2 posts tagged with "Operating Systems"

A very common misconception in Operating Systems is that every page fault means the OS must access the disk.
That is not always true.

A page fault simply means that the required page is not usable in the current context.
This can happen for multiple reasons.

In many cases, the page is already present in main memory, but:

A very common misunderstanding in C and C++ is assuming that the volatile keyword makes code thread-safe.
It does not.....