3 ms·

Twenty years later this seems to still be good advice. Martin Thompson talks about this in his Mechanical Sympathy talk. He says the first thing he does, as a

Twenty years later this seems to still be good advice. Martin Thompson talks about this in his Mechanical Sympathy talk. He says the first thing he does, as a performance consultant, is turn off threading. Claims that's often all he needs to achieve the desired improvements... It's a good talk, I highly recommend it. https://www.infoq.com/presentations/mechanical-sympathy https://www.infoq.com/presentations/mechanical-sympathy

ttoinou 9y ago
Who creates threads just for fun ? I only use them when I really need them (in C++), so there's really no alternative for me
- YZF 9y ago
  Yep. If all you have is a blocking sys call and you want performance you gotta have threads. If you want to use more than a single core at a time for computation, you gotta have threads. [And I use the word threads loosely, you could have multiple processes as well or whatever OS primitive let's you get concurrency]. A 20 core CPU can do some things 20 times faster than a single core (multiply matrices e.g.). If you're trying to do those things and you limit yourself to a single thread - good luck!