[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Memory and Xen
I understand that right now all domains must have their memory backed by physically un-allocated memory. Are there any plans to change this in the future? I'm thinking there would be a way where you can allocate a domain more memory than currently available and for any excess it would use the systems swap space. A priority could then be set for domains that should be swapped out first and those that should never be swapped out. Another option would be a guaranteed amount of physical memory that could be set for each domain, if the guarantee is exceeded and the system is low on memory the excess pages would be swapped out of domains. I understand the current functionality may be a limit of the method used and this is not possible, in that case ignore this :) My reason for thinking of this is in the event that a new domain must be started up on a server, but there is no un-allocated memory to start it. Other domains may have memory allocated, but only actually be using 1/4 of it. In cases like this it would make sense to let the new domain "borrow" the memory. As mentioned above, if the domain who was previously was not using all of it's memory suddenly does want to use it there should be a method to swap pages out. -- Matt Ayres <matta@xxxxxxxxxxxx> TekTonic ------------------------------------------------------- This SF. Net email is sponsored by: GoToMyPC GoToMyPC is the fast, easy and secure way to access your computer from any Web browser or wireless device. Click here to Try it Free! https://www.gotomypc.com/tr/OSDN/AW/Q4_2003/t/g22lp?Target=mm/g22lp.tmpl _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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