Re: NUMA scheduler (was: 2.5 merge candidate list 1.5)

Martin J. Bligh (mbligh@aracnet.com)
Sun, 27 Oct 2002 16:46:22 -0800


OK, so I tried Michael's without the balance_exec code as well,
then Erich's main patch with Michael's balance_exec (which seems
to be cheaper to calculate). Turns out I was actually running an
older version of Michael's patch .... with his latest stuff it
actually seems to perform better pretty much across the board
(comaring 2.5.44-mm4-focht-12 and 2.5.44-mm4-hbaum-12). And it's
also a lot simpler.

Erich, what does all the pool stuff actually buy us over what
Michael is doing? Seems to be rather more complex, but maybe
it's useful for something we're just not measuring here?

2.5.44-mm4 Virgin
2.5.44-mm4-focht-1 Focht main
2.5.44-mm4-hbaum-1 Hbaum main
2.5.44-mm4-focht-12 Focht main + Focht balance_exec
2.5.44-mm4-hbaum-1 Hbaum main + Hbaum balance_exec
2.5.44-mm4-f1-h2 Focht main + Hbaum balance_exec

Kernbench:
Elapsed User System CPU
2.5.44-mm4 19.676s 192.794s 42.678s 1197.4%
2.5.44-mm4-focht-1 19.46s 189.838s 37.938s 1171%
2.5.44-mm4-hbaum-1 19.746s 189.232s 38.354s 1152.2%
2.5.44-mm4-focht-12 20.32s 190s 44.4s 1153.6%
2.5.44-mm4-hbaum-12 19.322s 190.176s 40.354s 1192.6%
2.5.44-mm4-f1-h2 19.398s 190.118s 40.06s 1186%

Schedbench 4:
Elapsed TotalUser TotalSys AvgUser
2.5.44-mm4 32.45 49.47 129.86 0.82
2.5.44-mm4-focht-1 38.61 45.15 154.48 1.06
2.5.44-mm4-hbaum-1 37.81 46.44 151.26 0.78
2.5.44-mm4-focht-12 23.23 38.87 92.99 0.85
2.5.44-mm4-hbaum-12 22.26 34.70 89.09 0.70
2.5.44-mm4-f1-h2 21.39 35.97 85.57 0.81

Schedbench 8:
Elapsed TotalUser TotalSys AvgUser
2.5.44-mm4 39.90 61.48 319.26 2.79
2.5.44-mm4-focht-1 37.76 61.09 302.17 2.55
2.5.44-mm4-hbaum-1 43.18 56.74 345.54 1.71
2.5.44-mm4-focht-12 28.40 34.43 227.25 2.09
2.5.44-mm4-hbaum-12 30.71 45.87 245.75 1.43
2.5.44-mm4-f1-h2 36.11 45.18 288.98 2.10

Schedbench 16:
Elapsed TotalUser TotalSys AvgUser
2.5.44-mm4 62.99 93.59 1008.01 5.11
2.5.44-mm4-focht-1 51.69 60.23 827.20 4.95
2.5.44-mm4-hbaum-1 52.57 61.54 841.38 3.93
2.5.44-mm4-focht-12 51.24 60.86 820.08 4.23
2.5.44-mm4-hbaum-12 52.33 62.23 837.46 3.84
2.5.44-mm4-f1-h2 51.76 60.15 828.33 5.67

Schedbench 32:
Elapsed TotalUser TotalSys AvgUser
2.5.44-mm4 88.13 194.53 2820.54 11.52
2.5.44-mm4-focht-1 56.71 123.62 1815.12 7.92
2.5.44-mm4-hbaum-1 54.57 153.56 1746.45 9.20
2.5.44-mm4-focht-12 55.69 118.85 1782.25 7.28
2.5.44-mm4-hbaum-12 54.36 135.30 1739.95 8.09
2.5.44-mm4-f1-h2 55.97 119.28 1791.39 7.20

Schedbench 64:
Elapsed TotalUser TotalSys AvgUser
2.5.44-mm4 159.92 653.79 10235.93 25.16
2.5.44-mm4-focht-1 55.60 232.36 3558.98 17.61
2.5.44-mm4-hbaum-1 71.48 361.77 4575.45 18.53
2.5.44-mm4-focht-12 56.03 234.45 3586.46 15.76
2.5.44-mm4-hbaum-12 56.91 240.89 3642.99 15.67
2.5.44-mm4-f1-h2 56.48 246.93 3615.32 16.97

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