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- What: /sys/module/xen_blkback/parameters/max_buffer_pages
- Date: March 2013
- KernelVersion: 3.11
- Contact: Roger Pau Monné <roger.pau@citrix.com>
- Description:
- Maximum number of free pages to keep in each block
- backend buffer.
- What: /sys/module/xen_blkback/parameters/max_persistent_grants
- Date: March 2013
- KernelVersion: 3.11
- Contact: Roger Pau Monné <roger.pau@citrix.com>
- Description:
- Maximum number of grants to map persistently in
- blkback. If the frontend tries to use more than
- max_persistent_grants, the LRU kicks in and starts
- removing 5% of max_persistent_grants every 100ms.
- What: /sys/module/xen_blkback/parameters/persistent_grant_unused_seconds
- Date: August 2018
- KernelVersion: 4.19
- Contact: Roger Pau Monné <roger.pau@citrix.com>
- Description:
- How long a persistent grant is allowed to remain
- allocated without being in use. The time is in
- seconds, 0 means indefinitely long.
- The default is 60 seconds.
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