• 0 Posts
  • 33 Comments
Joined 1 year ago
cake
Cake day: June 16th, 2023

help-circle



  • Common misuse of words. Decimate means reduce by 1/10 not almost completely destroy. Exponential growth. The variable has to be in the exponent if it’s a constant exponent that is polynomial growth. Gaslighting isn’t just lying. It’s making someone belive that they can’t trust their own memories or experiences so they believe you despite evidence to the contrary.







  • I grew up near an area where a large number high net worth people. For example as a kid I thought Lamborghini was a common car because I saw them all the time.

    In my experience lots of money brings out your true self and let’s you act the way you want. So if you are inclined to be self centered and an asshole you can be a massive asshole. You can also be generous and kind.

    Most rich people are pretty normal. However the normal ones do try to not make it known that they are rich. So you often don’t notice the normal rich people.

    It’s also hard to tell the difference between a person who lives on a 200k a year income and a person with a double digit millions net worth.

    I had a friend as a teen. I invited him to go diving with me as he had never been. He showed up with a 20k wetsuite.


  • Pretty specific use case. A normal OS handleds time slicing and core assignment for processes and uses it’s judgement for that. So at any time your process can be suspended and you don’t know when you get your next time slice.

    Same with when you make wait calls. You might say wait 100ms but it may be much longer before your process gets to run again.

    In a real time OS if you have real time priority the OS will suspend anything else including it self to give you the time you request. It also won’t suspend you no matter how long you use the core.

    So if you need to control a process with extreme precision like a chemical manufacturing process, medical device, or flying a rocket where being 10ms late means failure they are required.

    However with great power comes great responsibility. You need to make sure your code calls sleep frequently enough that other tasks have time to run. Including things like file io or the gui.







  • It was something around 40 TB X2 . We were doing a terrain analysis of the entire Earth. Every morning for 25 days I would install two fresh drives in the cluster doing the data crunching and migrate the filled drives to our file server rack.

    The drives were about 80% full and our primary server was mirrored to two other 50 drive servers. At the end of the month the two servers were then shipped to customer locations.