Hi,
I would like to count the instructionsof individual ALU and floating pointoperations (ADD, MULT, COMP, DIV, ...).
Platform: Linux Mandrake 10.2/ 2.6.11-6mdksmp/i686 Intel D 3.2GHz/VTune 9.0
For base optimization (-O2), i found that my application triggers the followingCPU events:
"x87 Instructions Retired" and"Packed Single-precision Floating-point Streaming SIMD Extension Instructions Retired".
I use vtl command line,
vtl activity -c sampling -o "-ec en='x87 Instructions Retired' -app $SCRIPT -moi $APPL run
I checked Vtune users guide and found some intersting events. example:
****************************************
DIV
Event Code: 0x13
Mask: 0x00
Category: Floating Point Events;
Definition: Divide operations executed.
Description: This event counts the number of divide operations executed. This includes integer divides, floating point divides and square-root operations executed.
******************************************
Can i use this event on my CPU. IF yes, how can i do it. Any work around!!??
A friends advised to look at PIN, what do you think?
http://www.intel.com/cd/ids/developer/asmo-na/eng/microprocessors/ia32/pentium4/optimization/183095.htm
Abed
