[erlang-questions] R11B-5 vs R12B-1: Win32 CPU Usage?
Mon Mar 31 20:32:34 CEST 2008
Yesterday I decided to change from R11B-1 to R12B-1 and had the following
1) erl_interface libraries requires Visual Studio 2005 (Not documented at
2) R12B-1 consumes more CPU time than R11B-1.
This is not documented at all. It should be part of potential
I can live with it, but it would have been nice to know it before I decided
Application compiled with R11B-5 and using R11B-5 runtime I get CPU usage
when testing of 16%.
Application recompile with R12B-1 and using R12B-1 runtime I get CPU usage
when testing of 35%.
The OS and Hardware is the same for both instances, just the runtime the
I have swapped the runtimes a couple of times to make sure it is not a
fluke, the results remain the same R12B-1 is heavier than R11B-5!
OS: Windows XP Professional
HW: Pentium 4 3Ghz and 2G Ram
Comparative CPU usage for same application on same HW and OS:
R12B-1: 35% CPU
R11B-5: 16% CPU
Have any one noticed something like this?
More information about the erlang-questions