Hi, I am trying to understand Xen''s save VM state works. I have use case where I am running 3 VM''s on a 4-core/8GB server with 1core/2GB per VM. Each of the VM runs an HPC application, and most of the time 1.5GB memory is allocated to the application running in the VM. Now I am trying to do is to pause VM-1 and VM-2. Save their respective states. Reduce their memory and cap CPU to lowest possible value; then to alloacate the taken resource from VM-1 and VM-2 to VM-3 for X amount of time. Once the application in VM-3 is finished, then I reduce it''s CPU/Memory to pre-start stage and re-allocate 1CPU/2GB again to VM-1 and VM-2 My question is; would the application in VM-1 or VM-2 will be able to start executing from the last saved point. Is there a way in Xen to check-point this? Thanks, Omer ************************************** CERN, Engineering Department, CH-1211 Geneva 23, Switzerland Email: Omer.Khalid@cern.ch ************************************** _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi, I am trying to understand Xen''s save VM state works. I have use case where I am running 3 VM''s on a 4-core/8GB server with 1core/2GB per VM. Each of the VM runs an HPC application, and most of the time 1.5GB memory is allocated to the application running in the VM. Now I am trying to do is to pause VM-1 and VM-2. Save their respective states. Reduce their memory and cap CPU to lowest possible value; then to alloacate the taken resource from VM-1 and VM-2 to VM-3 for X amount of time. Once the application in VM-3 is finished, then I reduce it''s CPU/Memory to pre-start stage and re-allocate 1CPU/2GB again to VM-1 and VM-2 My question is; would the application in VM-1 or VM-2 will be able to start executing from the last saved point. Is there a way in Xen to check-point this? Thanks, Omer ************************************** CERN, Engineering Department, CH-1211 Geneva 23, Switzerland Email: Omer.Khalid@cern.ch ************************************** _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Hi, I am trying to understand Xen''s save VM state works. I have use case where I am running 3 VM''s on a 4-core/8GB server with 1core/2GB per VM. Each of the VM runs an HPC application, and most of the time 1.5GB memory is allocated to the application running in the VM. Now I am trying to do is to pause VM-1 and VM-2. Save their respective states. Reduce their memory and cap CPU to lowest possible value; then to alloacate the taken resource from VM-1 and VM-2 to VM-3 for X amount of time. Once the application in VM-3 is finished, then I reduce it''s CPU/Memory to pre-start stage and re-allocate 1CPU/2GB again to VM-1 and VM-2 My question is; would the application in VM-1 or VM-2 will be able to start executing from the last saved point. Is there a way in Xen to check-point this? Thanks, Omer ************************************** CERN, Engineering Department, CH-1211 Geneva 23, Switzerland Email: Omer.Khalid@cern.ch ************************************** _______________________________________________ Xen-research mailing list Xen-research@lists.xensource.com http://lists.xensource.com/mailman/listinfo/xen-research