Sciweavers

Share
IPCCC
1999
IEEE

Measurement, analysis and performance improvement of the Apache Web server

9 years 2 months ago
Measurement, analysis and performance improvement of the Apache Web server
Performance of Web servers is critical to the success of many corporations and organizations. However, very few results have been published that quantitatively study the server behavior and identify the performance bottlenecks. In this paper we measure and analyze the behavior of the popular Apache Web server on a uniprocessor system and a 4-CPU SMP (Symmetric Multi-Processor) system running the IBM AIX operating system. Using the AIX built-in tracing facility and a trace-analysis tool, we obtained detailed information on OS kernel events and overall system activities while running Apache driven by the SPECweb96 and the WebStone benchmarks. We found that on average, Apache spends about 20-25% of the total CPU time on user code, 35-50% on kernel system calls and 25-40% on interrupt handling. For systems with small RAM sizes, the Web server performance is limited by the disk bandwidth. For systems with reasonably large RAM sizes, the TCP/IP stack and the network interrupt handler are th...
Yiming Hu, Ashwini K. Nanda, Qing Yang
Added 03 Aug 2010
Updated 03 Aug 2010
Type Conference
Year 1999
Where IPCCC
Authors Yiming Hu, Ashwini K. Nanda, Qing Yang
Comments (0)
books