Problem Note 41115: Loading a large SAS data file into memory can cause macro slowdown
Using a SASFILE Load command to move a large SAS data file into machine memory causes macro functions to slow down. Unloading the Data file from memory returns the memory to the available pool, but the macro functions continue to perform slowly.
Operating System and Release Information
| SAS System | Base SAS | z/OS | 9 TS M0 | 9.3 TS1M0 |
| Microsoft® Windows® for 64-Bit Itanium-based Systems | 9 TS M0 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Datacenter 64-bit Edition | 9 TS M0 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Enterprise 64-bit Edition | 9 TS M0 | 9.3 TS1M0 |
| Microsoft Windows 2000 Advanced Server | 9 TS M0 | |
| Microsoft Windows 2000 Datacenter Server | 9 TS M0 | |
| Microsoft Windows 2000 Server | 9 TS M0 | |
| Microsoft Windows 2000 Professional | 9 TS M0 | |
| Microsoft Windows NT Workstation | 9 TS M0 | |
| Microsoft Windows Server 2003 Datacenter Edition | 9 TS M0 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Enterprise Edition | 9 TS M0 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Standard Edition | 9 TS M0 | 9.3 TS1M0 |
| Microsoft Windows XP Professional | 9 TS M0 | 9.3 TS1M0 |
| 64-bit Enabled AIX | 9 TS M0 | 9.3 TS1M0 |
| 64-bit Enabled HP-UX | 9 TS M0 | 9.3 TS1M0 |
| 64-bit Enabled Solaris | 9 TS M0 | 9.3 TS1M0 |
| HP-UX IPF | 9 TS M0 | 9.3 TS1M0 |
| Linux | 9 TS M0 | 9.3 TS1M0 |
| OpenVMS Alpha | 9 TS M0 | 9.3 TS1M0 |
| Tru64 UNIX | 9 TS M0 | 9.3 TS1M0 |
*
For software releases that are not yet generally available, the Fixed
Release is the software release in which the problem is planned to be
fixed.
If loading a very large SAS data file, relative to available machine memory, in to memory with a SASFILE statement, certain macro functions can be negatively impacted. Clearing the data file from memory does not solve the problem.
| Type: | Problem Note |
| Priority: | high |
| Topic: | SAS Reference ==> Macro
|
| Date Modified: | 2010-10-04 13:47:18 |
| Date Created: | 2010-10-01 19:20:44 |
