Lines Matching +full:i +full:- +full:cache +full:- +full:size
6 doesn't cache reads because reads are supposed to be cached in page cache
14 1. type of the cache device - "p" or "s"
15 - p - persistent memory
16 - s - SSD
18 3. the cache device
19 4. block size (4096 is recommended; the maximum block size is the page
20 size)
25 offset from the start of cache device in 512-byte sectors
45 applicable only to persistent memory - use the FUA flag
49 applicable only to persistent memory - don't use the FUA
53 - some underlying devices perform better with fua, some
57 arguments or by a message), the cache will not promote
64 dm-writecache target and replace it with dm-linear or
68 a block is stored in the cache for too long, it will be
71 only metadata is promoted to the cache. This option
74 pause writeback if there was some write I/O redirected to
79 1. error indicator - 0 if there was no error, otherwise error number
84 6. the number of read blocks that hit the cache
88 10. the number of write blocks that bypass the cache
89 11. the number of write blocks that are allocated in the cache
96 Flush the cache device. The message returns successfully
97 if the cache device was flushed without an error
99 Flush the cache device on next suspend. Use this message
100 when you are going to remove the cache device. The proper
101 sequence for removing the cache device is:
110 6. the cache device is now inactive and it can be deleted