El 23/01/15 a les 10.14, Bob Liu ha escrit: > Extend xen/block to support multi-page ring. > * xen-blkback notify blkfront with feature-multi-ring-pages > * xen-blkfront write to xenstore about how many pages are used as the ring > > If using 4 pages as the ring, inflight requests inscreased from 32 to 128 and > IOPS improved nearly 400% on our system. > > Signed-off-by: Bob Liu <bob....@oracle.com> > --- > drivers/block/xen-blkback/xenbus.c | 86 +++++++++++++++++++++++++-------- > drivers/block/xen-blkfront.c | 94 > ++++++++++++++++++++++++++----------
This requires a patch to xen/include/public/io/blkif.h in the Xen repository describing how this protocol extension is going to work before reviewing the Linux implementation. Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
