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Subject: Buffer pages?


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Date Posted: 16:35:00 11/Dec/2007

Varðandi sýnidæmi bls. 410
Í bókinni er talað um að þar sem 5 buffer pages eru til staðar sé hægt að sortera T1 í tveim umferðum og T2 í 4 umferðum. T1 hefur 10 pages en T2 hefur hins vegar 250 pages. Undir lok kaflans talar hann síðan um að með því að minnka T2 geti hann náð að sortera hana í 3 umferðum. Skiljanlega þarf að dæla hluta af hverri töflu sjaldnar inn í bufferinn eftir því sem töflur eru minni en hvernig reiknar hann það út?

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Re: Buffer pages?Hjálmtýr21:58:54 11/Dec/2007


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