Timothy Selivanow wrote: > On Fri, 2007-08-03 at 15:01 -0400, Robert Moskowitz wrote: > >> I need a program that will just run everything at max so I can measure >> the max power used on some systems. My 'Kill a Watt' meter should show >> up early next week. >> >> SO run that CPU at max, using all memory, and keeping the harddrive >> spinning. >> >> I can jsut do pings on the lan card for it to stay awake. >> >> I have searched here and on the net and have come back with nothing. >> >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > > Are you wanting max power for provisioning purposes? If so, the max > power on the power supply or chassis will give you absolute max. 80% of > that number is what it is rated for on a continuous basis, 100% is for > max burst. > No for UPS purposes. Actually some of these are 'portable' and I want to size an external battery. I will be running a number of tests. Max, min, 'typical'. > If you need a more accurate number (as the above is the rated Wattage, > which /will/ be different than actual usage for safety purposes), you > could run multiple of something like this: `dd if=/dev/urandom > of={somefile} bs=1024k count=1024`. Depending on your processor speed, > that won't keep the disks busy all the time which is why I suggested > multiple running at the same time. What that will do is pull 1GB worth > of random data (stresses CPU) and writes it as fast as possible to the > disk. Running a few of those in a loop should give you enough time to > see actual power draw. Shifting bits around in the memory register > probably won't add too much power draw, as it is mostly CPU and chipset > (just CPU if you are using AMD). The RAM stick is fully powered > regardless. > > Hope that helps at least a little.