In its current implementation, SpinWait performs CPU-intensive spinning for 10 iterations before yielding. However, it doesn’t return to the caller immediately after each of those cycles: instead, it calls to spin via the CLR (and ultimately the operating system) for a set time period. This time period is initially a few tens of nanoseconds, but doubles with each iteration until the 10 iterations are up. This ensures some predictability in the total time spent in the CPU-intensive spinning phase, which the CLR and operating system can tune according to conditions. Typically, it’s in the few-tens-of-microseconds region — small, but more than the cost of a context switch.
Like all DHT anabolic steroids Anavar side effects can include acne and hair-loss but there are important things to note. Most who supplement with this steroid will not fall prey to acne if they keep their skin clean and generally only those who are predisposed to serious acne problems will have a problem. Further, one reason some run into problems is because they purchase products of an unsanitary nature; as always, buy human grade and only human grade and so many of your concerns will be eliminated. As it pertains to hair-loss, it is true, Anavar side effects can include this as can almost all DHT steroids but its not as cut and dry as you think. If any DHT derived anabolic steroid causes you to lose any hair guess what; you were going to lose it any way. DHT based hair-loss only speeds up the process, you were already going to go bald. If you are not predisposed to male pattern baldness there is no DHT steroid on earth that will cause you to lose the first hair, not even Anavar.