Tunable Kernel Parameters

Process Management Subsystem
Process Management Parameter Summary
Chapter 8
49
Process Parameter Summary
See also “Process Management” on page 50.
Kernel Threads Parameter Summary
See also “Kernel Threads” on page 50.
ProcessMgmt:
Memory
pa_maxssiz_64bit Maximum size (in bytes) of the stack for a user process
running under the PA-RISC emulator on IPF. Manpage:
pa_maxssiz (5).
ProcessMgmt:
Process
executable_stack Allows or denies program execution on the stack.
Manpage: executable_stack (5).
ProcessMgmt:
Process
maxuprc Maximum number of processes that any single user can
have running at the same time, including login shells, user
interface processes, running programs and child processes,
I/O processes, etc. If a user is using multiple, simultaneous
logins under the same login name (user ID) as is common
in X Window, CDE, or Motif environments, all processes
are combined, even though they may belong to separate
process groups. Processes that detach from their parent
process group, where that is possible, are notcounted after
they detach (line printer spooler jobs, certain specialized
applications, etc.). Manpage: maxuprc (5).
ProcessMgmt:
Process
nproc Defines the maximum number of processes that can be
running simultaneously on the entire system, including
remote execution processes initiated by other systems via
remsh or other networking commands. Manpage: nproc
(5).
ProcessMgmt:
Process
secure_sid_scripts Controls whether setuid and setgid bits on scripts are
honored. Manpage: secure_sid_scripts (5).
ProcessMgmt:
Threads
max_thread_proc Maximum number of threads that any single process can
create and have running at the same time. Manpage:
max_thread_proc (5).
ProcessMgmt:
Threads
nkthread Maximum number of kernel threads allowed on the
system at the same time. Manpage: nkthread (5).