Lines Matching +full:keep +full:- +full:a +full:- +full:live

4 The dirty limit, short for dirty page rate upper limit, is a new capability
5 introduced in the 8.1 QEMU release that uses a new algorithm based on the KVM
6 dirty ring to throttle down the guest during live migration.
12   ------------------------------------------------------------------------------
13   main   --------------> throttle thread ------------> PREPARE(1) <--------
17              -\                                        CALCULATE(2)       |
21                   \                                    SET PENALTY(3) -----
22                    -\                                      |
25                        -> virtual CPU thread -------> ACCEPT PENALTY(4)
26   ------------------------------------------------------------------------------
32   - PREPARE (1)
38      which tells QEMU how many dirty pages a virtual CPU has had since the
42   - CALCULATE (2)
44      Calculate a suitable sleep period for each virtual CPU, which will be
51      from the limit; the second is to add or subtract a fixed time when
54   - SET PENALTY (3)
69 algorithm will restrict virtual CPUs as needed to keep their dirty page
71 live migration and can aid in improving large guest responsiveness.