3 ms·

We were also wondering about existing temperature conditions. For example, I might be running some super benchmark that pegs the core temperature high. What hap

We were also wondering about existing temperature conditions. For example, I might be running some super benchmark that pegs the core temperature high. What happens when Siri turns on? If it still shuts down the fan thats bad. I could potentially keep prompting Siri (to turn off the fan) and drive the temperature a bit higher.

DigitalJack 10y ago
I don't have an app for monitoring cpu temps right now, and don't know if there is a CLI way to do it. I was able to keep the fan off for probably a minute before I stopped. I am interested to find out if intel's cpu throttling kicked in. edit: installed Intel Power Gadget. with 4 cores pegged (4 actual cores), the CPU was turbo-boosted (3.0GHz on my laptop). As I prevented the fans from running via Siri, the cpu throttled back to normal rated speed. Temperature varied by a few degrees C hovering around 99C. I did this for approximately a minute or so. It didn't go below the rated speed (2.5GHz on my laptop). edit2: I did it again with 4 cores pegged and 4 HT cores pegged. It didn't throttle below 2.5, but I did see that the "yes" processes were throttled back. when I glanced before stopping, they were all at 80% instead of 95+%
- burke 10y ago
  There's no default utility for this. There's some sysctl values for the CPU and the GPU but they don't actually give you a temperature. There's an API for this in IOKit. Easiest way I've found to get at it on the CLI is: gem install istats istats cpu temp | awk '{gsub(/[^0-9\.]/,"",$3);print $3}'
  - DigitalJack 10y ago
    I installed Intel Power Gadget. It's pretty nice actually, no options to configure but it's pretty useful information.
  - grkvlt 10y ago
    Just FYI, I had to do the following: $ gem install istats ERROR: Could not find a valid gem 'istats' (>= 0) in any repository ERROR: Possible alternatives: iStats $ gem install iStats Fetching: sparkr-0.4.1.gem (100%) ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory. $ sudo gem install iStats Fetching: sparkr-0.4.1.gem (100%) Successfully installed sparkr-0.4.1 [...] This could take a while... Then, I discovered it uses sparklines for output: $ istats cpu CPU temp: 60.625°C Which is pretty cool. EDIT: the sparkline doesn't show here, but it's a little bar-chart histogram

DigitalJack 10y ago

I don't have an app for monitoring cpu temps right now, and don't know if there is a CLI way to do it. I was able to keep the fan off for probably a minute before I stopped. I am interested to find out if intel's cpu throttling kicked in. edit: installed Intel Power Gadget. with 4 cores pegged (4 actual cores), the CPU was turbo-boosted (3.0GHz on my laptop). As I prevented the fans from running via Siri, the cpu throttled back to normal rated speed. Temperature varied by a few degrees C hovering around 99C. I did this for approximately a minute or so. It didn't go below the rated speed (2.5GHz on my laptop). edit2: I did it again with 4 cores pegged and 4 HT cores pegged. It didn't throttle below 2.5, but I did see that the "yes" processes were throttled back. when I glanced before stopping, they were all at 80% instead of 95+%

burke 10y ago
There's no default utility for this. There's some sysctl values for the CPU and the GPU but they don't actually give you a temperature. There's an API for this in IOKit. Easiest way I've found to get at it on the CLI is: gem install istats istats cpu temp | awk '{gsub(/[^0-9\.]/,"",$3);print $3}'
- DigitalJack 10y ago
  I installed Intel Power Gadget. It's pretty nice actually, no options to configure but it's pretty useful information.
- grkvlt 10y ago
  Just FYI, I had to do the following: $ gem install istats ERROR: Could not find a valid gem 'istats' (>= 0) in any repository ERROR: Possible alternatives: iStats $ gem install iStats Fetching: sparkr-0.4.1.gem (100%) ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory. $ sudo gem install iStats Fetching: sparkr-0.4.1.gem (100%) Successfully installed sparkr-0.4.1 [...] This could take a while... Then, I discovered it uses sparklines for output: $ istats cpu CPU temp: 60.625°C Which is pretty cool. EDIT: the sparkline doesn't show here, but it's a little bar-chart histogram