blk-mq (Multi-Queue Block IO Queueing Mechanism) is a new framework for the Linux block layer that was introduced with Linux Kernel 3.13, and which has become feature-complete with Kernel 3.16.[1] Blk-mq allows for over 15 million IOPS with high-performance flash devices (e.g. PCIe SSDs) on 8-socket servers, though even single and dual socket servers also benefit considerably from blk-mq.[2] To use a device with blk-mq, the device must support the respective driver.

Использование новых планировщиков для блочных устройств в Linux, основанных на новом способе передачи запросов multiqueue block layer (blk-mq)