Messages in this thread | | | Subject | RE: [RFC 1/3] Framework for accurate node based statistics | Date | Wed, 7 Dec 2005 10:39:54 -0800 | From | "Luck, Tony" <> |
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>> How big is that array going to get? The total per cpu data area is >> limited to 64K on IA64 and we already use at least 34K. > > Maximum around 1k nodes and I guess we may end up with 16 counters: > > 1024*16*8 = 131k ?
Ouch.
Can you live with a pointer to that monster block of space in the per-cpu area?
Otherwise the next step up is a 256K per cpu area ... which I wouldn't want to make the default (so we'll have another 2*X explosion in the number of possible configs to test).
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