gardenlinux: add PoC for pre-copy auto-converge#11
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Add handling of migration timeout failures to provide more flexible live migration options. Implement downtime limiting logic to minimize service disruptions. Support for setting downtime thresholds and migration timeouts. Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
Updated live migration documentation to include migration timeout controls and downtime limits. Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
Live migration generates a large number of logs with GPA and size information for memory regions. Adjusting the level to debug avoids excessive logging while retaining the information needed for debugging. Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
This patch fixes an issue that the loop didn't exit in time when threshold wasn't set. Signed-off-by: Songqian Li <sionli@tencent.com>
Add handling of migration timeout failures to provide more flexible live migration options. Implement downtime limiting logic to minimize service disruptions. Support for setting downtime thresholds and migration timeouts. Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
auto-converge (vCPU throttling) is a crucial technique to migrate VMs with a high dirty rate (high working set with intense usage). It is an alternative to postcopy migration, which is not yet implemented in Cloud Hypervisor. vCPU throttling was implemented with a different thread and a manager for that thread. It is possible to abort vCPU throttling in case one aborts a live-migration, for example. The rather complex thread state management is covered in a unit test ensuring liveliness throughout all possible scenarios. The throttling itself is implemented by utilizing the CpuManager and its pause() and resume() functions. Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de> On-behalf-of: SAP philipp.schuster@sap.com
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@phip1611 can you have a look at the pipeline erros? They look genuine. |
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This includes the cherry-picked branches from the upstream PR 7033 and my PoC.