DescriptionSnapshot of filter algorithm (Peterson's algorithm for more than 2 processes) in progress.png
English: This table shows a snapshot of the filter algorithm (Peterson's algorithm for >2 processes) in progress with 10 processes. Bold and underlined processes are the last to enter at a particular level.
Note that depending on how processes are scheduled, there either may be no last to enter, or the thread that has in fact entered last may not yet be marked as such.
Successive changes to the table may either:
Add a process at level 0
Move a process up one level if:
It is not the last to enter at its current level OR
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