Sorry for double post... > -----Original Message----- > From: Eugene Surovegin [mailto:ebs at ebshome.net] > Sent: Tuesday, August 09, 2005 11:41 > It's not small drift (I usually have clock accuracy within +-50ppm), > but still is much less than maximum 1024ppm NTPD can deal with.
My bigger problem with the walltime is that time_nsec should have been 1000000, not 999848 to begin with. If it had been, I would probably never even have noticed it. The thing is that that value is set based on a value I cannot find any reference as how was chosen. Looks to be a leftover when porting PPC fron i386 once upon a time. time_nsec basically gets is value (via some macros) from CLOCK_TICK_RATE, which is defined in asm-ppc/timex.h to be 1193180 In my opinion, time_nsec should have been calculated based on the actual clock input rate to begin with (like in calibrate_decrementer()).