CC'ing linux-scsi and linux-block. Also, please CC me in replies. On Thu, Sep 1, 2016 at 4:43 PM, Alex Austin <aaustin@xxxxxxxxxxxxxxxxxxx> wrote: > Hello, > What is the most performant way to directly interface with an attached hard > drive? I've so far used read()/write() on /dev/sd_ but I find error handling > exceedingly difficult, as I don't always even get errors reported, even if the > open() call includes O_DIRECT. I've also used ioctl(SG_IO), but find that it's > extremely slow due to the lack of queuing support in the API. Is there a > mid-level API that will get me decent error handling while allowing command > queuing, or do I just need to make multiple threads all doing separate SG_IO > ioctls? > > Thank you, > - Alex Austin > > -- > Intelligence is knowing that a tomato is a fruit; wisdom is knowing that it > doesn't go in a fruit salad; charisma is selling a tomato-based fruit salad. -- Intelligence is knowing that a tomoato is a fruit; wisdom is knowing that it doesn't go in a fruit salad; charisma is selling a tomato-based fruit salad. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
