Messages in this thread | | | Subject | Re: maximum possible memory limit .. | From | Valdis.Kletnieks@vt ... | Date | Thu, 24 Apr 2003 14:35:59 -0400 |
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On Thu, 24 Apr 2003 20:05:24 +0200, Henti Smith <bain@tcsn.co.za> said: > I had a discussion with somebody watching the whole M$ server launch and > mentioned then new systems supports up to a terabyte of ram.
Well.. sure.. it's easy enough to write something that supports plugging in a terabyte. The *tricky* part is supporting it well - you have page table issues, you have swapping/thrashing issues (if you *do* have to page something out, you're in trouble.. ;), you have process scheduling issues (how many Apache processes does it take to use up a terabyte? What's your load average at that point?), you have multi-processor scaling issues (you're gonna want to have 64+ processors, etc..)
Consider - the number of machines with over a terabyte of RAM is limited:
http://www.llnl.gov/asci/platforms/platforms.html
That's the sort of box that has a terabyte. Do you *really* think that M$ 2003 has all the stuff needed to scale to THAT size?
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