Configurable Kernel Parameters for Streams
The following configurable kernel parameters are used for managing
resources used by character-mode I/O streams:
NSTRBLKSCHED - This parameter is for factory use only
and should not be changed unless directed otherwise by
authorized HP support personnel. No documentation is
provided for this parameter. Inappropriate use of this
parameter could result in system lock-up or other
malfunctions.
NSTREVENT
- Maximum number of outstanding streams bufcalls that are
allowed to exist at any given time on the system. This
number should be equal to or greater than the maximum
bufcalls that can be generated by the combined total
modules pushed onto any given stream, and serves to limit
run-away bufcalls.
NSTRPUSH - Maximum
number of streams modules that are allowed to exist in any
single stream at any given time on the system. This
provides a mechanism for preventing a software defect from
attempting to push too many modules onto a stream, but it
is not intended as adequate protection against malicious
use of streams.
NSTRSCHED
- Maximum number of streams scheduler daemons that are
allowed to run at any given time on the system. This value
is related to the number of processors installed in the
system.
STRCTLSZ
- Maximum number of control bytes allowed in the control
portion of any streams message on the system.
STRMSGSZ
- Maximum number of bytes that can be placed in the data
portion of any streams message on the system.
nstrpty
- System-wide maximum number of streams-based PTYs that
are allowed on the system.
streampipes
- Force All Pipes to be Streams-Based.
Additional Information