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Re: ARC patent

From: Marian POPESCU <softexpert(at)libertysurf(dot)fr>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: ARC patent
Date: 2005-03-31 08:23:59
Message-ID: d2gc0p$ssu$1@sea.gmane.org (view raw or flat)
Thread:
Lists: pgsql-hackers
Tom Lane wrote:
> Neil Conway <neilc(at)samurai(dot)com> writes:
> 
>>FYI, IBM has applied for a patent on ARC (AFAICS the patent application
>>is still pending, although the USPTO site is a little hard to grok):
> 
> 
>>http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220040098541%22.PGNR.&OS=DN/20040098541&RS=DN/20040098541
> 
> 
> Ugh.  We could hope that the patent wouldn't be granted, but I think
> it unlikely, unless Jan is aware of prior art (like a publication
> predating the filing date).  I fear we'll have to change or remove
> that code.
> 
> 			regards, tom lane
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 7: don't forget to increase your free space map settings
> 
And what about "CAR: Clock with Adaptive Replacement"?

I found something here:
http://www.cs.duke.edu/csl/usenix/04fast/tech/bansal.html

Is it worth investigating?

best wishes,
marian


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