mirror of
https://github.com/minio/minio.git
synced 2024-12-25 06:35:56 -05:00
remove unnecessary kernel-tuning docs (#16354)
This commit is contained in:
parent
a15a2556c3
commit
b197623ed2
@ -1,98 +0,0 @@
|
||||
# Kernel Tuning for MinIO Production Deployment on Linux Servers [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![Docker Pulls](https://img.shields.io/docker/pulls/minio/minio.svg?maxAge=604800)](https://hub.docker.com/r/minio/minio/)
|
||||
|
||||
List of kernel tuning recommendations for MinIO server deployments, a copy of this [script](https://github.com/minio/minio/blob/master/docs/deployment/kernel-tuning/sysctl.sh) is available here that can be applied on the servers.
|
||||
|
||||
> NOTE: These are common recommendations on any Linux servers, users must be careful on any premature optimization.
|
||||
> These settings are not mandatory, these settings do not fix any hardware issues and should not be considered as an
|
||||
> alternative to boost performance to mask underlying hardware problems. Under all circumstances it is recommended
|
||||
> to perform this tuning only after performing benchmarks for the hardware with expected baseline results.
|
||||
|
||||
```
|
||||
#!/bin/bash
|
||||
|
||||
cat > sysctl.conf <<EOF
|
||||
# maximum number of open files/file descriptors
|
||||
fs.file-max = 4194303
|
||||
|
||||
# use as little swap space as possible
|
||||
vm.swappiness = 1
|
||||
|
||||
# prioritize application RAM against disk/swap cache
|
||||
vm.vfs_cache_pressure = 50
|
||||
|
||||
# minimum free memory
|
||||
vm.min_free_kbytes = 1000000
|
||||
|
||||
# follow mellanox best practices https://community.mellanox.com/s/article/linux-sysctl-tuning
|
||||
# the following changes are recommended for improving IPv4 traffic performance by Mellanox
|
||||
|
||||
# disable the TCP timestamps option for better CPU utilization
|
||||
net.ipv4.tcp_timestamps = 0
|
||||
|
||||
# enable the TCP selective acks option for better throughput
|
||||
net.ipv4.tcp_sack = 1
|
||||
|
||||
# increase the maximum length of processor input queues
|
||||
net.core.netdev_max_backlog = 250000
|
||||
|
||||
# increase the TCP maximum and default buffer sizes using setsockopt()
|
||||
net.core.rmem_max = 4194304
|
||||
net.core.wmem_max = 4194304
|
||||
net.core.rmem_default = 4194304
|
||||
net.core.wmem_default = 4194304
|
||||
net.core.optmem_max = 4194304
|
||||
|
||||
# increase memory thresholds to prevent packet dropping:
|
||||
net.ipv4.tcp_rmem = "4096 87380 4194304"
|
||||
net.ipv4.tcp_wmem = "4096 65536 4194304"
|
||||
|
||||
# enable low latency mode for TCP:
|
||||
net.ipv4.tcp_low_latency = 1
|
||||
|
||||
# the following variable is used to tell the kernel how much of the socket buffer
|
||||
# space should be used for TCP window size, and how much to save for an application
|
||||
# buffer. A value of 1 means the socket buffer will be divided evenly between.
|
||||
# TCP windows size and application.
|
||||
net.ipv4.tcp_adv_win_scale = 1
|
||||
|
||||
# maximum number of incoming connections
|
||||
net.core.somaxconn = 65535
|
||||
|
||||
# maximum number of packets queued
|
||||
net.core.netdev_max_backlog = 10000
|
||||
|
||||
# queue length of completely established sockets waiting for accept
|
||||
net.ipv4.tcp_max_syn_backlog = 4096
|
||||
|
||||
# time to wait (seconds) for FIN packet
|
||||
net.ipv4.tcp_fin_timeout = 15
|
||||
|
||||
# disable icmp send redirects
|
||||
net.ipv4.conf.all.send_redirects = 0
|
||||
|
||||
# disable icmp accept redirect
|
||||
net.ipv4.conf.all.accept_redirects = 0
|
||||
|
||||
# drop packets with LSR or SSR
|
||||
net.ipv4.conf.all.accept_source_route = 0
|
||||
|
||||
# MTU discovery, only enable when ICMP blackhole detected
|
||||
net.ipv4.tcp_mtu_probing = 1
|
||||
|
||||
EOF
|
||||
|
||||
echo "Enabling system level tuning params"
|
||||
sysctl --quiet --load sysctl.conf && rm -f sysctl.conf
|
||||
|
||||
# `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 https://blogs.oracle.com/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
|
||||
```
|
@ -1,87 +0,0 @@
|
||||
#!/bin/bash
|
||||
|
||||
cat > sysctl.conf <<EOF
|
||||
# maximum number of open files/file descriptors
|
||||
fs.file-max = 4194303
|
||||
|
||||
# use as little swap space as possible
|
||||
vm.swappiness = 1
|
||||
|
||||
# prioritize application RAM against disk/swap cache
|
||||
vm.vfs_cache_pressure = 50
|
||||
|
||||
# minimum free memory
|
||||
vm.min_free_kbytes = 1000000
|
||||
|
||||
# follow mellanox best practices https://community.mellanox.com/s/article/linux-sysctl-tuning
|
||||
# the following changes are recommended for improving IPv4 traffic performance by Mellanox
|
||||
|
||||
# disable the TCP timestamps option for better CPU utilization
|
||||
net.ipv4.tcp_timestamps = 0
|
||||
|
||||
# enable the TCP selective acks option for better throughput
|
||||
net.ipv4.tcp_sack = 1
|
||||
|
||||
# increase the maximum length of processor input queues
|
||||
net.core.netdev_max_backlog = 250000
|
||||
|
||||
# increase the TCP maximum and default buffer sizes using setsockopt()
|
||||
net.core.rmem_max = 4194304
|
||||
net.core.wmem_max = 4194304
|
||||
net.core.rmem_default = 4194304
|
||||
net.core.wmem_default = 4194304
|
||||
net.core.optmem_max = 4194304
|
||||
|
||||
# increase memory thresholds to prevent packet dropping:
|
||||
net.ipv4.tcp_rmem = 4096 87380 4194304
|
||||
net.ipv4.tcp_wmem = 4096 65536 4194304
|
||||
|
||||
# enable low latency mode for TCP:
|
||||
net.ipv4.tcp_low_latency = 1
|
||||
|
||||
# the following variable is used to tell the kernel how much of the socket buffer
|
||||
# space should be used for TCP window size, and how much to save for an application
|
||||
# buffer. A value of 1 means the socket buffer will be divided evenly between.
|
||||
# TCP windows size and application.
|
||||
net.ipv4.tcp_adv_win_scale = 1
|
||||
|
||||
# maximum number of incoming connections
|
||||
net.core.somaxconn = 65535
|
||||
|
||||
# maximum number of packets queued
|
||||
net.core.netdev_max_backlog = 10000
|
||||
|
||||
# queue length of completely established sockets waiting for accept
|
||||
net.ipv4.tcp_max_syn_backlog = 4096
|
||||
|
||||
# time to wait (seconds) for FIN packet
|
||||
net.ipv4.tcp_fin_timeout = 15
|
||||
|
||||
# disable icmp send redirects
|
||||
net.ipv4.conf.all.send_redirects = 0
|
||||
|
||||
# disable icmp accept redirect
|
||||
net.ipv4.conf.all.accept_redirects = 0
|
||||
|
||||
# drop packets with LSR or SSR
|
||||
net.ipv4.conf.all.accept_source_route = 0
|
||||
|
||||
# MTU discovery, only enable when ICMP blackhole detected
|
||||
net.ipv4.tcp_mtu_probing = 1
|
||||
|
||||
EOF
|
||||
|
||||
echo "Enabling system level tuning params"
|
||||
sysctl --quiet --load sysctl.conf && rm -f sysctl.conf
|
||||
|
||||
# `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 https://blogs.oracle.com/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
|
Loading…
Reference in New Issue
Block a user