hyper-v 2012 r2 host kernel memory ballooning

i've noticed hyper-v 2012 r2 hosts growing kernel memory, appears doesn't stop grow.
one of hosts grew 80gb, server equipped 200gb - it's 50%.
only way flush kernel memory restart host.
i've done set reserved hyper-v parent host memory, using hklm\software\microsoft\windows nt\currentversion\virtualization\memoryreserve
but doesn't seem take effect, kernel memory still growing.
please assist.

you not need worry paged memory.  means operating system doing job placing 'unnecessary' stuff page file allow real memory used real work.  nonpaged number real number need concerned about, , number seems within bounds of 128gb system.  granted, paged number higher mine, sure running different tasks in parent partition.  example, not running dell utilities.  grins, try stopping utilities see happens.  haven't tried it, if make page file smaller, might make paged number smaller, too.  on hyper-v systems, tend limit page file maximum of 4 gb initial size of 1 gb.  since parent partition should not hard paging, ensure have enough physical memory on systems don't use page file much.  looks of memory report, have plenty of physical memory don't need large page file windows automatically create.

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Windows Server  >  Hyper-V