02-02-2008
Thanks Perderabo,
I'm not explicitly using nice or renice. The bulk of the processes running on the two boxes are identical. These processes saturate the CPU, its a batch machine, if the batch job is not running the machine is idle. The set of processes on a machine make up a single job, if one of the processes is niced out to let another run then the overall job should run in the same time (minus some time for swapping tasks around). However, with the same processes and the same load, one machine displays a lot of nice activity in top, the other doesn't ever show nice above 0%, and these runs last many hours or days at 100% CPU. The machine without nice activity finishes its 50% share of the load well before the other does. I'm not sure what is meant by "copy the good one to the bad one".
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