Contents • • • • • • • • • • • Performance [ ] Read the following statements: • All HP-UX systems, and all computer no matter what fads, looks or CPU arquitecture bought by HP customer perform a computation task were source data is transformed to data. Most likely both the source and the transformed data will require temporary or permanent storage for current or future retrivial through any available presentation media • Performance is defined and measure by the amount of data that can be transformed and possiblly stored in a time frame by the resources assigned to the task by a given system. Installer Imprimante Hp Officejet G55 Parts. Sears Garage Door Opener Manual 1 2 Hp there. Several if not hundreds thousands of independent data transformation happens concurrently Compare those statements with the following HP-UX problem descriptions: • 'The system has a performance problem!' • 'The users sessions hangs intermittently!' • 'The application is taking three times longer to complete the task' • 'Why is my System kernel user processes so high' • 'I have 128 GB of memory, but my database suddenly closes with 'cannot malloc' error messages' If you feel that you don't know where to start to offer a proper answer to the customer and the 'It depends' phrase immediately pops up, not wonder.

The questions are incorrectly stated, you need knowledge and practice to tackle even a baseline performance analysis and even those cases where strong performance lingo is used, may have little relation to performance best practices. The panic bad news! Is that you as L1 engineer are fully responsable to: • Identified performance cases • Frame those cases • Perform data collection and, • Analysis between the contractual limits of the support contract. The good news is that HP-UX L2 WTEC engineers are here to help you to attack complex problems or identified product defects in the product that require the development of fixes. Performance outline [ ] The following is the HP Education 'HP-UX performance and tuning' course content. This constitute an excellent overview of the common topics that may arise during a perforance case analysis and is and excellent starting point to determinate what topics you need to handle. Export UNIX95 = export PATH =/usr/sbin:/usr/bin # date >>/tmp/ps.out; ps -Hef >>/tmp/ps.out & date >>/tmp/sar.out; sar 1 5 >>/tmp/sar.out & date >>/tmp/sard.out; sar -d 1 5 >>/tmp/sard.out & date >>/tmp/sarb.out; sar -b 1 5 >>/tmp/sarb.out & date >>/tmp/sarc.out; sar -c 1 5 >>/tmp/sarc.out & date >>/tmp/sarw.out; sar -w 1 5 >>/tmp/sarw.out & date >>/tmp/swapinfo.out; swapinfo -tam >>/tmp/swapinfo.out & date >>/tmp/vmstat.out; vmstat -n 1 5 >>/tmp/vmstat.out & To run the script in a while loop, use the following command.