C C++ Programming - Useful Tracing and Profiling Tools

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have been searching for few tracing and profiling tools these days. Tracing tools are my fav because we will be able to debug it while it is running and can get an overview of what is happening inside a.out. esp while learning the flow of a prog.I found the given below tools and links very useful...
Linux
gprof
GNU gprof
Speed your code with the GNU profiler
callgrind
Callgrind: a heavyweight profiler
ltrace/strace/mtrace
These are low level system calls, library calls and memory tracers
Overview
Systemtap
Solaris
dtrace - my fav
BigAdmin: DTrace
DTrace Review - Really Cool Video - A must see one!
IBM - AIX
truss/trace
i haven't personally used these, still has to do some more research on these
Probevue
HPUX
if lucky you will find some here
Porting And Archive Centre for HP-UX
Labels: AIX, C, C++, HP-UX, Linux, Solaris, Unix