Lines Matching refs:queue
37 information about request queue operations up to user space.
113 queue. This is the average time from when the IO enters the block
114 IO layer (queue trace) until it is inserted (insert trace).
128 queue (insert trace).
133 amount of time between the queue trace and the merge trace.
135 \item Time spent on the request queue. The average time from when
136 the IO is inserted or merged onto the request queue, until it is
154 \item \emph{Q2Q} which measures the time between queue traces
162 = {Q2C}$ however, typically there are multiple queue traces that
164 currently average the queue-to-insert and queue-to-merge times,
262 \item[Request Queue Plug Information]
265 such times the IO request queue elements are not able to be processed
267 queue was in such a state.
281 \item Timed unplugs, due to a request queue exceeding some temporal
291 queue at the time of an unplug or unplug due to a timeout. The following
479 those periods of time when queue and complete traces are being
487 contains a set of queue activity and a set of completion activity. The
528 in either queue or completion traces across all devices.
549 low, it represents an extended period of time where no queue requests
626 \item queue traces
679 provide per-IO latency information, one for queue time (Q2D), one
820 [ -Q <output name> | --active-queue-depth=<output name> ]
959 \subsection{\label{sec:o-Q}\texttt{--active-queue-depth}/\texttt{-Q}}
1078 \texttt{Q2Q} & Queue-to-Queue times:\\
1079 \texttt{Q2G} & Queue-to-GetRequest times:\\
1082 \texttt{Q2M} & Queue-to-Merge times:\\
1086 \texttt{Q2C} & Queue-to-Complete times:\\
