RE: [ECOS] profiler & memory leak detector

["benny" <benny5@mindspring.com>]

I guess such tool (similar to VxWorks SPY) would be great.
It actually works "per task" so after a while one can get a list of
task CPU consumption. Just the timer needs to be with the higher resolution
(some spare timer?)
-Benny

> -----Original Message-----
> From: ecos-discuss-owner@sources.redhat.com
> [mailto:ecos-discuss-owner@sources.redhat.com]On Behalf Of NavEcos
> Sent: Monday, July 22, 2002 1:32 PM
> To: ecos-discuss@sources.redhat.com
> Subject: [ECOS] profiler & memory leak detector
>
>
> Try as I may, I cannot post this to the ecos-devel list, although I am
> signed up for it, so I'm going to post it here in the discussion list.
>
> Has or does anybody use vxWorks?
>
> If you have, you may have used their profiler.  I have a very simple
> profiler that I can make available for the x86 PC target.  I would like to
> know if there would be any interest in making such a beast
> available in the
> main tree?  It requires a modification in the kernel in vectors.S.
> Basically, I just detect interrupts with vector 0x20 (the 10 msec
> interrupt)
> and record the last function the program was in when the periodic system
> tick fired.  I know this has some problems, namely anything that
> has a delay
> is tied to the system tick, but for stressed systems it gives a pretty
> accurate view of what functions you have to streamline.
>
> VxWorks also has a tool called memtool.  It just detects which functions
> (and if memory serves tasks) allocate and dealloc memory and in
> which heap.
> This is useful for detecting memory leaks although not extremely
> useful.  I
> don't have a similar tool, but I can make one.
>
> Is there any interest in putting these into the main tree?
> Putting in HOOKS
> to do it is very easy, and I would like to do that if there is
> any interest
> in incorporating it into the main tree.
>
> The profiler is very architecture dependant so I need help making
> that work
> for other platforms than x86 PC.
>
> -Rich
>
>
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