Re: [Xen-devel] [xs-devel] blktap3 / tapdisk3 development

[Thanos Makatos <thanos.makatos@xxxxxxxxxx>]

> It seems upcoming XenServer 6.5 "Creedence" is going to use blktap3 /
> tapdisk3 after all, so if i understand this correctly blktap3 is being 
> developed
> "only for XenServer", right?

Correct, although it shouldn't be too much work for making it work on upstream 
Xen.

> Many interested persons have been asking on mailing lists and on IRC about
> the status of blktap3 development.
> Is it possible for someone from Citrix/XenServer to comment about this?
> 
> I know there's a blog post about blktap3/tapdisk3 performance
> (improvements) here:
> http://xenserver.org/blog/entry/tapdisk3
> 
> One of the interested developers is CC'd on this email. He has written
> RBD/Ceph support patch for blktap2, and he's interested in porting that to
> blktap3/tapdisk3..
> 
> Also is this the correct repo with latest blktap3/tapdisk3 bits in it?:
> https://github.com/xapi-project/blktap

blktap3 is actively developed and is the I/O default data path in XenServer 
6.5. The repo you mention is the right one 
(https://github.com/xapi-project/blktap, git branch "xs64bit", but we'll soon 
bring the "master" branch up to date. I'd be more than happy to assist you and 
the developer in porting that patch to blktap3!

Cheers

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