Re: [Boost-bugs] [Boost C++ Libraries] #3504: deadline_timer (based on UTC time) is not suitable for communication timeouts

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #3504: deadline_timer (based on UTC time) is not suitable for communication timeouts
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-03-15 22:28:11

#3504: deadline_timer (based on UTC time) is not suitable for communication
timeouts
--------------------------------------------+-------------------------------
  Reporter:  Bjarne Laursen <bla@…>         |       Owner:  chris_kohlhoff
      Type:  Feature Requests               |      Status:  closed        
 Milestone:  Boost 1.41.0                   |   Component:  asio          
   Version:  Boost 1.41.0                   |    Severity:  Problem       
Resolution:  wontfix                        |    Keywords:                
--------------------------------------------+-------------------------------

Comment(by simon.reye@…):

 Replying to [comment:7 anonymous]:
 > I've looked into the QueryPerformanceXXXXX functions and it seems they
 may not be as accurate as I would like. While the GetTickCount version
 requires a mutex it may be better to suffer a possible small performance
 hit in order to maintain accuracy.
 >
 > If anyone has any up to date knowledge of any issues with the
 QueryPerformanceXXXXX functions I would appreciate it.

 In the past they have been a problem, especially on multi-core processors
 but MSDN assures us that QueryPerformanceFrequency will not change once
 the system has started.

 http://msdn.microsoft.com/en-us/library/ms644905%28VS.85%29.aspx

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3504#comment:8>
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