On 25 Jun 2010 13:41:08 -0700, in bit.listserv.ibm-main you wrote: >>Well, aren't 86.7% of all stats made up on the spot? > >It wasn't made upbn > >>And wouldn't this mean that 90+% of all code running on the system is from >>IBM or an ISV? > >Yes. >It's invoked by user code, which may grind only 5%, but the requests are >handled by non-user code. >- >Too busy driving to stop for gas! >
My take is that most of the execution time of any given unit of work such as a job step or CICS transaction is spent executing system code including access methods, CICS and DB2 supplied code. An SQL statement presumably would spend most of its time executing DB2 code. What this is saying is that for the most part optimizing COBOL programs or REXX code probably has relatively little payback compared to optimizations like VSAM buffering. My take is that if a good set of guidelines is available and used, most code and tool use will be efficient enough. Clark Morris ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
