Hi, Attached is modified patch with the comments incorporated. Thanks, Vijay > -----Original Message----- > From: Kiyoshi Ueda [mailto:k-ueda@xxxxxxxxxxxxx] > Sent: Thursday, December 11, 2008 7:13 AM > To: Balasubramanian, Vijayakumar (STSD); Alasdair G Kergon > Cc: device-mapper development > Subject: Re: [patch] leastpending_io load balancing policy > > Hi Alasdair, Vijayakumar, > > Alasdair G Kergon wrote: > > Also look at request based multipath patch > > rqdm-dlb-02-queue-length-dlb.patch > > which addresses some but not all of those points. > > FYI. > The rqdm-dlb-* patches don't depend on request-based > dm-multipath, so those can work on bio-based dm-multipath, > too, with some cosmetic changes. > > Alasdair, > If you want to apply dynamic load balancer patches before > request-based dm-multipath patches, I can rebase my load > balancer patches. > > The reason why I've been posting those patches on top of > request-based patches is that load balancer doesn't work well > in bio-based dm-multipath. > Bio-based dm-multipath is on top of the I/O scheduler, so I/O > merging and I/O sorting may occur after path switching. > > Thanks, > Kiyoshi Ueda > >
Attachment:
dm-mpath-add-least-pending-path-selector.patch
Description: dm-mpath-add-least-pending-path-selector.patch
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