The block I/O layer, part 4 - The multi-queue interface
2022. 11. 19.
◈ 출처: http://ari-ava.blogspot.com/2014/07/opw-linux-block-io-layer-part-4-multi.html So, a couple of weeks ago I performed some first tests on the prototype driver using a simulated device created with the null_blk device driver. Such tests, and the following profiling, highlighted some locking issues due to contention on an internal lock kept by the frontend driver; more in detail, such a lock ..