&   Tuning and Performance Comparisons?   The Question is:    - We have a Production and Test Environment for . products that we run and have the same process+ which we run in both environments. It takes - substantially longer to run in the Production $ Environment than it does in the Test Environment.   , Would like to know what the possible reasons* are for the differences in the run times?.   
 Thank You.  The Answer is :   H   Please contact the support center directly, as the OpenVMS Wizard mustH   infer that you wish assistance in determining the baseline applicationK   and system performance details, and in subsequently comparing the results I   of the efforts across the two (or more) system configurations involved.    L   With the establishment of a baseline of application and system performanceI   for each system or each cluster, you can then make comparisions -- much K   like tuning an OpenVMS system or tuning an application, you must identify K   the particular performance constraints currently limiting the application    performance.   H   The range of possible causes for performance differences between theseH   two systems or two cluster configurations is well beyond what could beL   discussed in any reply here, as it could easily involve system performanceF   differences, system tuning differences, I/O performance, applicationB   differences, firmware, quota settings, application and/or systemF   contention, differences in numbers of records, differences in recordH   organization or fragmentation within files, deleted records within RMSH   files, disk or file fragmentation, or any combination of a vast numberB   of other potential performance-relevent hardware and/or software   differences.   F   If you wish to research this yourself, please review the performanceF   manual in the OpenVMS manual set, as well as information relevent toD   the language and/or file system and/or database and/or third-partyD   application and/or network stack and/or other environment-specific   considerations.    G   Again, a discussion of potential causes of performance differences is E   far too open-ended for a discussion here in Ask The Wizard.  Please ?   contact the support center for tuning and related assistance.    F   For generic programming information, please see topic (1661).  OtherE   system, application, and RMS file tuning discussions include (292), I   (1676), (2259), (2618), (2764), (2794), (3345), (3598), (3948), (4341), E   (4365), (6718), (6886), (7425), (7557), (7757), (8409), and (9020). I   For some BACKUP discussions, please see (6690), (7556), (7997), (8065), C   and (8452).  Other tuning-related discussions are also available.       /  Answer written or last revised on  2-JUN-2004  