linux/Documentation/block/blk-mq.rst at master - GitHub
The Multi-Queue Block IO Queueing Mechanism is an API to enable fast storage devices to achieve a huge number of input/output operations per second (IOPS) through queueing and submitting IO requests to block devices simultaneously, benefiting from the parallelism offered by modern storage devices.
Multi-Queue Block IO Queueing Mechanism (blk-mq)
blk-mq has two group of queues: software staging queues and hardware dispatch queues. When the request arrives at the block layer, it will try the shortest path possible: send it directly to the hardware queue.
diagram - What is the symbol for a queue? - Stack Overflow
For a queue, I would use something like this: Shows there's both an entry and an exit, and that it is FIFO. I need to find a Visio library that has a shape just like this example. I don't have a source to cite, unfortunately, but I recall seeing it represented as an isosceles trapezoid.
Multi-Queu on block layer in Linux Kernel - GitHub Pages
Sep 14, 2016 · Linux kernel git shows you conversion into blk-mq. The blk_mq API Implements a two-levels block layer design which use two separate sets of request queues. software staging queues, allocated per-CPU. hardware dispatch queues, whose number typically match the number of actual haraware queues supported by th blcok device.
Block Device Drivers — The Linux Kernel documentation - GitHub …
Software staging queues¶ The staging queues hold requests from the clients before sending them to the block device driver. To prevent the waiting for a per-queue lock, a staging queue is allocated for each CPU or node. A software queue is associated to only one hardware queue.
Block layer introduction part 2: the request layer - LWN.net
Nov 9, 2017 · The multi-queue request layer maintains two groups of hardware-related queues: the software staging queues and the hardware dispatch queues. Software staging queues (struct blk_mq_ctx) are allocated based on the CPU hardware, one per CPU or one per NUMA node.
java - How to draw JMS queue? - Stack Overflow
Aug 1, 2012 · There is a great book called "Enterprise Integration Patterns" which has a nice visual language and symbol for messaging systems, here is a link to the diagram they use for a queue http://www.eaipatterns.com/MessageChannel.html
A Complete List of Value Stream Mapping Symbols
VSM utilizes industry-recognized value stream symbols to map out all the processes from raw material to finished product. It is a graphical representation of the manufacturing process by including all stakeholders, processes, information, and materials in a flowchart.
We develop a model for the resulting staging queue, and give simulation results for several configurations. In most finite queueing applications, a customer may join the queue as long as the number of customers in the queue is less than the number of positions in the queue.
diagram - Symbol for a FIFO / Queue in dia? - Stack Overflow
Nov 29, 2012 · Dia's Sybase sheet has a "Stable storage device" which is a "queue" - but possibly not the symbol you're looking for. http://diashapes.appspot.com/ allows you to search for shapes - in case you're getting a strange error message, the app may be over the Google App Engine quota and you can try again later.