On Wednesday 03 December 2008 02:13:22 pm John Mattson wrote: > Certainly there are (expensive) products which change JES job > input priority /*PRIORITY in order to maximize thruput. However, my shop > will not pay for them, so I am trying to fiture out another way. > Changing JCL works but is labor intensive, and you have to scan > every job just to find out what jobs are currently assigned /*PRIORITY so > let's skip that as a solution. > IFF I had an Automated ops type system I could use that to change > the input priority, But I do not have one, and am unlikely to get one. > Skip that too. > Basically it would look like an easy to maintain table of 1) > JOBNAME and 2) Input Priority 3) maybe job class. Then something that, > right after the job is interpreted, will issue the proper command(s) to > set Jobclass and prioriy. Perhaps a User exit? Anybody already solved > this? > > ---------------------------------------------------------------------- > 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
I hate to throw this in, but once you figure out how to automatically change the job priorities, or even issue $T commands to alter the priority of jobs that have already been submitted, if those jobs are in WLM managed queues, altering their priority WILL NOT ALTER THE ORDER they are selected if they are in WLM managed input queues. At least that was true at z/OS 1.8. I do have a set of modifications (sorry there is no simple exit to do this) to allow $T commands to change the priority of jobs in the input queue for WLM managed queues that I would be happy to share if you need them. This little problem where JES ignores priority changes for jobs in WLM managed queues could be fixed using the qget or possibly qgot exits but that is not a simple matter. Stephen McColley ---------------------------------------------------------------------- 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
