These are the results for system 1 System 1 specifications Component Description Processor AMD Athlon XP 2500+ (Barton) RAM 1 GB Swap 6 GB Operating System Red Hat Linux 9 Kernel 2.4.21-rc7-ac1 R 1.7.1 affy 1.3.6 for 5 arrays Reading time is : 3.26 0.22 3.51 0 0 rma() : 16.14 0.31 16.54 0 0 expresso() : 92.67 1.96 94.84 0 0 Method 1 : 19.4 0.53 20.05 0 0 Method 2 : 95.93 2.18 98.35 0 0 Method 3 : 10.87 0.51 11.48 0 0 Method 4 : 11.54 0.22 11.86 0 0 for 10 arrays Reading time is : 5.93 0.34 6.31 0 0 rma() : 18.98 0.35 19.42 0 0 expresso() : 111.14 3.28 114.63 0 0 Method 1 : 24.91 0.69 25.73 0 0 Method 2 : 117.07 3.62 120.94 0 0 Method 3 : 20.17 0.74 21.01 0 0 Method 4 : 19.41 0.37 19.9 0 0 for 15 arrays Reading time is : 8.36 0.52 8.91 0 0 rma() : 25 0.33 25.44 0 0 expresso() : 144.96 4.04 149.23 0 0 Method 1 : 33.36 0.85 34.35 0 0 Method 2 : 153.32 4.56 158.14 0 0 Method 3 : 29.05 1.03 30.19 0 0 Method 4 : 27.48 0.34 27.94 0 0 for 20 arrays Reading time is : 10.51 0.79 11.35 0 0 rma() : 31.16 0.35 31.65 0 0 expresso() : 171.24 4.67 176.13 0 0 Method 1 : 41.67 1.14 43 0 0 Method 2 : 181.75 5.46 187.48 0 0 Method 3 : 37.71 1.74 39.57 0 0 Method 4 : 35.55 0.42 36.09 0 0 for 25 arrays Reading time is : 12.8 1.07 13.91 0 0 rma() : 37.61 0.37 38.09 0 0 expresso() : 202.39 6.32 217.16 0 0 Method 1 : 50.41 1.44 52 0 0 Method 2 : 215.19 7.39 231.07 0 0 Method 3 : 46.28 1.55 48.46 0 0 Method 4 : 43.38 0.48 43.97 0 0 for 30 arrays Reading time is : 15.26 1.19 16.51 0 0 rma() : 43.29 0.51 43.92 0 0 expresso() : 230.04 7.79 254.68 0 0 Method 1 : 58.55 1.7 60.43 0 0 Method 2 : 245.3 8.98 271.19 0 0 Method 3 : 55.64 1.88 61.97 0 0 Method 4 : 51.88 0.56 52.58 0 0 for 35 arrays Reading time is : 17.54 1.4 19.02 0 0 rma() : 49.75 0.34 50.18 0 0 expresso() : 265.64 10.66 332.09 0 0 Method 1 : 67.29 1.74 69.2 0 0 Method 2 : 283.18 12.06 351.11 0 0 Method 3 : 64.42 2.82 71.69 0 0 Method 4 : 59.6 0.85 60.55 0 0 for 40 arrays Reading time is : 20.09 1.45 21.6 0 0 rma() : 55.85 0.53 56.48 0 0 expresso() : 290.97 10.86 376.96 0 0 Method 1 : 75.94 1.98 78.08 0 0 Method 2 : 311.06 12.31 398.56 0 0 Method 3 : 74.34 2.36 85.79 0 0 Method 4 : 68.7 0.78 69.69 0 0 for 50 arrays Reading time is : 24.97 2.22 31.79 0 0 rma() : 69.62 0.7 80.55 0 0 expresso() : 357.76 21.4 785.33 0 0 Method 1 : 94.59 2.92 112.34 0 0 Method 2 : 382.73 23.62 817.12 0 0 Method 3 : 91.34 2.91 114.77 0 0 Method 4 : 84.71 0.67 85.52 0 0 for 60 arrays Reading time is : 29.51 2.74 32.91 0 0 rma() : 84.62 5.23 90.36 0 0 Method 1 : 114.13 7.97 123.27 0 0 expresso() : 425.66 30.92 1277.24 0 0 Method 2 : 455.35 34.08 1330.58 0 0 Method 3 : 109.85 9.95 120.42 0 0 Method 4 : 102.73 4.45 107.45 0 0 for 70 arrays Reading time is : 34.15 2.78 36.96 0 0 rma() : 96.06 5.84 102.01 0 0 Method 1 : 130.21 8.62 138.97 0 0 Method 3 : 127.27 10.19 137.6 0 0 Method 4 : 117.54 5.06 122.69 0 0 for 80 arrays Reading time is : 39.28 3.53 50.67 0 0 rma() : 106.11 5.51 115.95 0 0 Method 1 : 145.39 9.04 166.62 0 0 Method 3 : 146.45 10.95 157.51 0 0 Method 4 : 133.15 5.76 139.01 0 0 for 90 arrays Reading time is : 44.04 5.22 89.82 0 0 rma() : 118.65 6.19 134.71 0 0 Method 1 : 162.69 11.41 224.53 0 0 Method 3 : 163.45 11.58 175.64 0 0 Method 4 : 149.45 5.25 154.8 0 0 for 100 arrays Reading time is : 49 5.92 99.06 0 0 rma() : 133.14 6.73 186.9 0 0 Method 1 : 182.14 12.65 285.96 0 0 Method 3 : 182.45 13.38 207.25 0 0 Method 4 : 165.93 5.4 173.85 0 0 for 125 arrays Reading time is : 60.6 11.18 193.77 0 0 rma() : 167.94 9.93 266.37 0 0 Method 1 : 228.54 21.11 460.14 0 0 Method 3 : 242.56 19.21 261.96 0 0 Method 4 : 209.43 10.07 219.77 0 0 for 150 arrays Method 3 : 294.04 22.96 320.72 0 0 Method 4 : 252.09 11.83 264.3 0 0 for 175 arrays Method 3 : 338.48 23.2 395.06 0 0 Method 4 : 294.87 13.66 309.39 0 0 for 200 arrays Method 3 : 387.67 30.76 447.93 0 0 Method 4 : 336.48 16.89 379.73 0 0 for 250 arrays Method 3 : 482.64 39.59 603.84 0 0 Method 4 : 427.87 19.21 507.97 0 0 for 300 arrays Method 3 : 579.76 49.37 750.93 0 0 Method 4 : 502.72 28.76 699.6 0 0 for 350 arrays Method 3 : 667.16 60.41 948.7 0 0 Method 4 : 587.6 36.58 889.16 0 0 for 400 arrays Method 3 : 776.84 72.56 1218.95 0 0 Method 4 : 673.24 41.38 1084.71 0 0 for 500 arrays Method 3 : 970.89 93.84 1891.04 0 0 Method 4 : 863.76 57.42 1648.08 0 0