Re: Debate: PowerMac "trounces" Pentium....???

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Article #2835

#2835

From: Christopher C. Wood
Date: Tue, 16 Jan 1996 17:41

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In article <DL7383.5Bv@wombat.hanse.de>, root@wombat.hanse.de (Bernd "Bernie" Meyer) writes:

|> *Grin* the reason for this is that the Mac's VM is such an easy target.
|> The so called "Ram compressors" resort to compressing RAM only after
|> all other methods fail 

Wrong.

Connectix RamDoubler first tries to use RAM pages that are allocated
to other processes but not in use.  It uses these pages without any
backing store.  When they're gone, it will try and compress some pages
(least recently used?) into some ram it allocates for that purpose.
Decompressing a compressed page in RAM is faster than hitting the
disk.  When there is no more room in the compressed RAM cache, then
RamDoubler finally resorts to swapping pages to disk.

Chris
-- 
Speaking only for myself, of course.
Chris Wood    christw@lexis-nexis.com   ChrisCWood@eworld.com

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<4cf46j$1ev4@hopi.gate.net> <DKuFyA.D52@murdoch.acc.Virginia.EDU> <4csn1n$klb@macshack.com> <DKxzFK.2r6@eskimo.com> <4d3m6o$bb6@macshack.com> <4da419$skl@castle.nando.net> <DL7383.5Bv@wombat.hanse.de>

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Path: arc1-ca.pugleaf.net!in2.uu.net!lexis-nexis!meaddata!christw
From: christw@meaddata.com (Christopher C. Wood)
Newsgroups: comp.sys.powerpc,comp.os.linux.advocacy,comp.sys.mac.advocacy,comp.os.os2.advocacy,comp.sys.amiga.advocacy,comp.sys.intel,alt.2600
Subject: Re: Debate: PowerMac "trounces" Pentium....???
Date: 16 Jan 1996 17:41:15 GMT
Organization: LEXIS-NEXIS, Dayton OH
Message-ID: <4dgnvr$fr@meaddata.lexis-nexis.com>
References: <4cf46j$1ev4@hopi.gate.net> <DKuFyA.D52@murdoch.acc.Virginia.EDU> <4csn1n$klb@macshack.com> <DKxzFK.2r6@eskimo.com> <4d3m6o$bb6@macshack.com> <4da419$skl@castle.nando.net> <DL7383.5Bv@wombat.hanse.de>
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