Scoped Locking 1 Scoped Locking

Example Commercial Web servers typically maintain a ‘hit count’ component that records how many times each URL is accessed by clients over a period of time. To reduce latency, a Web server process does not maintain the hit counts in a file on disk but rather in a memoryresident table. Moreover, to increase throughput, Web server processes are often multi-threaded [HS98]. Therefore, public methods in the hit count component must be serialized to prevent threads from corrupting the state of its internal table as hit counts are updated concurrently.