>Its me once again this time with general memory concerned questions >(probably FAQ worthy, couldn't find it there) > >Questions 1: Quemu seems to come with a hardwired memory limit of 2047MB >for 1 guest. Altough it still doesn't work until setting to quite some >safe distance. I have 1536 MB set for 1 big server now. Are there any >ways to bust this memory limit? For example setting the kernel base up >or down? (don't know which way, since kvm uses user and kernel space). >The Xeon Quadcore-processors the host has should be able to do 64-bit >also, however except setting the 64 GB high-memory in linux, I have not >yet specified anything special for 64bitness. Nor special compiletime >options for kvm/qemu if they are needed to enable 64bit to address large >chunks of memory.
We have 2G limit because of sign/unsign variables. It waits for someone to pick it up. There is no special thing you need to the for 64 bit if your host OS is x86_64. >Question 2: Is the memory I reserve for a guest taken away instantly, or >is memory allocated as needed by the guest? The host has 16 GB memory >(32 was unpayable expensive), so this means I can theoretically run e.g. >max 15 guests with 1 GB allocated? (1 reserved for the host). Or does >it mean when dynamic memory is allocated as needed, I can allocate more >and the kernel just gets to its usual process buster routine (killing a >kvm) when it gets out of memory? The memory is taken and VM boot time (memory_slot). It is allocated by the kernel. If you want to overload memory you'll need balloon driver (exist but unmerged) or use unstable host paging patch. >Just a Note 1: Altough the qemu FAQ advices to install APM on windows >systems, Windows 2003 Server Enterprise Edition does *not* support APM >at all (done some exhautive research on that) ***grrr microsoft*** > >Kind Regards! - Axel > >----------------------------------------------------------------------- -- >This SF.net email is sponsored by DB2 Express >Download DB2 Express C - the FREE version of DB2 express and take >control of your XML. No limits. Just data. Click to get it now. >http://sourceforge.net/powerbar/db2/ >_______________________________________________ >kvm-devel mailing list >[email protected] >https://lists.sourceforge.net/lists/listinfo/kvm-devel ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ kvm-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kvm-devel
