On 24 December 2016 at 00:10, Ben Caradoc-Davies <b...@transient.nz> wrote:
> On 24/12/16 09:45, Michael Fothergill wrote: > >> Suggestions on performance testing the FX 8350 chip on this install are >> welcome. >> > > For an open source multithreaded CPU load with a handy benchmark mode, > install povray, then run: > > povray -benchmark > > and compare the resulting time in seconds with: > https://openbenchmarking.org/showdown/pts/povray > > (FX-8350 listed as 812 seconds.) > Many thanks for this advice. I installed povray and gkrell and then ran povray -benchmark as you suggested. I also checked the cpu temperature as well as the cpu core activity. As the test ran I noticed two things: 1. All 8 cpu cores ran simultaneously at 100% capacity. 2. The cpu temperature rose gradually until the benchmark was about 85% complete - by then the temperature exceeded 84C and the cpu automatically cut out and the pc shut itself down. When I bought the motherboard and cpu I got the retailer to switch the standard stock cooler for an Arctic Freezer 13 model. They installed it for me and I fitted the motherboard into the PC cabinet with the cooler. Concerning the Arctic Freezer 13 cooler, I would have thought it should be good enough to cool this cpu adequately in this situation, but I am open to comments and suggestions on this. I would have thought the cooler should work adequately if the following conditions were met in my case: 1. The cooler was correctly installed and attached to the motherboard and cpu. 2. Adequate thermal contact between the heat sink and the cpu was achieved using e.g. properly swabbed and sautéed thermal paste. 3. The fan is turned on an dynamically controlled to respond to temperature changes vigorously as needed in this test case. Or it would fail. I could open the cab door and check by eye that the fan does actually start whirring vigorously when the temperature increases in the povray test. I think that gkrell should probably output the fan speeds continuously as well temp and cpu load etc. However there is one other mysterious factor here. The Arctic Freezer 13 cooler apparently has 9 different fan settings. I have tried googling around but I don't know how to change the fan settings on it....... This seems to be an enigma. Does anyone know if it would be possible to change the fan speed settings in Debian in some way? Or would I have to manually adjust them in the cabinet after shutting the off? Comments appreciated on this. Regards MIchael Fothergill > > Your cpuinfo suggests that all 8 processors are detected. The "cpu cores" > might refer to the four "modules" of this package, each with two integer > and one floating point unit. POV-Ray is FPU intensive so expect quad-core > performance. > > Kind regards, > > -- > Ben Caradoc-Davies <b...@transient.nz> > Director > Transient Software Limited <http://transient.nz/> > New Zealand >
