The chatr() command is used to change and display program's
internal attributes.
Summary
of Change |
 |
Two new options +mergeseg and +I are
added to modify the shared library segment merging and dynamic instrumentation
bit of the executable respectively.
Details
of Change |
|
Option +mergeseg [enable | disable] is
added to enable or disable the shared library segment merging feature.
When enabled, all data segments of shared libraries loaded at program
startup are merged into a single block. Data segments for each dynamically loaded
library is also merged with the data segments of its depend libraries.
Merging of these segments increases run-time performance by allowing
the kernel to use larger size page table entriesOption +I
[enable | disable] allows user to enable or disable
dynamic instrumentation by caliper. If enabled, the dynamic loader
automatically invokes caliper upon program execution to collect
profile information. If disabled, no instrumentation occurs.
Impact |
|
No impact.
Compatibility |
|
No compatibility issue.
Performance |
|
No performance change.
Obsolescence |
|
Not applicable.
Documentation |
|
The chatr(1) manpage
has been updated to reflect the new options.
Machines
Affected |
|
Itanium machines running HP-UX 11i v1.6.
Printable version
