Belady's Anomaly in Page Replacement Algorithms - GeeksforGeeks

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Belady's Anomaly in Page Replacement Algorithms - GeeksforGeeks Courses Tutorials Interview Prep OS Tutorial Interview Questions Quizzes Notes System Call Paging Virtual Memory Deadlock Handling DBMS Computer Network Digital Electronics TOC Belady's Anomaly in Page Replacement Algorithms Last Updated : 15 Apr, 2026 Belady’s Anomaly is a phenomenon in operating systems where increasing the number of page frames can unexpectedly increase the number of page faults in certain page replacement algorithms. Normally, more frames should reduce page faults, but in some cases, the opposite happens, lead

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