Re: [patch] sched-2.5.59-A2

From: Michael Hohnbaum (hohnbaum@us.ibm.com)
Date: Fri Jan 17 2003 - 13:19:37 EST

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On Fri, 2003-01-17 at 07:11, Ingo Molnar wrote:

> agreed, i've attached the -B0 patch that does this. The balancing rates
> are 1 msec, 2 msec, 200 and 400 msec (idle-local, idle-global, busy-local,
> busy-global).
>
> Ingo

Ran this patch on a 4 node (16 CPU, 16 GB memory) NUMAQ. Results don't
look encouraging. I would suggest not applying this patch until the
degradation is worked out.

stock59 = linux 2.5.59
ingo59 = linux 2.5.59 with Ingo's B0 patch

Kernbench:
                        Elapsed User System CPU
             stock59 29.668s 283.762s 82.286s 1233%
              ingo59 37.736s 338.162s 153.486s 1302.6%

Schedbench 4:
                        AvgUser Elapsed TotalUser TotalSys
             stock59 0.00 24.44 68.07 0.78
              ingo59 0.00 62.14 163.32 1.93

Schedbench 8:
                        AvgUser Elapsed TotalUser TotalSys
             stock59 0.00 48.26 246.75 1.64
              ingo59 0.00 68.17 376.85 6.42

Schedbench 16:
                        AvgUser Elapsed TotalUser TotalSys
             stock59 0.00 56.51 845.26 2.98
              ingo59 0.00 114.38 1337.65 18.89

Schedbench 32:
                        AvgUser Elapsed TotalUser TotalSys
             stock59 0.00 116.95 1806.33 6.23
              ingo59 0.00 243.46 3515.09 43.92

Schedbench 64:
                        AvgUser Elapsed TotalUser TotalSys
             stock59 0.00 237.29 3634.59 15.71
              ingo59 0.00 688.31 10605.40 102.71

Michael Hohnbaum 503-578-5486 hohnbaum@us.ibm.com T/L 775-5486

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