News for hackers. Stuff that matters.

A comment on GCC and C vs C++ Speed, Measured. Parent comment

Re:GCC and C vs C++ Speed, Measured by hartror on Thursday March 21, 2013 @06:27AM (#5414072)
What is the reasoning?
[ Parent | on HN ]
Re:GCC and C vs C++ Speed, Measured by lolcraft on Thursday March 21, 2013 @06:32AM (#5414095)
The best time measured is the time of execution with least switching to other processes. So, it's actually the closest to the real time.
[ Parent | on HN ]
Re:GCC and C vs C++ Speed, Measured by fulafel on Thursday March 21, 2013 @07:30AM (#5414322)
No, there are other things which affect timing besides switching to other processes. For example, virt:physical mapping of the process memory affects cache performance unpredictably, see http://d3s.mff.cuni.cz/publications/download/hocko-sipew10.p...
[ Parent | on HN ]
Re:GCC and C vs C++ Speed, Measured by fulafel on Thursday March 21, 2013 @07:28AM (#5414312)
No, there are other things which affect timing besides switching to other processes. For example, virt:physical mapping of the process memory affects cache performance unpredictably.
[ Parent | on HN ]