Date: Sat, 19 Feb 2000 11:47:50 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Arun Sharma <adsharma@sharmas.dhs.org> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: 64bit OS? Message-ID: <200002191947.LAA96660@apollo.backplane.com> References: <20000218150219.A17763@sharmas.dhs.org> <200002190006.QAA82061@apollo.backplane.com> <20000218170214.D18203@sharmas.dhs.org>
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:Madhu Talluri's paper on page tables for 64 bit address spaces claims that
:having collision chains is expensive - for 8 bytes of mapping information,
:the pointer and tag storage overhead is 16 bytes.
:
:Though page table space is important, in the age of big memory computers,
:I think performance and manageability are more important.
:
: -Arun
I wasn't thinking of having collision chains, at least not long ones.
But I see what you mean.
-Matt
Matthew Dillon
<dillon@backplane.com>
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