It's a tricky question I was asked the other day... We're working on a pretty complex telephony (SIP) application with mixed C++ and PHP code with MySQL databases and several open source components. A telco engineer asked us to estimate the performance of the application (which is not ready yet).. He went like 'well, you know how many p...
Let's assume our average page weights P KBytes and we've got N visits per unit time (let's say, per hour). How could we estimate the number of servers needed to support this load with a reasonable response time? ...
Hi folks, Sometimes I get totally fooled trying to estimate an algorithm's speed with the O(x) notation, I mean, I can really point out when the order is O(n) or O(mxn), but for those that are O(lg(n)) or O(C(power n)) I think that I am missing something there... So, what are your tips and tricks for an easy estimate with a fast overloo...
We're being asked to spec out production database hardware for an ASP.NET web application that hasn't been built yet. The specs we need to determine are: Database CPU Database I/O Database RAM Here are the metrics I'm currently looking at: Estimated number of future hits to website - based on current IIS logs. Estimated worst-case...
For university I benchmark the influence of certain refactorings (e.g., inline class and replace inheritance with delegation) on performance. Although I use HotSpot 5 and 6 in interpreted mode (-Xint), the differences in performance between the refactored and the not refactored versions are very small (few milliseconds at best). Therefo...