home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!mips!mash
- From: mash@mips.com (John Mashey)
- Newsgroups: comp.sys.sgi
- Subject: Re: finding page size?
- Date: 19 Aug 1992 04:29:00 GMT
- Organization: MIPS Computer Systems, Inc.
- Lines: 15
- Message-ID: <l93jgcINNpop@spim.mips.com>
- References: <l92h9dINNeqj@spim.mips.com> <1992Aug18.213842.6074@CSD-NewsHost.Stanford.EDU>
- NNTP-Posting-Host: winchester.mips.com
-
- In article <1992Aug18.213842.6074@CSD-NewsHost.Stanford.EDU> philip@ziggy.stanford.edu (Philip Machanick) writes:
-
- >If future architectures have a much lower TLB miss cost this problem would go
- >away. Much larger page sizes could help by reducing the probability that data
- >allocated at different times ends up on a different page and virtually
- >addressed caches would be a help. Since the data fits in RAM it may make sense
- >for a page size = total RAM requirement. I haven't finished measurements and
- >testing but the performance impact of TLB misses in this case appears to be
- o>about 20%.
- This sounds like what bigger pages are for....
- --
- -john mashey DISCLAIMER: <generic disclaimer, I speak for me only, etc>
- UUCP: mash@mips.com [soon to be mash@sgi.com, but not quite moved yet].
- DDD: 408-524-7015, or 524-8253
- USPS: (soon) Silicon Graphics, 2011 N. Shoreline Blvd, Mountain View, CA 94043
-