Disk i/o dispatcher under server virtual environment and dispatching method thereof
A virtual environment and scheduling method technology, applied in the input/output process of data processing, instruments, software simulation/interpretation/simulation, etc., can solve the problem of not being able to provide virtual system I/O scheduling solutions, etc.
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[0017] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0018] FIG. 1 is a schematic diagram of a disk I / O scheduler for a server virtualization environment according to an embodiment of the present invention.
[0019] Referring to Fig. 1, the disk I / O scheduler 110 includes: a plurality of queues 110-1, 110-2 and 110-3 for I / O requests; an I / O request increasing unit 120, after receiving the After the I / O request, the I / O request is added to a corresponding one of the queues 110-1, 110-2 and 110-3; and 110-3 to extract the I / O request, so as to add the extracted I / O request to the device queue 200. Here, the I / O request adding unit 120 includes a queue hash (hash) for detecting the currently registered I / O queue based on the identifier of the virtual system, and the I / O request extracting unit 130 extracts the I / O queue from the corresponding queue. 0 requests to process I / O requests from queues 1...
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