Re: [Pdns-users] multithreaded epoll_wait in PDNS
On Sun, Jun 06, 2010 at 06:40:18PM +0200, Christof Meerwald wrote: > On Tue, 1 Jun 2010 16:12:45 -0500, Naked Short-Selling wrote: > > I read your post regarding multithreaded epoll_wait behavior on lkml a > > couple of months ago: > > " > > http://lkml.org/lkml/2010/3/3/441 > > " > > My understanding is that using EPOLLET would be the right approach - and > particularly for UDP sockets it should be quite easy to implement it that > way (it might be a bit more tricky to get the locking right for TCP > sockets). Christof, "Naked", This issue has been studied and turns out not to be much of a problem under operational load - the number of spurious wakeups is actually minimal. We are probably saved by the fact that under high load, a new packet is probably available anyhow in most cases - perhaps not the one we were originally awoken for. One day, we'll address the epoll_wait optimization, but there are more pressing things on the horizon. Like DNSSEC. Thanks for your attention though! Bert ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
[Pdns-users] DNS service testers required
Greetings, I am getting close to launching DNS hosting services based on Power DNS. I am looking for some test users that can provide feedback on the DNS service and the web control panel which will be released under the GPL license in the next couple of months. All test zones will get one year of free DNS hosting. If you are interested, please send me an e-mail and I will forward you the details. Regards, Jivko ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
Re: [Pdns-users] multithreaded epoll_wait in PDNS
On Tue, 1 Jun 2010 16:12:45 -0500, Naked Short-Selling wrote: > I read your post regarding multithreaded epoll_wait behavior on lkml a > couple of months ago: > " > http://lkml.org/lkml/2010/3/3/441 > " My understanding is that using EPOLLET would be the right approach - and particularly for UDP sockets it should be quite easy to implement it that way (it might be a bit more tricky to get the locking right for TCP sockets). Christof -- http://cmeerw.org sip:cmeerw at cmeerw.org mailto:cmeerw at cmeerw.org xmpp:cmeerw at cmeerw.org ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
