Messages in this thread | | | From | npunmia@hss ... | Date | Mon, 9 Apr 2001 17:15:53 +0530 | Subject | 1.6666.... ms interrupts needed!! |
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Hi.
We are simulating air interface of GPRS on LAN. A TDMA(time division multiple access) frame duration is 40ms. Each TDMA frame consists of 24 timeslots. Each timeslot is of 40/24 ms (i.e 1.66666.......ms) . To know what current timeslot it is, we need a timer interrupt after every 1.6666... ms . Since we are implementing this on LAN, minor jitters once in a while can be tolerated (say 0.2 ms more or less once a while would be OK). As of now, we are modifying the HZ value in param.h to 600. This gives us a CPU tick of 1.6666.... ms. (i.e 1/600sec). I want to know if it would affect the perfomance of the CPU. Is there a better way to achieve the granularity of 1.666...ms . Would the UTIME patch be a better way from performance or any other point of view than this method?
With Regards, Niraj Punmia
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