![]() The “Multimedia Class Scheduler” service (MMCSS) ensures prioritized access to CPU resources, without denying CPU resources to lower-priority background applications. Multimedia streaming and some games that uses “Multimedia Class Scheduler” service (MMCSS) can only utilize up to 80% of the CPU. Under SystemProfile, create a DWORD value and name it to “NetworkThrottlingIndex” then set its Hexadecimal value to ffffffff for gaming and max throughput: ffffffff completely disables throttling. To implement this tweak, run regedit and modify the registry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile. It is beneficial to turn off such throttling for achieving maximum throughput. Windows implements a network throttling mechanism, the idea behind such throttling is that processing of network packets can be a resource-intensive task. I have tried it and my latency improved from 110 to 90ms (SEA Server) when playing Dota 2. Note: Some reports say that the tweaks did reduce latency when playing Dota 2 and League of Legends but it doesn’t work for some. TCPNoDelay and set it also to 1 to disable “nagling” HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces key, create the following DWORD value: TcpAckFrequency and set it to 1 to disable “nagling” for gaming. To implement this tweak, modify the following registry keys. Nagle’s algorithm is enabled in Windows by default. Disabling “nagling” can help reduce latency/ping in some games. This is designed to improve throughput efficiency of data transmission. Nagle’s algorithm combines several small packets into a single, larger packet for more efficient transmissions. ![]() How to Tweak Windows 10 for Gaming Nagle’s Algorithm It's crazy how much microsoft gimps your PC from it's full gaming potential and the amount of stuff they hide from you. You don't have to, nothing should go wrong but it's always better to be safe than sorry. As always make a system restore point before making and registry settings, make a backup of your registry too. ![]()
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