I have a test application that essentially writes log files.
Each minute if the file is bigger than 10MB the application starts a new file.
When I use Visual Studio 2010, I run my application without debugging in Release x64 mode and I get about 40-50MB by minute.
I got the same by running the executable.
Using the same mode and same build while running a "Basic Hotspots analysis" I can get up to 380Mo/min.
No particular software is running during the test (CPU or HDD "burner").
I've ran the test several times and the result is always the same.
In other words, I get 6-7 times the writing speed while profiling!
Is there any possible reasons why it's faster with the Basic Hotspots analysis?
Is there anything that Vtune disables or enables to get faster writing speed?
Did I miss something ?
Here's my PC Specs :
Windows Professional 64bit SP1
Intel Xeon E5462 @ 2.80GHz (2 processors)
12 GB of Ram
We've got the latest version of Vtune according to the Intel Software Manager
The GlobalFlag is disable (set to zero) in each case. We had problem profiling with the GlobalFlag before.
Any suggestions would be greatly appreciated.
Thanks for your help,