Danny Mayer wrote: > David J Taylor wrote: [] >> Thanks for your reply. Perhaps my recollection is at fault here, >> but I recall that NTP on Windows uses some interpolation technique >> to overcome timer granularity, and that the interpolation used a CPU >> counter. > > We are intending to implement that but we haven't done so yet.
Thanks for your reply, Danny. Ah, my mistake - I was sure it was already included! [] > There are a couple of boot switches you can try and see if that makes > a difference. I'm not really familiar with Vista and the switch might > not help on Vista. You should also consider that it may be doing > things in a different way which could cause additional interrupts so > that the clock tick doesn't update in a regular fashion. The > possibilities are endless. Time for a support call to Microsoft? I > know you don't have 8 hours to remain on hold. I was trying to switch off one core in the BIOS but I don't seem to have that choice. The boot is rather different now, and no longer is there a boot.ini to edit. What documentation I can find mentions "number of processors" and not "number of cores". I'm unsure if this is significant or not. > There is one other thing that needs to be considered. This is a 64-bit > system> In that case it's possible that the code may need to be > changed to deal with it properly. For example using the VS 2005 > compiler I have found that it uses a 64-bit integer instead of 32-bit > integer for time_t. This could affect the quality of the results, > it's hard to say. The version I'm testing is the 32-bit version of Vista, albeit on a 64-bit capable CPU. 64-bit can be a pain though for subtle errors, I appreciate. I didn't think that a 64-bit version of NTP was included in the Meinberg distribution. When I looked briefly at the Windows port in: ntp-4.2.4p4\ports\winnt\ntp.dsw I found that VS2005 needed to convert the format of some of the files - so it looked as if it might be for an older version of Visual Studio. I can't build NTP because the openssl definitions appear to be missing from the download, and I got this error as well: BSCMAKE: error BK1506 : cannot open file '.\debug\nt_clockstuff.sbr': No such file or directory Comments? Cheers, David _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
