Hi, --- Erik Mouw <J.A.K.Mouw@xxxxxxxxxxxxxx> wrote: > A: http://en.wikipedia.org/wiki/Top_post > Q: Were do I find info about this thing called > top-posting? > A: Because it messes up the order in which people > normally read text. > Q: Why is top-posting such a bad thing? > A: Top-posting. > Q: What is the most annoying thing in e-mail? > > A: No. > Q: Should I include quotations after my reply? > > (Thanks GregKH :) > > On Tue, May 03, 2005 at 06:53:09AM -0700, prasanna > wakhare wrote: > > Please go through KURT, RTAI and RTLinux > > documentation. > > You were asked why you think you need microsecond > resolution. "Just > read the documentation" is not an answer to that > question. >> Sorry for that if you felt i was harsh in answering that. But i really mean the same thing by that answer only i need to give link which was my mistake and following is the link: http://www.ittc.ku.edu/utime/ > > > And i just want to know whether such patch is > already > > exist for 2.6 kernel as the last seen patch is for > > 2.4.18 which i am currently using. > > I just looked at www.rtai.org. Their live CD is > upgraded to Linux > 2.6.10, so that suggests there is a patch for 2.6. > I personnaly think that microsecond resolution patch still needed for even the 2.6 kernel for executing the task which needs just few microsecond and moreover many such tasks are pending and eager for there turn to come. For example i am simulating some hardware which gives response in few microseconds. Having a small timer interrupt at say every 100 microseconds is not overhead as once i calculated the latency for such small timer handler which cames 2 microseconds which is negligible. Again i dont mean to say such patch requires in linux kernel itself but for some specific applications. Or secondly for something like loading timer0 in one shot mode with the value in which the tiemr needs o be expired exactlt when application wants to execute. And take this value in statistics of calculating jiffies so executing timer handler at exactly 1ms would not get affected. And that is what KURT UTIME patch does. Prasanna __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
