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From Greg Ames <>
Subject Re: gettimeofday calls
Date Fri, 24 Jan 2003 14:45:24 GMT
MATHIHALLI,MADHUSUDAN (HP-Cupertino,ex1) wrote:
> I don't know if this has been discussed already, but I was thinking of the
> following alternatives : 
> 1. how about the listener thread in each of the child process keeps updating
> a global time variable that each of the threads can refer to ?. 
> 2. set the time at the begining of the process, and then each of the thread
> measures the amount of time it has been running.. (Current time = startup
> time + delta time).. AFAIK, the time taken to compute delta time is much
> lesser than gettimeofday..

I'm a little confused.  The gettimeofday()/apr_time_now() happens in the httpd 
core AFAIK.   Brian Pane said that it's cheaper than time() on some platforms, I 
believe.  If we want to discuss alternatives to that, the discussion belongs on 

But then in your next post it sounds like you're experimenting with the time() 
syscalls in mod_specweb99.

> Is this against the spec or something ?.

Which spec?  If you are referring to either the SPECWeb99 run rules or to 
RFC2616, neither of them dictate which syscalls you use.


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