Arjan van de Ven wrote:
hmm. I wonder if a slightly different approach (based on the __slow) idea would make sense 1) Use -ffunction-sections option from gcc to put each function in it's own section 2) Use readprofile/oprofile data to collect an (external to the code) list of hot/cold functions (we can put a default list in the kernel source somewhere and allow people to measure their own if they want) 3) Use this list to make a linker script to order the functions
Somebody recently implemented something similar; see http://www.bclennox.com/ldreorder/ It used valgrind rather than oprofile. - Dan -- Trying to get a job as a c++ developer? See http://kegel.com/academy/getting-hired.html - 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/