I have a BeanShell sampler that has an initialisation method that reads a file into a data structure. Since a separate BeanShell interpreter is created for each thread, this work is being repeated for every thread. Two problems here:
- Wasted work -- the file only needs to be read once, and then the data structure can be shared across threads. - Synchronization -- If two threads try to read the file at the same time, they might step on each other (since I use JMeter's FileServer). I plan to do two things: - Synchronise the routine that reads the file into the data structure so it only happens once. - Put the data structure into a JMeter variable so all threads can share it. And I have a couple of questions: 1. What should I synchronize on? I really want to synchronise on the FileEntry object created by the FileServer, but I can't get hold of it. I could synchronise on the FileServer itself but that's overkill. The problem is that there's no way in BeanShell to create an appropriately global, cross-thread object to synchronise on. 2. Are JMeter variables shared across threads? I would appreciate your thoughts. Thanks Bennett. -- Bennett McElwee This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you. Please note that this communication does not designate an information system for the purposes of the Electronic Transactions Act 2002. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
