Hi , I am developing an application , where I am using epoll LT call for event handling . The server must be able to scale upto 20000 active socket connections . Is there any thumb-rule for deciding on the epoll event buffer size . Can I optimise the buffer size . I know that it depends on the nature of the application , the network bandwidth et al . But can anyone by experience suggest what the buffer size should be . Thanks, Simha. - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html