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SubjectRe: [RFC PATCH 0/2] sched: simplify the select_task_rq_fair()
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aim7 compute

Tasks jobs/min jti jobs/min/task real cpu
1 440.41 100 440.4070 13.76 3.65
5 1923.81 99 384.7619 15.75 26.17
10 4223.00 99 422.2997 14.35 41.66
20 7632.24 87 381.6121 15.88 55.85
40 16378.38 97 409.4595 14.80 169.63
80 32934.78 99 411.6848 14.72 364.50
160 63789.47 98 398.6842 15.20 398.55
320 121200.00 98 378.7500 16.00 471.10
640 213803.75 96 334.0684 18.14 640.05
1280 323334.72 93 252.6053 23.99 1106.92
2560 425846.83 87 166.3464 36.43 2097.59

+simplify select_task_rq_fair()

Tasks jobs/min jti jobs/min/task real cpu
1 441.37 100 441.3693 13.73 3.71
5 1861.18 99 372.2359 16.28 28.87
10 2777.27 99 277.7269 21.82 93.90
20 4069.85 83 203.4923 29.78 140.40
40 6500.40 69 162.5101 37.29 355.66
80 31338.07 96 391.7259 15.47 316.10
160 63207.30 98 395.0456 15.34 405.22
320 122501.58 96 382.8174 15.83 450.57
640 219863.95 91 343.5374 17.64 591.74
1280 333339.06 84 260.4211 23.27 1045.13
2560 428315.85 79 167.3109 36.22 2075.88

Hm, low end takes a big hit.




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