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net: reduce default compression level to 6

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On larger packets, this worsens compression ratio by 1-2%, but reduces CPU load due to compression by 15-20%. Higher levels than 6 are far more expensive for diminishing returns.
Level 5 produces a further 25-30% CPU reduction, but increases bandwidth usage by 20-25%, so 6 is the sweet spot.
This commit is contained in:
Dylan K. Taylor 2020-10-08 16:51:10 +01:00
parent d5398b2781
commit 90b749c260
2 changed files with 4 additions and 4 deletions
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6
src/pocketmine/Server.php
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@ -1400,10 +1400,10 @@ class Server{
Network::$BATCH_THRESHOLD = -1;
}
$this->networkCompressionLevel = (int) $this->getProperty("network.compression-level", 7);
$this->networkCompressionLevel = (int) $this->getProperty("network.compression-level", 6);
if($this->networkCompressionLevel < 1 or $this->networkCompressionLevel > 9){
$this->logger->warning("Invalid network compression level $this->networkCompressionLevel set, setting to default 7");
$this->networkCompressionLevel = 7;
$this->logger->warning("Invalid network compression level $this->networkCompressionLevel set, setting to default 6");
$this->networkCompressionLevel = 6;
}
$this->networkCompressionAsync = (bool) $this->getProperty("network.async-compression", true);

2
src/pocketmine/resources/pocketmine.yml
View File

@ -84,7 +84,7 @@ network:
#Set to 0 to compress everything, -1 to disable.
batch-threshold: 256
#Compression level used when sending batched packets. Higher = more CPU, less bandwidth usage
compression-level: 7
compression-level: 6
#Use AsyncTasks for compression. Adds half/one tick delay, less CPU load on main thread
async-compression: false
#Experimental, only for Windows. Tries to use UPnP to automatically port forward