Abstract
We describe a Webmail server that runs on a bare PC without an operating system (OS) or kernel, and give details of its architecture, design, and implementation. We also present the results of experiments conducted in a test LAN environment to compare performance of the bare PC Webmail server with conventional Webmail servers Atmail and Mailtraq running on Linux and Windows respectively. Performance is evaluated by measuring the processing time for login requests; inbox requests with a varying number of emails; and composing or retrieving email messages and sending attachments of various sizes. We also measure the throughput for various sizes; and, under stress conditions, the processing and response times with a varying number of connections, and the total and average processing times for the POST command with a varying number of users. The results show that the performance of the bare PC Webmail server is significantly better than that of the OS-based servers. The bare PC Webmail server is an alternative to conventional Webmail systems, and its architecture and design features could be used as a basis for developing future high-performance systems.
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