On Fri, Sep 26, 2014 at 08:58:56AM -0400, Milosz Tanski wrote: > First, I have recently submitted a series of patches to kernel to add > a new preadv2 syscall that lets you do a "fast read" out of the page > cache the point being that you can skip the whole disk IO queue in > user space in the cases it's already cached (thus reducing the > latency). Obviously this doesn't do much for writes (yet, Christoph > Heldwig is working on that). Samba expressed an interest using these > new syscalls as well.
We could also implement it for writes, but if would be a bit more complicated. If there is a compelling use case it might be worth exploring. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
