TINY

Tuned TINY模板，针对微型实例与虚拟机

Tuned TINY模板主要针对极低配置的虚拟机进行优化，

此模板针对的典型机型是1核/1GB的虚拟机节点。您可以根据自己的实际机型进行调整。

  1. # tuned configuration
  2. #==============================================================#
  3. # File      :   tuned.conf
  4. # Mtime     :   2020-06-29
  5. # Desc      :   Tune operatiing system to tiny mode
  6. # Path      :   /etc/tuned/tiny/tuned.conf
  7. # Author    :   Vonng(fengruohang@outlook.com)
  8. # Copyright (C) 2018-2021 Ruohang Feng
  9. #==============================================================#
  11. [main]
  12. summary=Optimize for PostgreSQL TINY System
  13. # include=virtual-guest
  15. [vm]
  16. # disable transparent hugepages
  17. transparent_hugepages=never
  19. [sysctl]
  20. #-------------------------------------------------------------#
  21. #                           KERNEL                            #
  22. #-------------------------------------------------------------#
  23. # disable numa balancing
  24. kernel.numa_balancing=0
  26. # If a workload mostly uses anonymous memory and it hits this limit, the entire
  27. # working set is buffered for I/O, and any more write buffering would require
  28. # swapping, so it's time to throttle writes until I/O can catch up.  Workloads
  29. # that mostly use file mappings may be able to use even higher values.
  30. #
  31. # The generator of dirty data starts writeback at this percentage (system default
  32. # is 20%)
  33. vm.dirty_ratio = 40
  35. # Filesystem I/O is usually much more efficient than swapping, so try to keep
  36. # swapping low.  It's usually safe to go even lower than this on systems with
  37. # server-grade storage.
  38. vm.swappiness = 30
  40. #-------------------------------------------------------------#
  41. #                          Network                            #
  42. #-------------------------------------------------------------#
  43. # tcp options
  44. net.ipv4.tcp_timestamps=1
  45. net.ipv4.tcp_tw_reuse=1
  46. net.ipv4.tcp_tw_recycle=0
  47. net.ipv4.tcp_syncookies=0
  48. net.ipv4.tcp_synack_retries=1
  49. net.ipv4.tcp_syn_retries=1
  51. # tcp probe fail interval: 75s -> 20s
  52. net.ipv4.tcp_keepalive_intvl=20
  53. # tcp break after 3 * 20s = 1m
  54. net.ipv4.tcp_keepalive_probes=3
  55. # probe peroid = 1 min
  56. net.ipv4.tcp_keepalive_time=60

最后修改 2022-05-27: init commit (1e3e284)