On Thu, 14 Jun 2012 11:46:52 +0530, Jake anderson wrote: >We have IEFACTRT exit routine installed in our shop which shows the Job >condition code and the CPU value.
Ok, that shows the amount of CPU time that the the job required. >Here one of our Application developer is >interested to know the value in MIPS for a Job. As Gil pointed out, it is a meaningless question. MIPS is Million Instructions Per Second. Ignoring the problems with MIPS, it is a measure of how fast the processor is. Remember "Per Second". Suppose you have a uniprocessor that is rated at 100 MIPS. Now suppose that your job used 10 seconds of CPU time. If MIPS was meaningful, your job would have executed 1000 million instructions. If the job ran for 20 seconds, it was using the processor, on average, half of the time. If you tried to quantify the "MIPS used" you would say that it used half of the 100 MIPS, or 50 MIPS. Now suppose that a job used 10 seconds of CPU time but it ran for 50 seconds. In this case, it used, on average, 20% of the processor. You might conclude that it used 20 MIPS. Looked at in another way, if your job executed 1000 million instructions in 20 seconds, it averaged 50 Million Instructions Per Second. If it executed 1000 million instructions in 50 seconds, it averaged 20 Million Instructions Per Second. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
