On 11/13/2012 8:18 AM, Juan Quintela wrote:
Hi
If you have anything else to put, please add.
Migration Thread
* Plan is integrate it as one of first thing in December (me)
* Remove copies with buffered file (me)
Bitmap Optimization
* Finish moving to individual bitmaps for migration/vga/code
* Make sure we don't copy things around
* Shared memory bitmap with kvm?
* Move to 2MB pages bitmap and then fine grain?
If its not already implied in the above ... the long freezes observed
at the start of the migration needs to be addressed (its most likely
related to BQL ?).
QIDL
* Review the patches (me)
PostCopy
* Review patches?
* See what we can already integrate?
I remember for last year that we could integrate the 1st third or so
RDMA
* Send RDMA/tcp/.... library they already have (Benoit)
* This is required for postcopy
* This can be used for precopy
Not sure if what Benoit has can be directly used for pre-copy also.
As Paolo said... we need to look at RDS API's for pre-copy. ('have just
started looking at the same). Would like to know if SDP can be used...
General
* Change protocol to:
a) being always 16byte aligned (paolo said that is faster)
b) do scatter/gather of the pages?
Control of where the migration thread(s) run...
--
BTW, has anyone tried doing multiple guest migration from a host ? Are
there limitations (enforced via higher level management tools) as to
how many guests can be migrated at once (in an attempt to quickly
evacuate a flaky host) ?
Vinod
Fault Tolerance
* That is built on top of migration code, but I have nothing to add.
Any more ideas?
Later, Juan.
.
