Himanshu Jha had a question about hangs while building the cross function DB. Building the cross function DB used to hang my system for half an hour but I kept tweaking it so now it's barely noticeable. I have a quad core with 32GB of RAM. The problem is that Smatch is reading from the warns.txt file and writing to smatch_db.sqlite file as fast as possible. Both files are around 15-20GB. This IO pattern is very hard on the default Linux IO schedulers. The BFQ scheduler is designed to fix these hangs, so your best bet is to try that. https://unix.stackexchange.com/questions/375600/how-to-enable-and-use-the-bfq-scheduler regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe smatch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
