HP-UX Reference (11i v3 07/02) - 2 System Calls (vol 5)

s
sysconf(2) sysconf(2)
Maximum length of strings allowed by bc
(see bc(1)).
CCNUMA_SUPPORT
(_SC_CCNUMA_SUPPORT
)
Positive if the implementation supports multiple locality domains;
-1 oth-
erwise (see mpctl(2)).
CHILD_MAX (_SC_CHILD_MAX
)
Maximum number of simultaneous processes per user ID (see fork(2)).
CLK_TCK (_SC_CLK_TCK )
Number of clock intervals per second for times()
(see times(2)).
CLOCKS_PER_SEC
(_SC_CLOCKS_PER_SEC
)
Number of clock ticks per second for
clock() (see clock(3C)).
COLL_WEIGHTS_MAX
(_SC_COLL_WEIGHTS_MAX
)
Maximum number of weights that can be assigned to an entry of the
LC_COLLATE order keyword in a localedef input file (see
localedef(1M)).
CPU_CHIP_TYPE (_SC_CPU_CHIP_TYPE
)
Itanium-based systems: CPUID Register 3 of the Itanium-based proces-
sor identification registers. See the Itanium-based architecture definition
for this platform for the meaning of each bit.
CPU_KEYBITS1 (_SC_CPU_KEYBITS1
)
Itanium-based systems: CPUID Register 4 of the Itanium-based processor
identification registers. See the Itanium-based architecture definition for
this platform for the meaning of each bit.
PA-RISC: Processor Extensions. The availability of architecture specific
instructions is indicated by the key bit data returned by
sysconf(_SC_CPU_KEYBITS1)
. Upon successful completion, the
data returned will be the logical OR of the defined values for the features
supported.
The possible values returned by
sysconf(_SC_CPU_KEYBITS1)
and
their meanings for PA-RISC platforms are shown in the following table.
Return Value Instruction Supported
HARITH Halfword parallel add, subtract, and average
HSHIFT Halfword parallel shift-and-add
CPU_VERSION (_SC_CPU_VERSION
)
Version of CPU architecture.
The possible values of the
CPU_VERSION variable returned by
sysconf(_SC_CPU_VERSION) and their meanings are:
Value Meaning
CPU_PA_RISC1_0 HP Precision Architecture RISC Version 1.0
CPU_PA_RISC1_1 HP Precision Architecture RISC Version 1.1
CPU_PA_RISC2_0 HP Precision Architecture RISC Version 2.0
CPU_IA64_ARCHREV_0 HP Itanium-based Architecture Version 0
The CPU_IS_PA_RISC() function classifies cpuvers, a value of the
CPU_VERSION variable, as to its processor family.
DELAYTIMER_MAX (_SC_DELAYTIMER_MAX)
Maximum timer overrun count.
EXPR_NEST_MAX (_SC_EXPR_NEST_MAX)
HP-UX 11i Version 3: February 2007 − 2 − Hewlett-Packard Company 477