minio/docs/tuning/tuned.conf

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[main]
summary=Maximum server performance for MinIO
[vm]
transparent_hugepage=madvise
[sysfs]
/sys/kernel/mm/transparent_hugepage/defrag=defer+madvise
/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none=0
[cpu]
force_latency=1
governor=performance
energy_perf_bias=performance
min_perf_pct=100
[sysctl]
fs.xfs.xfssyncd_centisecs=72000
net.core.busy_read=50
net.core.busy_poll=50
kernel.numa_balancing=1
# Do not use swap at all
vm.swappiness=0
vm.vfs_cache_pressure=50
# Start writeback at 3% memory
vm.dirty_background_ratio=3
# Force writeback at 10% memory
vm.dirty_ratio=10
# Quite a few memory map
# areas may be consumed
vm.max_map_count=524288
# Default is 500000 = 0.5ms
kernel.sched_migration_cost_ns=5000000
# stalled hdd io threads
kernel.hung_task_timeout_secs=85
# network tuning for bigger throughput
net.core.netdev_max_backlog=250000
net.core.somaxconn=16384
net.ipv4.tcp_syncookies=0
net.ipv4.tcp_max_syn_backlog=16384
net.core.wmem_max=4194304
net.core.rmem_max=4194304
net.core.rmem_default=4194304
net.core.wmem_default=4194304
net.ipv4.tcp_rmem="4096 87380 4194304"
net.ipv4.tcp_wmem="4096 65536 4194304"
# Reduce CPU utilization
net.ipv4.tcp_timestamps=0
# Increase throughput
net.ipv4.tcp_sack=1
# 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.
net.ipv4.tcp_adv_win_scale=1
# disable RFC2861 behavior
net.ipv4.tcp_slow_start_after_idle = 0
# Fix faulty network setups
net.ipv4.tcp_mtu_probing=1
net.ipv4.tcp_base_mss=1280
# Disable ipv6
net.ipv6.conf.all.disable_ipv6=1
net.ipv6.conf.default.disable_ipv6=1
net.ipv6.conf.lo.disable_ipv6=1
[bootloader]
# Avoid firing timers for all CPUs at the same time. This is irrelevant for
# full nohz systems
cmdline=skew_tick=1