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Add section for CPU Scaling

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I asked a few people to show what profile their cpu was set to. All 4 of them showed theirs to be in powersave (With hosts from both Hetzner & OVH) and upon switching profile saw a SIGNIFICANT increase in clock speed and decrease in mspt. No other guide mentions this fact and i believe it has a major impact with no downsides.
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BumbleTree
2021-08-02 15:12:41 +01:00
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@@ -457,6 +457,12 @@ If this option is greater that `0`, players above the set y level will be damage
Your garbage collector can be configured to reduce lag spikes caused by big garbage collector tasks. You can find startup flags optimized for minecraft servers [here](https://mcflags.emc.gs/) [`SOG`]. Keep in mind that this recommendation will not work on alternative jvm implementations.
# Linux cpu scaling
Hosts such as OVH and Hetzner are known to ship machines running in "PowerSave" mode. This can result in around 25% lower clock speeds and thus vastly lower single threaded performance, leading to less TPS than the cpu is capable of.
On Debian / Ubuntu running `Cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor` will show the cpus performance profile.
Then running `echo "performance" | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor` will set to performance.
# "Too good to be true" plugins
## Plugins removing ground items