sysfs-devices-system-xen_memory 2.9 KB

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  1. What: /sys/devices/system/xen_memory/xen_memory0/max_retry_count
  2. Date: May 2011
  3. KernelVersion: 2.6.39
  4. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  5. Description:
  6. The maximum number of times the balloon driver will
  7. attempt to increase the balloon before giving up. See
  8. also 'retry_count' below.
  9. A value of zero means retry forever and is the default one.
  10. What: /sys/devices/system/xen_memory/xen_memory0/max_schedule_delay
  11. Date: May 2011
  12. KernelVersion: 2.6.39
  13. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  14. Description:
  15. The limit that 'schedule_delay' (see below) will be
  16. increased to. The default value is 32 seconds.
  17. What: /sys/devices/system/xen_memory/xen_memory0/retry_count
  18. Date: May 2011
  19. KernelVersion: 2.6.39
  20. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  21. Description:
  22. The current number of times that the balloon driver
  23. has attempted to increase the size of the balloon.
  24. The default value is one. With max_retry_count being
  25. zero (unlimited), this means that the driver will attempt
  26. to retry with a 'schedule_delay' delay.
  27. What: /sys/devices/system/xen_memory/xen_memory0/schedule_delay
  28. Date: May 2011
  29. KernelVersion: 2.6.39
  30. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  31. Description:
  32. The time (in seconds) to wait between attempts to
  33. increase the balloon. Each time the balloon cannot be
  34. increased, 'schedule_delay' is increased (until
  35. 'max_schedule_delay' is reached at which point it
  36. will use the max value).
  37. What: /sys/devices/system/xen_memory/xen_memory0/target
  38. Date: April 2008
  39. KernelVersion: 2.6.26
  40. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  41. Description:
  42. The target number of pages to adjust this domain's
  43. memory reservation to.
  44. What: /sys/devices/system/xen_memory/xen_memory0/target_kb
  45. Date: April 2008
  46. KernelVersion: 2.6.26
  47. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  48. Description:
  49. As target above, except the value is in KiB.
  50. What: /sys/devices/system/xen_memory/xen_memory0/info/current_kb
  51. Date: April 2008
  52. KernelVersion: 2.6.26
  53. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  54. Description:
  55. Current size (in KiB) of this domain's memory
  56. reservation.
  57. What: /sys/devices/system/xen_memory/xen_memory0/info/high_kb
  58. Date: April 2008
  59. KernelVersion: 2.6.26
  60. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  61. Description:
  62. Amount (in KiB) of high memory in the balloon.
  63. What: /sys/devices/system/xen_memory/xen_memory0/info/low_kb
  64. Date: April 2008
  65. KernelVersion: 2.6.26
  66. Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  67. Description:
  68. Amount (in KiB) of low (or normal) memory in the
  69. balloon.
  70. What: /sys/devices/system/xen_memory/xen_memory0/scrub_pages
  71. Date: September 2018
  72. KernelVersion: 4.20
  73. Contact: xen-devel@lists.xenproject.org
  74. Description:
  75. Control scrubbing pages before returning them to Xen for others domains
  76. use. Can be set with xen_scrub_pages cmdline
  77. parameter. Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.