DOCUMENT:Q191870 19-JUL-2001 [sna] TITLE :INF: Poor Response Time Returning Multiple Mainframe Records PRODUCT :Microsoft SNA Server PROD/VER:WINDOWS:1.0,4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft OLE DB Provider for AS/400 and VSAM, version 1.0, included with: - Microsoft SNA Server, version 4.0 ------------------------------------------------------------------------------- SUMMARY ======= When a consumer or client program, using ADO, asks for multiple records from an IBM OS/390 VSAM file, the response time is very slow and increases with the number of records retrieved. To improve the response time, set the CacheSize property of the ADO recordset to a reasonable value greater than one (1), which is the default. The CacheSize property is described in the ADO online documentation, which Can be installed with the Microsoft Data Access Components. Additional query words: ====================================================================== Keywords : Technology : kbAudDeveloper kbOLEDBSearch kbOLEDBProvSearch Version : WINDOWS:1.0,4.0 Issue type : kbinfo ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.