[ace-users] Innacurate timers in Linux after 5.5.6
Douglas C. Schmidt
schmidt at dre.vanderbilt.edu
Tue Jul 24 10:12:47 CDT 2007
> On 7/24/07, Johnny Willemsen <jwillemsen at remedy.nl> wrote:
> > The configure script does check a lot of defines, but it really isn't
> > complete. A large amount of work has to be done to improve that support, but
> > that will need funding. Probably something gets detected wrong and then in
> > ACE_OS::gethrtime() the wrong code is triggered.
> I recently rebuilt ACE using the configure script and found that the
> resulting config.h had (mistakenly) decided that ACE_OS::fast_memcpy
> was faster than ::memcpy (it isn't, by a factor of about 3) and that
> my system had no SysV named semaphore operations (it does).
> It seems that configure is definitely to be used with some care and
> the resulting config.h should be carefully checked.
Yes, indeed! In general, the configure scripts need to be enhanced and
tested carefully. It would be great if someone(s) would like to
volunteer to help with this effort and/or sponsor one of the commercial
companies to do the work.
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