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tests: Add migration dirty-limit capability test
Add migration dirty-limit capability test if kernel support dirty ring. Migration dirty-limit capability introduce dirty limit capability, two parameters: x-vcpu-dirty-limit-period and vcpu-dirty-limit are introduced to implement the live migration with dirty limit. The test case does the following things: 1. start src, dst vm and enable dirty-limit capability 2. start migrate and set cancel it to check if dirty limit stop working. 3. restart dst vm 4. start migrate and enable dirty-limit capability 5. check if migration satisfy the convergence condition during pre-switchover phase. Note that this test case involves many passes, so it runs in slow mode only. Signed-off-by: Hyman Huang <yong.huang@smartx.com> Acked-by: Peter Xu <peterx@redhat.com> Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <e55a302df9da7dbc00ad825f47f57c1a756d303e.1698847223.git.yong.huang@smartx.com>
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