Technical data

SDA Description
SHOW PROCESS/INDEX=nn
No other SDA commands affect the ‘‘SDA current CPU.’’
Note
When you analyze the running system, you cannot use the SET CPU
and SHOW CPU commands because SDA does not have access to all the
CPU-specific information about the running system.
6 Process Context
In a uniprocessor system, process context might be the process that is current
on the CPU or the process in whose context process-specific SDA commands
are interpreted. For a multiprocessor system with more than one active CPU,
however, the meaning of ‘‘SDA process context’’ changes so that it includes a way
to display information relevant to a specific process both when the process is
current on a processor and when the process is not.
You can use several SDA commands to change SDA process context. Following is
a list of the results of some of these changes:
• When you change the ‘‘SDA current process’’ to the current process on a CPU,
the ‘‘SDA current CPU’’ is changed to the new CPU to synchronize CPU
context and process context.
• When you change the ‘‘SDA current process’’ to a process that is not current
on any processor, the ‘‘SDA current CPU’’ is not changed.
• When you change the SDA CPU context to a CPU that has no current process,
the ‘‘SDA current process’’ is undefined; no process context information is
available until you set SDA process context to a specific process.
Type HELP CPU_CONTEXT for specific information about the ‘‘SDA current
CPU.’’
The following SDA commands change the ‘‘SDA current process’’:
Command Description
SET PROCESS name Changes the ‘‘SDA current process’’ to the named
process
SET PROCESS /INDEX=n Changes the ‘‘SDA current process’’ to the process with
index n
SHOW PROCESS name Changes the ‘‘SDA current process’’ to the named
process
SHOW PROCESS /INDEX=n Changes the ‘‘SDA current process’’ to the process with
index n
The following commands change the SDA process context if the ‘‘SDA current
process’’ is not the current process on the selected CPU:
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