test1_num3 - 0.2 mS Sdr = Tc Tsr Trr Tt 14.47 mS Job...

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Sheet1 Page 1 Start unit Multiplier Final unit mS 1 mS S 1000 mS Min 60000 mS Hours 3600000 mS Days 86400000 mS Years 31536000000 mS
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Sheet2 Page 2 Given By: Ben Viall Requests arrive at 10 Jobs / S 3/13/2008 Therefore Lambda = 0.01 Jobs / mS ben Viall Random = 30.00% Not random = 70.00% Block Size = 2048 Bytes Average run length= 12 Disk rotational speed= 7200 Rot / Min Therefore Rotation Time = 8.33 mS / Rot Seek random = 10 mS Transfer Rates 1.00E+07 Bytes / S Control time = 0.1 mS Compute Sdr = Tc + Tsr + Trr + Tt Tc = given 0.1 mS Tsr = Seek Random 10 mS Trr = ½ * Rotation Time 4.17 mS Tt = Blk Sz/Transfer Rt.
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Unformatted text preview: 0.2 mS Sdr = Tc + Tsr + Trr + Tt 14.47 mS / Job compute Sds = Tc + Pmiss*Tt + Tss +Trs Tc= given 0.1 mS Pmiss=1/Run Length 8.33% Tt = Blk Sz/Transfer Rt. 0.2 mS Tss = Seek rand/Run Len 0.83 mS U1st guess 0.14 Trs(1st)= 4.72 mS Sds= 5.67 Compute Sd=R*Sdr+(1-R)*Sds Sd 8.31 8.15 8.14 8.14 8.14104659 8.14104659 New U 0.08 0.08 0.08 0.08 0.08141047 0.08141047 New Trs 4.48 4.48 4.48 4.48 4.47760942 4.47760942 New Sds 5.43 5.43 5.43 5.43 5.42800942 5.42800942 2 nd 3 rd 4 th 9 th 10 th...
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test1_num3 - 0.2 mS Sdr = Tc Tsr Trr Tt 14.47 mS Job...

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