Lines Matching refs:Block
31 blktrace is a block layer IO tracing mechanism which provides detailed
37 kernel event logging interfaces, and patches to areas within the block
96 \emph{Support for tracing block io actions.} To do this, run
102 and navigate through \emph{Device Drivers} and \emph{Block devices}
103 and then down to \emph{Support for tracing block io actions} and hit Y.
241 Block size=4096 (log=2)
245 First data block=0
247 1025 block groups
420 blktrace disguingishes between two types of block layer requests,
427 a super or journal block to disk. \emph{pc} requests are SCSI
428 commands. blktrace sends the command data block as a payload
524 \item[D -- issued] A request that previously resided on the block layer
551 \item[G -- get request] To send any type of request to a block device,
557 \item[P -- plug] When io is queued to a previously empty block device
650 'W' for write, or 'D' for block discard operation), and optionally either
680 The header is the data in this line up to the 223490 (starting block).
739 supplies block IO layer state transition data via the relay
