Web Proxy Caching Model Web Servers Aggregate Proxy Workload - PowerPoint PPT Presentation

Aug 04, 2023 •260 likes •303 views

Web Proxy Caching Model Web Servers Aggregate Proxy Workload server Web Clients Factors and Levels Cache size Cache Replacement Policy Recency-based LRU Frequency-based LFU-Aging Size-based GD-Size Workload

Web Proxy Caching Model Web Servers Aggregate Proxy Workload server Web Clients
Factors and Levels • Cache size • Cache Replacement Policy – Recency-based LRU – Frequency-based LFU-Aging – Size-based GD-Size • Workload Characteristics – One-timers, Zipf slope, tail index, correlation, temporal locality model
Performance Metrics • Document Hit Ratio (DHR) – What percentage of the documents requested by the clients are satisfied directly by the proxy, without having to obtain from the Web server? • Byte Hit Ratio (BHR) – What percentage of the bytes requested by the clients are satisfied directly by the proxy, without having to obtain from the Web server?

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