Dear Tharindu, There is lot of literature available on net for real-time and linux real-time. You may want to read them first before you start on your project. Also pay attention to CONFIG_RT linux real-time enhancements. After reading them you yourself will be able to answer all these questions and we all are also looking forward for your analysis/summary Thanks On Wed, 2006-09-20 at 12:19 +0530, Tharindu Rukshan Bamunuarachchi wrote: > Hi Mulyadi/All, > > On 9/20/06, Mulyadi Santosa <mulyadi.santosa@xxxxxxxxx> wrote: > > Hi Tharindu... > > > > I support what others said. IMHO, what you need is a combination of the > > following recipes: > > 1. A high HZ, but not too high. Once again, this is truly trial and > > error work. > I am not trying to raise it too much. But about 1500 ?? > > > > 2. Real time priority. SCHED_FIFO and SCHED_RR are the priority you're > > looking for, but for that you need real time kernel patches, something > > like -rt from Ingo Molnar tree > > What is the best out of SCHED_FIFO and SCHED_RR? > > Any difference in RR and FIFO? > > > > 3. You said you used CPU binding in Solaris, you can do the similar > > thing in Linux. Read more about CPU affinity and CPU taskset, I believe > > it is included in kernel source package under "Documentation" > > directory. > > Will this keep other process away from particualr CPU?? > > > > 4. Or perhaps you need special crafted Linux kernel such as RTAI or > > RTLinux? > > > > 5. IMHO, blocking or not, that's not the primary problem. Even if your > > application is non blocking at all, but it is multithreaded, context > > switching between threads still happen. So, what you need here is a > > careful management of: thread creation and handling, anticipate most > > taken branch and optimize it, reduce or avoid memory thrashing at all > > cost. You might also need something like AIO (Async I/O) ... > > > You mean libaio ?? > > Are there any advantage if I use libaio. > > Currently we are not using libaio. > > > Those are my opinions so far. Good luck and wish you a big success! > > > > Thank you very much! > > regards, > > > > Mulyadi. > > > > > > > > > Thankx for the help > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
