On Thu, Mar 01, 2007 at 11:31:14AM -0800, Davide Libenzi (davidel@xmailserver.org) wrote: > On Thu, 1 Mar 2007, Evgeniy Polyakov wrote: > > > Ingo, do you really think I will send mails with faked benchmarks? :)) > > I don't think he ever implied that. He was only suggesting that when you > post benchmarks, and even more when you make claims based on benchmarks, > you need to be extra carefull about what you measure. Otherwise the > external view that you give to others does not look good. > Kevent can be really faster than epoll, but if you post broken benchmarks > (that can be, unrealiable HTTP loaders, broken server implemenations, > etc..) and make claims based on that, the only effect that you have is to > lose your point. We seems to move far away from original topic - I never built any assumptions on top of kevent _performance_ - kevent is a logical extrapolation of the epoll, I only showed that event driven model can be fast and it outperforms threadlet one - after we changed topic we were unable to actually test threadlets in networking environment, since the only test I ran showed that threadlest do not reschedule at all, and Ingo's tests showed small number of reschedulings.
So, I only talked that kevent is superior compared to epoll because (and it is _main_ issue) of its ability to handle essentially any kind of events with very small overhead (the same as epoll has in struct file - list and spinlock) and without significant price of struct file binding to event. I did not want and do not want to hurt anyone (even Ingo, although he is against kevent :), but my opinion is that thread moved from nice discussion about threads and events with jokes and fun into quite angry word throwings, and that is too good - let's make it fun again. I'm not a native english speaker (and do not use a dictionary), so it is quite possible that some my phrases were not exactly nice, but it was unintentional (at least not very) :) Peace? > - Davide > -- Evgeniy Polyakov - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/