BLK_QUEUE_IO_MIN(9)                       Block Devices                       BLK_QUEUE_IO_MIN(9)



NAME
       blk_queue_io_min - set minimum request size for the queue

SYNOPSIS
       void blk_queue_io_min(struct request_queue * q, unsigned int min);

ARGUMENTS
       q
           the request queue for the device

       min
           smallest I/O size in bytes

DESCRIPTION
       Storage devices may report a granularity or preferred minimum I/O size which is the
       smallest request the device can perform without incurring a performance penalty. For disk
       drives this is often the physical block size. For RAID arrays it is often the stripe chunk
       size. A properly aligned multiple of minimum_io_size is the preferred request size for
       workloads where a high number of I/O operations is desired.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       BLK_QUEUE_IO_MIN(9)