Doesn't tallavor address this in the first sentence?
> In Windows, even with a filter limiting which directories to process, a FileSystemWatcher object has to examine each event and decide whether or not to call the event handler or let it pass without action.
Sounds like the very act of checking whether the file falls within the "agreed location" is what caught the author's attention. I can't say whether that's true, but it doesn't seem unreasonable.
> In Windows, even with a filter limiting which directories to process, a FileSystemWatcher object has to examine each event and decide whether or not to call the event handler or let it pass without action.
Sounds like the very act of checking whether the file falls within the "agreed location" is what caught the author's attention. I can't say whether that's true, but it doesn't seem unreasonable.