HP-UX Reference (11i v3 07/02) - 5 Miscellaneous Topics (vol 9)

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Aries(5)
Itanium(R)-based Systems Only
Aries(5)
Default 16384 KB (16 MB) 16384 KB (16 MB)
Max 16384 KB (16 MB) 16384 KB (16 MB)
Min 1024 KB ( 1 MB) 1024 KB ( 1 MB)
Note: It is recommended that you set this parameter value at default or maximum value.
A smaller value for this parameter will cause an increased frequency of Aries translated
code buffer flushes due to buffer full conditions. This may result in poor performance for
PA-RISC application.
In future Aries releases it may be possible to increase the maximum value of this parame-
ter greater than 16 MB.
Though 64-bit Aries allows a maximum value of 16 MB for this parameter, it actually
reserves 64 MB. The currently unused 48 MB space is for larger translation code buffers in
future.
-core_format version_specifier
Specifies the core file format for Aries-generated core files. By default Aries generates core
file with large utsname structure. Use this option if you want Aries to generate PA-RISC
application core file in format other than the default.
The valid values of this parameter are -
v1 (old core file format),
v2 (new core file format)
The default value of this parameter is v2.
-corepid
Causes the process id (See getpid(2)) to be appended to the core file name to which Aries
writes PA-RISC application’s core file.
If this option is turned On, the core file name will be core.PA-
RISC_application_name.PID .
The default value of this parameter is Off.
-heap_ssz size
Specifies the maximum size of Aries heap (in kbytes). The Aries heap is used to allocate
internal Aries data structures and for creating Aries threads for emulation of PA-RISC
application threads.
The Aries heap is divided into two parts - the first part is used as an Aries private heap
whose size is determined by the Aries parameter -ap_heap_ssz . Remaining area from
the Aries heap is used to allocate memory for new threads.
Value 32-bit Aries 64-bit Aries
Default 22528 KB (22 MB) 131072 KB (128 MB)
Max 22528 KB (22 MB) 131072 KB (128 MB)
Min 8192 KB ( 8 MB) 8192 KB ( 8 MB)
The values above are shown with the default values of kernel tunable parameters
pa_maxssiz_32bit and pa_maxssiz_64bit for 32-bit Aries and 64-bit Aries
respectively.
With increased values of the kernel tunable parameters
pa_maxssiz_32bit and
pa_maxssiz_64bit for 32-bit Aries and 64-bit Aries respectively, the maximum value
of the Aries heap is computed as follows.
• 32-bit Aries heap_ssz = pa_maxssiz_32bit - ssz - ccsz - 10 MB
• 64-bit Aries heap_ssz = pa_maxssiz_64bit - ssz - ccsz - 33 MB
-issz size
Specifies the size of initial allocated stack (in kbytes) for PA-RISC application.
Value 32-bit Aries 64-bit Aries
68 Hewlett-Packard Company − 5 − HP-UX 11i Version 3: February 2007