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You are most likely having a disk problem. The disk is failing and one fairly common failure method is to have higher latencies due to increased number of retries on certain problematic areas on the disk, these areas when hit will cause a chain reaction of other IOs waiting on them and if there were multiple IOs to the affected area you'll see such a problem ...


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We did this with a game server. We eventually changed it for a plugin on pfsense, but we didn't notice any performance degradation with a few thousand ip blocks in the windows firewall. Blocking based upon ip is one of the most rudimentary tasks a firewall can do. Besides the management overhead (you already have a script for that), I wouldn't see any reason ...


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Even if our scenarios are different, I would like to share: I have a small VPS (1 CPU, 256MB RAM) running a few services on Linux, and the firewall have thousands of rules denying whole blocks of adresses, spanning whole countries, and I haven't seen any slowdown. I think it's less demanding on the server to simply drop lots of packets than letting them go ...


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You may also be interested in UDF (Universal Disk Format). See UDF OS compatibility table on Wikipedia. The only downside to UDF 2.01 is that there is no native write support for Windows XP (at least without third party utilities). However, writing with Windows 7 and later are natively supported. I recently found myself researching this very topic, and I ...


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I have solved it. Or rather, I know how to make it faster, but do not know why it is slow. It seems that AES cipher interferes somehow with TCP on this particular server and results in the low performance. If I change the cipher to, say, 3des (which is slower as reported by "openssl speed"), I get 150mbps. After some trials, I now use this: cipher ...


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I would: take a snapshot of mem swap usage drop cache using : sync; echo 3 > /proc/sys/vm/drop_caches monitor how cache is being used next to this. But this may impact performance for a short period to refresh the cache if it is actually mostly hot.



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