Answer:
Assume that a context switch takes T time. Suggest an upper bound (in terms of T) for holding a spinlock. If the spinlock is held for any longer, a mutex lock (where waiting threads are put to sleep) is a better alternative.
Explanation:
The top limit is to be twice the value of (2xT). Holding the spinlock for a longer time, it will be necessary to put the thread to sleep and get a context switch, so one process awakes the sleeping thread without the need of a second context switch.
In process synchronization, cooperating process can affect or be affected by other processes executing in the system, either directly share a logical address space, both code and data, or be allowed to share data only through files or messages, although concurrent access to shared data may result in data inconsistency. But there are several mechanisms to help the orderly execution of cooperating processes that share a logical address space, so that data consistency is kept.
Answer: label
Explanation:
Product labels are the piece of material
that are being attached to a product in order for easy identification by consumers in order to know the brand and also to know the contents.
A product's label identifies the product or brand, describes several things about the product, and promotes the brand.
Answer: consumers find it unfair for firms to increase prices after an increase in demand".
Explanation: Economists established 2 explanations of why companies do not increase their prices even if they can make higher profits.
First it was discovered that some products have the characteristic that the amount of product that a customer wants to buy can depend on the amount of the product that other people are consuming.
And then it was discovered that most people are satisfied that companies raise prices because of an increase in costs, but consider it unfair to raise prices as a result of increased demand.
Explanation:
The principle of the question is false to my own knowledge from my great great grandpa.
