Re: [Qemu-devel] [PATCH 1/6] tests: Add basic migration precopy test

[Juan Quintela <quintela@redhat.com>]

Thomas Huth <thuth@redhat.com> wrote:
> On 04.10.2017 12:39, Juan Quintela wrote:
>> Signed-off-by: Juan Quintela <quintela@redhat.com>

>
> Looks like a lot of this code is the same or very similar to the code in
> postcopy-test.c ... would it make sense to factor-out that code there
> into a separate file that could be used by both tests, so that we do not
> have to maintain the code twice?


I think I put that on the cover letter,  my idea is to add the postcopy
test here.  This is a streamlined version of the postcopy-test, just a
barebones, and insntead of doing things by hand, I added helpers like:

migrate_set_parameter(...);

You can see that on the following patches I added support for:
- tcp
- precopy with deprecated commands
- xbzrle
- compression threads (not working at the momment, have to investigate
  why).

Idea is if people like the approach to add on top of that:
- exec: migration (needs changes because command line option on source
  and destination are different)
- fd: Dunno how difficult is, I have really never passed fd's around.
- postocpy: It needs additional commandsn to be added.

- Probably move to use events, instead of "waiting" for 1st stage to
  finish.

Right now, the three tests on my laptop require around 14 seconds (not
running in parallel).  I want to "optimize" the tests to take a bit less
time.

Later, Juan.