charfi asma wrote: > > suppose that we know the WCET ( worst case execution time) related to any > function of our program. > can we pass this parameter to GCC to take this WCET into acount and never > exceed it (optimize the execution time of this function in a way that it > can not exceed WCET parameter). > Hi, If the number you have truly is the WCET, by definition your function will never exceed this. However, without tool support to determine WCET, I know it's difficult to get this value. to check current executed time against an estimate of WCET, you need a measurement of time spent in the current thread (excluding time in interrupts and doing context switched) - in other words, execution time. If you are using an RTOS, it may be able to provide this information for you. I believe that Windows (yes, I know it's not an RTOS) has an API that gives time spent in a thread - downside is that it has low resolution and high execution time overhead. Hope this helps Andrew -- View this message in context: http://old.nabble.com/WCET-and-GCC-tp28267105p28287619.html Sent from the gcc - Help mailing list archive at Nabble.com.
