Difference between revisions of "Tuning the Server"
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(Created page with "==== Increase ulimit ==== ulimit -n 8192 ==== Increase the ports available ==== sysctl -w net.ipv4.ip_local_port_range="9000 65500" And add this line to <code>/etc/sysctl.c...") |
(Add postgres optimizations from RYD) |
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| (6 intermediate revisions by one other user not shown) | |||
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==== Increase ulimit ==== | ==== Increase ulimit ==== | ||
ulimit -n | ulimit -n 65535 | ||
==== Sysctl ==== | |||
==== Increase the ports available ==== | ==== Increase the ports available ==== | ||
sysctl -w net.ipv4.ip_local_port_range="9000 65500" | sysctl -w net.ipv4.ip_local_port_range="9000 65500" | ||
And add this line to <code>/etc/sysctl.conf</code> | And add this line to <code>/etc/sysctl.conf</code> | ||
net.ipv4.ip_local_port_range= | net.ipv4.ip_local_port_range=9000 65500 | ||
==== Increase max connections ==== | ==== Increase max connections ==== | ||
| Line 11: | Line 13: | ||
And add this line to <code>/etc/sysctl.conf</code> | And add this line to <code>/etc/sysctl.conf</code> | ||
net.core.somaxconn=324000 | net.core.somaxconn=324000 | ||
===== More limits ===== | |||
net.ipv4.tcp_max_syn_backlog=3240000 | |||
net.core.netdev_max_backlog=70000 | |||
net.ipv4.tcp_max_orphans=70000 | |||
Lower timeout to allow more connections per second<ref>https://stackoverflow.com/a/3923785/1985387</ref> | |||
net.ipv4.tcp_fin_timeout=20 | |||
==== Security limits ==== | |||
Add these lines to <code>/etc/security/limits.conf</code> | |||
* soft nofile 65535 | |||
* hard nofile 65535 | |||
== Postgres == | |||
Autovacuum - 10mins <ref>https://discord.com/channels/603643120093233162/603643299961503761/958431436023672842</ref> | |||
Hugepages for shared_memory buffers | |||
syncronous_commits off <ref>https://discord.com/channels/603643120093233162/607338052221665320/961280147611353088</ref> | |||
Latest revision as of 22:44, 6 April 2022
Increase ulimit
ulimit -n 65535
Sysctl
Increase the ports available
sysctl -w net.ipv4.ip_local_port_range="9000 65500"
And add this line to /etc/sysctl.conf
net.ipv4.ip_local_port_range=9000 65500
Increase max connections
sysctl -w net.core.somaxconn=324000
And add this line to /etc/sysctl.conf
net.core.somaxconn=324000
More limits
net.ipv4.tcp_max_syn_backlog=3240000
net.core.netdev_max_backlog=70000
net.ipv4.tcp_max_orphans=70000
Lower timeout to allow more connections per second[1]
net.ipv4.tcp_fin_timeout=20
Security limits
Add these lines to /etc/security/limits.conf
* soft nofile 65535 * hard nofile 65535
Postgres
Autovacuum - 10mins [2]
Hugepages for shared_memory buffers
syncronous_commits off [3]