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- Newsgroups: comp.arch
- Path: sparky!uunet!caen!spool.mu.edu!eng.ufl.edu!jon
- From: jon@theta.ee.ufl.edu (Jon Mellott)
- Subject: Re: Def of a workstation (a lark)
- Message-ID: <1993Jan7.143557.27636@eng.ufl.edu>
- Originator: jon@theta.ee.ufl.edu
- Sender: news@eng.ufl.edu (Usenet Diskhog System)
- Organization: EE Dept at UF
- References: <1993Jan3.052930.27869@wam.umd.edu> <1993Jan3.235327.13718@qb.rhein-main.de> <1993Jan6.165640.2894@lsl.co.uk> <C0GJzC.GFJ@metaflow.com>
- Date: Thu, 7 Jan 93 14:35:57 GMT
- Lines: 22
-
-
- In article <C0GJzC.GFJ@metaflow.com>, rschnapp@metaflow.com (Russ Schnapp) writes:
- |> In article <1993Jan6.165640.2894@lsl.co.uk>, snail@lsl.co.uk writes:
- |> |> On a workstation, software does not worry about how much memory it has; just
- |> |> page it out to disk. Microsoft windows can release memory and re-read it from
- |> |> the disk, but it can't page memory *out* to the disk (not unless it changed
- |> |> recently).
- |>
- |> Not terribly recently -- Windows 3.1 has fully virtual memory in
- |> "enhanced mode". (For some reason, they limit virtual memory to twice
- |> the size of physical memory.) I believe that 3.1 has been out for a
- |> year or so.
-
- Well, actually, Windows v3.0 has paged virtual memory in "386 enhanced mode".
- The "discardable segment" scheme of memory management where program and
- static resource segments are discarded to free memory and later re-read was
- there for 286 and lower machines.
-
- Jon Mellott
- High Speed Digital Architecture Laboratory
- University of Florida
- (jon@alpha.ee.ufl.edu)
-