The Apple Developer Connection (ADC) has posted an article titled Designing Network-friendly Applications. The article covers issues relating to developing applications that will be used on wired and wireless networks, and improving application reliability. From the article:
To optimize for performance, minimize disk access. If you hit the disk all the time, youire going to incur network traffic for every user whois using a network volume. The less you access the disk for any application data inside your bundle looking at plists and whatnot, the better. The tools available to you for optimization are Shark, fs_usage, and sc_usage. The ADC website has performance tools for system-level optimization and for file-system optimization along with information on how to use these tools to tune your application for performance.
The article is available at Appleis ADC web site.