The SAS 9.4
ARM interface does the following:
-
enables applications to conform
to ARM 2.0 without modification
-
supports enhanced metric capabilities
-
provides greater flexibility and
control of the output data formats by using the SAS logging facility.
Basic ARM 2.0 instrumentation does not contain user-defined metrics or correlation.
The following steps are the recommended changes to an application that contains basic
ARM instrumentation:
-
Create a SAS logging
facility -logconfigloc configuration file. For an example, see
SAS Logging Facility Configuration File. For more information about the SAS
logging facility, see
SAS Logging: Configuration and Programming Reference.
-
Specify
ARMAGENT=LOG4SAS in
a configuration file or within SAS language code.
-
Replace the %ARMINIT
and %ARMEND macros with the %PERFINIT and %PERFEND macros.
-
Replace the %ARMSTRT
and %ARMSTOP macros with the %PERFSTRT and %PERFSTOP macros.
Note: The simplified syntax of
the %PERFSTRT and %PERFSTOP macros contains the additional default
user metrics, which include memory, thread count, and disk Read and
Write statistics.
The SAS logging facility contains
transaction metrics for key events. The output destination, output format, and quantity of the
information can be defined in a file appender.
Note: In SAS 9.4, if you have an
ARM appender that is defined in the XML configuration file, you no
longer need to set the ARMAGENT=LOG4SAS system option. ARM sets ARMAGENT
to LOG4SAS internally.