44 lines
1.1 KiB
Bash
44 lines
1.1 KiB
Bash
# |source| this file
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#
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# Adjusts system settings for optimal validator performance
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#
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sysctl_write() {
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declare name=$1
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declare new_value=$2
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# Test the existence of the sysctl before trying to set it
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sysctl "$name" 2>/dev/null 1>/dev/null || return 0
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declare current_value
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current_value=$(sysctl -n "$name")
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[[ $current_value != "$new_value" ]] || return 0
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declare cmd="sysctl -w $name=$new_value"
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if [[ -n $SUDO_OK ]]; then
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cmd="sudo $cmd"
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fi
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echo "$ $cmd"
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$cmd || true
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# Some versions of sysctl exit with 0 on permission denied errors
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current_value=$(sysctl -n "$name")
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if [[ $current_value != "$new_value" ]]; then
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echo "==> Failed to set $name. Try running: \"SUDO_OK=1 source ${BASH_SOURCE[0]}\""
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fi
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}
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case $(uname) in
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Linux)
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# Reference: https://medium.com/@CameronSparr/increase-os-udp-buffers-to-improve-performance-51d167bb1360
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sysctl_write net.core.rmem_max 134217728
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sysctl_write net.core.rmem_default 134217728
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sysctl_write net.core.wmem_max 134217728
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sysctl_write net.core.wmem_default 134217728
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;;
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*)
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;;
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esac
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