Messages in this thread | | | From | Alex Austin <> | Date | Thu, 1 Sep 2016 16:48:28 -0500 | Subject | Re: Block-level access |
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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@oceantechonline.com> 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.
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