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linuxmalaysia/sysctl-conf.txt

Created June 7, 2020 02:33
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sysctl.conf for elasticsearch node
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sysctl-conf.txt
vm.max_map_count=262144
net.core.default_qdisc = fq
net.ipv4.tcp_congestion_control = bbr
net.ipv4.tcp_notsent_lowat = 16384
net.core.somaxconn = 4096
# Increase size of file handles and inode cache
fs.file-max = 20971520
# Do less swapping
vm.swappiness = 1
vm.dirty_ratio = 60
vm.dirty_background_ratio = 2
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Reading about Google BBR :-

https://cloud.google.com/blog/products/gcp/tcp-bbr-congestion-control-comes-to-gcp-your-internet-just-got-faster

https://blog.cloudflare.com/http-2-prioritization-with-nginx/

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