LWN.net Logo

An IOPS-based I/O scheduler

An IOPS-based I/O scheduler

Posted Jan 12, 2012 17:13 UTC (Thu) by kraftcheck (guest, #35072)
Parent article: An IOPS-based I/O scheduler

Is only counting IO ops the right thing to do for all solid state devices? Most solid state storage devices that I use (e.g. USB thumb drives, SD cards) seem to have some serious IO bandwidth bottlenecks. Are all IO ops of a fixed size for these devices, such that IO ops are proportional to bytes transferred? Or perhaps balancing IO between users is not an issue for "low performance" devices.


(Log in to post comments)

An IOPS-based I/O scheduler

Posted Jan 12, 2012 20:23 UTC (Thu) by cbf123 (guest, #74020) [Link]

I suspect that in most cases thumb drives and SD cards are not used by multiple processes at once, and so are less interesting.

The interesting case is large SSD drives that replace spinning media.

Copyright © 2013, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds