IBM 8687 - Eserver xSeries 440, Planning And Installation Manual

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xSeries 440 Planning and Installation Guide
Figure 5-36 Process group priority
Group process priority has the effect of assigning the same process priority to
every process in the group. This overrides the priority setting assigned by the
application vendor, and ensures that every process in the group is granted equal
priority. This prevents any process in the group from consuming a
disproportionally large or small number of CPU cycles, in relation to other
processes granted the same priority.
To determine what priority processes have natively run the process, open Task
Manager, select the Processes tab, select View -> Select Columns, and select
Base Priority as shown in Figure 5-37 on page 165.
Attention: Realtime priority (the highest priority class) should be used with
great care. It is possible to create a process or process group that does not
relinquish control of the CPU(s) long enough for Windows 2000 to perform
other important work.
If realtime priority is to be used, you should be sure that the process or group
using it cannot consume all the CPUs simultaneously and that other important
tasks can run on CPUs that are not potentially blocked by the realtime tasks.