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Subject: Re: [patch] sched-2.5.59-A2
From: Michael Hohnbaum <hohnbaum@us.ibm.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Erich Focht <efocht@ess.nec.de>, "Martin J. Bligh" <mbligh@aracnet.com>,
       Christoph Hellwig <hch@infradead.org>, Robert Love <rml@tech9.net>,
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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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