In this video, I will give another example of the 2nd chance page replacement algorithm. It will include many of the nuances you will face and how to solve them.
This exemple is wrong. In the classic second chance algorithm after inserting new data into a frame the reference bit must be set to 1. When starting at frame 0 after inserting 4 into the frame we have to set the reference bit to 1 in this frame. There is also a pointer showing which frame is the candidate frame (victim frame) to insert data at the next page fault. So a the the beginning all the reference bits a set to 0 and the pointer is set to frame 0. Inserting 4. Setting reference bit to 1. Moving pointer to the next frame (in this case frame 1). When there is no page fault the frame where the value is locate will have it bit set to 1 if not already. The pointer will still be set to the last frame in date.
Very nice video, Casey. In column 6, should it not be a page fault when page 7 gets loaded for the first time? I noticed there is no star with page 7 :)