~~~~~~~~~~

Contents of wifibetter.cpp:

#include "WLANOptimizer.h"
#include <cstdlib>

using namespace std;

int main() 
{
    StartWLANOptimizerThread();
    system("pause");
    return 0;
}

catid / wlanoptimizer Goto Github PK

wlanoptimizer's Introduction

WLANOptimizer

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wlanoptimizer's Issues

update?

Provide stand-alone binary

Could you please introduce the principle of WLAN transmission optimization in this project?

Compilation errors with MinGW

How do I do easy setup?

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