zequence | Still working on feature definition organizing. Will begin discussions on many topics on the mail list as soons as I have gathered what we already have | 13:49 |
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zequence | This time around I will put a lot of emphasis on feature specs, and make sure we all agree on things before we move forward | 13:50 |
OvenWerk1 | Anyone know if it is normal on a multicore cpu for one core to run much cooler than the rest? My core 0 is 5C less than all the others and less than the the overall cpu temp too. | 21:10 |
OvenWerk1 | Or should I assume that this is an error in the temperature probe | 21:10 |
OvenWerk1 | Speaking of temperature in cpus... I have been playing around with setting different speeds on the cpu and running the core full out (100%) to see where the temperature falls. | 21:12 |
OvenWerk1 | This is mostly to see if it matters if I use "performance" mode or need to use userspace at some slower speed to keep heat down. It appears not. My CPU is a 3.2Ghz top end (without boost turned on and as the OS doesn't control speed changes with boost on... it is off) | 21:15 |
OvenWerk1 | It actually runs a little cooler at 3.2G than at 3.0G. I have also found that running cooler cores faster than hotter ones does not ballance the cpu temperature, but instead makes the hotter ones (at lower speeds) even hotter. | 21:17 |
OvenWerk1 | Basically, what I have found is that all cores at one speed is cooler than having some cores going slower. So "performance" mode will run cooler than "ondemand" mode in some cases. | 21:21 |
OvenWerk1 | holstein: ^^^ this is with regards to what we were talking about before. | 21:22 |
OvenWerk1 | I think we should allow the user to choose to run their machine in "performance mode" from boot if they wish. I have heard it makes a difference with video work as well. | 21:24 |
OvenWerk1 | I think for a production computer, performance/lowlatency is more important than energy savings for our uses. | 21:25 |
OvenWerk1 | The settings for CPUgovernor are (still) in init.d so we should have no problem adding a custom file to do this. It _should_ still continue to work after ubuntu has switched to systemd. which seems to be on the way. | 21:27 |
OvenWerk1 | zequence: ^^^ | 21:28 |
* OvenWerk1 is off to get son from school | 21:28 |
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