On Fri, 23 Jul 2004, Frank Cusack wrote: > It looks like setting a large rmem_default value doesn't necessarily > waste memory. There doesn't seem to be a fixed, pre-allocated amount of > socket receive buffer, it's just that an incoming sk_buff won't be placed > on a socket's receive queue if there isn't space "reserved" via the > per-socket rcvbuf setting. > > Is this correct? Thats right. > > If you consider a UDP application that doesn't process requests fast > enough, this does waste memory if it means packets are held in queue for > too long, processed, but then the reply dropped due to protocol timeout. > So I'm not necessarily saying that one is ok to set rmem_default very > high and all will be fine. I just want to be sure that if I set it > fairly high to accomodate one application, the mere existence of other > socket-based applications doesn't eat all available memory. > > thanks > /fc > - > : send the line "unsubscribe linux-net" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- -- You have moved the mouse. Windows must be restarted for the changes to take effect. - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
