Write back incompressible or idle page to backing device
configname: CONFIG_ZRAM_WRITEBACK
Linux Kernel Configuration
└─>Device Drivers
└─>Block devices
└─>Write back incompressible or idle page to backing device
In linux kernel since version 3.10 (release Date: 2013-06-30)
This lets zram entries (incompressible or idle pages) be written
back to a backing device, helping save memory.
For this feature, admin should set up backing device via
/sys/block/zramX/backing_dev.
With /sys/block/zramX/{idle,writeback}, application could ask
idle page's writeback to the backing device to save in memory.
See Documentation/admin-guide/blockdev/zram.rst for more information.
back to a backing device, helping save memory.
For this feature, admin should set up backing device via
/sys/block/zramX/backing_dev.
With /sys/block/zramX/{idle,writeback}, application could ask
idle page's writeback to the backing device to save in memory.
See Documentation/admin-guide/blockdev/zram.rst for more information.