When running a DATA step with many missing values on the HP-UX Itanium platform, you may see an extreme difference in running time when compared with the same process run on the HP-UX PA-RISC platform.

Development has determined that HP-UX PA-RISC uses a binary search method to identify which statement encountered the missing value, whereas HP-UX Itanium uses a linear search method.

Further investigation revealed that the Linux Itanium and Windows 64-bit platforms also use the linear search method.

Select the Hot Fix tab in this note to access the hot fix for this issue.

Operating System and Release Information

A fix for SAS 9.1.3 (9.1 TS1M3) for this issue is available at:

A fix for SAS 9.1.3 (9.1 TS1M3) with Asian Language Support (DBCS) for this issue is available at: