When troubleshooting data performance problems, IO problems, or simple library connectivity, I use a simple snippet of code to push the data storage to the limits. It is useful because it stresses the data storage component, whether it be a SAS dataset on local file storage or an external database like Oracle, and it provides useful performance metrics. To make it even better, since this is a SAS Macro it can easily be called multiple times for different libraries by setting the 2 parameters in the %BENCHMARK() macro. Data Benchmark Macro Code The following code will take the CLASS dataset from the SASHELP library and continually append a specified number of iterations. Be sure to include the OPTIONS statement to get the vital statistics in the log. Output This is the output produced when the FULLSTIMER option is set. These statistics were produced on my laptop with a solid state drive. NOTE: DATA statement used (Total process time): real time 15.08 seconds user cpu time 13.55 seconds system cpu time 1.45 seconds memory 414561.92k OS Memory 439844.00k Timestamp 08/01/2012 11:00:11 PM How fast can you run this code? Remember to set the [...]
The post SAS Code: Simple Macro to Benchmark Data Performance appeared first on Business Intelligence Notes for SAS® BI Users. Written by Steve Overton.