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Subject: Re: 10K SCSI vs 7200 IDE

Author: Slater Wold

Date: 06:11:36 01/16/02

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On January 16, 2002 at 05:30:57, Tony Werten wrote:

>On January 16, 2002 at 02:08:59, Slater Wold wrote:
>
>>On January 16, 2002 at 02:03:52, pavel wrote:
>>
>>>what does it prove?
>>>one is in depth 21 (IDE) the other one is in depth 22 (SCSI)
>>>
>>>in the same depth with SCSI, junior took 2:20 time
>>
>>It failed high (solving the problem) 4 seconds quicker on the SCSI drive.
>>
>>Also, if you do the math, the TB hits are far better.  On most runs, somewhere
>>close to 10% better.
>
>Something is wrong. On ply 21, the ide drive had 17% more egtb hits. (so it
>makes sence it's slower). They should be exactly the same in hitcount, so one of
>your egtb files is corrupt or missing.

Not at all.  Faster accessing to the TB's = getting more ply.  17% faster TB
access = 17% faster to ply.

With SCSI it took 2:20 to get to ply 21, while with IDE it took 2:57.  Speeding
up the search by 37 seconds.

I don't have corrupt TB's, but of course the 6 man is not complete.  They are
not all available yet.

>
>Tony
>
>>
>>>
>>>>  -+  (-3.21)   Depth: 21   00:02:20  198715kN, tb=99381
>>>>92...Ke3 93.Bf4+ Kd3 94.Bxg3 Rxg3 95.Kf2 Re3 96.Rf4 Nd2 97.Kg2 Re2+ 98.Kh3 Ke3
>>>>99.Rg4 Ne4 100.Rg1 Rb2 101.Rg7 Kxd4
>>>
>>>& with IDE it took,
>>>
>>> >  -+  (-3.20)   Depth: 21   00:02:57  223520kN, tb=117623
>>>>92...Ke3 93.Bf4+ Kd3 94.Bxg3 Rxg3 95.Kf2 Re3 96.Rf4 Nd2 97.Kg2 Re2+ 98.Kh3 Kc4
>>>>99.Kg3 Ne4+ 100.Kg4 Kxd4 101.Rf3
>>>
>>>
>>>the pv, tb hits, nodes, or not even the score is the same.
>>>
>>>I don't get it.
>>>
>>>maybe I am missing something?
>>>
>>>I use IDE, how much differance is speed (and eventually in performance) can i
>>>expect?
>>>
>>>
>>>regards,
>>>pavs



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