Concept Guide

Limits on System Usage
To restrict CPU and memory usage, Smart Scripting establishes limits on system processes for the following attributes (regardless of the
user-privilege level or scripting method).
Table 4. Limits on System Attributes
System Attributes Value Description
cputime
unlimited Maximum amount of time a process uses.
filesize
unlimited Largest le size (in bytes) that can be
created.
datasize
131,072 Maximum size (in bytes) of the data
segment for a process; this value denes
how far a program may extend its break with
the sbrk(2) system call.
stacksize
2,408 Maximum size (in bytes) of the stack
segment for a process; this value denes
how far a program’s stack segment can be
extended. The system automatically
performs stack extension.
coredumpsize
unlimited Largest size (in bytes) of a core le that can
be created.
memory use
233,244 Maximum size (in bytes) to which a
process’s resident set size may grow. This
value imposes a limit on the amount of
physical memory a process is given; if
memory is tight, the system prefers to take
memory from processes that are exceeding
their declared resident set size.
memorylocked
77,741 Maximum size (in bytes) which a process
may lock into memory using the mlock(2)
function.
maxproc
160 Maximum number of simultaneous
processes allowed for the user ID.
openfiles
64 Maximum number of open les for this
process.
Supported UNIX Utilities
Smart Scripting supports the invocation of the following UNIX utilities in the scripts you use.
UNIX Utility
Function
arp
Address resolution display and control.
awk
Pattern scanning and processing language.
basename
Return lename or directory portion of pathname.
bc
An arbitrary precision calculator language.
80 Smart Scripting