* Thomas Graf <[EMAIL PROTECTED]> 2007-06-18 12:32 > * Miklos Szeredi <[EMAIL PROTECTED]> 2007-06-18 11:44 > > Garbage collection only ever happens, if the app is sending AF_UNIX > > sockets over AF_UNIX sockets. Which is a rather rare case. And which > > is basically why this bug went unnoticed for so long. > > > > So my second patch only affects the performance of _exactly_ those > > apps which might well be bitten by the bug itself. > > That's not entirely the truth. It affects all applications using > AF_UNIX sockets while file descriptors are being transfered. I > agree that the performance impact is not severe on most systems > but if file descriptors are being transfered continously by just > a single application it can become rather severe.
Also think of the scenario where an application, deliberately or not, begins a file descriptor tranfser using sendmsg() and the receiving part never invokes recvmsg() to decrement the inflight counters again. Every unix socket that gets closed would result in a gc call locking all sockets. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
