2024年4月17日发(作者：)

# buffer. A value of 1 means the socket buffer will be divided evenly between.

# TCP windows size and application.

_adv_win_scale = 1

# maximum number of incoming connections

onn = 65535

# maximum number of packets queued

_max_backlog = 10000

# queue length of completely established sockets waiting for accept

_max_syn_backlog = 4096

# time to wait (seconds) for FIN packet

_fin_timeout = 15

# disable icmp send redirects

_redirects = 0

# disable icmp accept redirect

_redirects = 0

# drop packets with LSR or SSR

_source_route = 0

# MTU discovery, only enable when ICMP blackhole detected

_mtu_probing = 1

EOF

echo "Enabling system level tuning params"

sysctl --quiet --load && rm -f

# `Transparent Hugepage Support`*: This is a Linux kernel feature intended to improve

# performance by making more efficient use of processor’s memory-mapping hardware.

# But this may cause /linux/performance-issues-with-transparent-huge-pages-thp

# for non-optimized applications. As most Linux distributions set it to `enabled=always` by default,

# we recommend changing this to `enabled=madvise`. This will allow applications optimized

# for transparent hugepages to obtain the performance benefits, while preventing the

# associated problems otherwise. Also, set `transparent_hugepage=madvise` on your kernel

# command line (e.g. in /etc/default/grub) to persistently set this value.

echo "Enabling THP madvise"

echo madvise | sudo tee /sys/kernel/mm/transparent_hugepage/enabled

参考资料