Vantage is designed to import everything from your log files, but if you are not interested in looking all of the fields available, then this could be slowing down your reports. […]
Using Date Modifiers in file masks are a great way to increase the speed of your imports as they remove all the logs you don’t care about from the import list. If you're using WebSpy Vantage, you are probably interested in filtering your log file imports by date (only import files from the month of June for example). The obvious way to do this is to specify a date filter using the filters page in the Input Wizard. The problem is Vantage will still check every record in every log file being imported to see if it matches the date filter. If you have months or years worth of logs in the folder being imported, that's a lot of data that Vantage has to pointlessly sift through. The good news is, if your log files contain the date in their file name, then you can use file masks to instruct Vantage to never touch these unwanted files.
We've been doing some work of late to make Vantage take advantage of multi-cpu and multi-core processors. It looks like we've improved the performance of importing more than one log file by around 50%, and the most common reporting scenarios by around 30%. Before we release this build into the wild, I'd like to give it as much field testing as possible. If you are interested in obtaining a copy of this build...