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Mike Hillyer
29 lines
1.3 KiB
Markdown
29 lines
1.3 KiB
Markdown
# Linux Tuning for Performance
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KumoMTA performance can be optimized by fine tuning system parameters. The settings below are examples only but have helped optimize test and development servers. This example represents a starting off point, you should research these and tune as needed for your own system.
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KumoMTA makes heavy use of files, RAM, CPU and network resources. Setting these can be helpful as a default Linux install assumes the need to share resources with many applications, but we need to allow KumoMTA to use as much of the resource pool as possible.
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## Tuning sysctl.conf
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The following tuning parameters should be reviewed to ensure they are properly tuned for your workload.
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These parameters should be added or updated in */etc/sysctl.conf*:
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* vm.max_map_count
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* net.core.rmem_default
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* net.core.wmem_default
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* net.core.rmem_max
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* net.core.wmem_max
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* fs.file-max
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* net.ipv4.ip_local_port_range
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* net.ipv4.tcp_tw_reuse
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* kernel.shmmax
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* net.core.somaxconn
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* vm.nr_hugepages
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* kernel.shmmni
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This does not necessarily represent the full range of kernel tuning parameters you may need to adjust.
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KumoMTA Sponsors should consult with the KumoMTA support team for assistance with performance tuning. More information on sponsoring KumoMTA can be found [here](https://kumomta.com/support).
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