Readers-Writers: Writers Preference

    The Writer Starvation Problem In the readers preference solution, we saw how continuous readers can starve writers. The writers preference solution fixes this by giving writers priority. Key idea: When a writer is waiting, no new readers are allowed to start, even if other readers are currently reading. Real-World Need for Writer Priority Some systems need writer priority: Databases with critical updates (billing, inventory) Real-time systems (sensor updates must not be delayed) Logging systems (log writes can’t be delayed) Configuration systems (updates must propagate quickly) Leader election (state changes need priority) The Solution Go’s sync.RWMutex uses readers preference, so we need to implement writer preference manually using additional synchronization: ...

    November 18, 2025 · 7 min · Rafiul Alam