Shark woes
Shark woes
- Subject: Shark woes
- From: Keith Wiley <email@hidden>
- Date: Mon, 16 Jul 2007 16:54:58 -0700
When I launch Shark using the "Launch Using Performance Tool"
submenu, two windows appear, one titled "Shark" and one titled
"Launch Process". The Launch Process always has a message in the
lower left corner that says "Invalid path to working directory".
There is a place in that window where I can assign a different
working directory, but I have no idea what I'm supposed to put here.
The shark documentation has no explanation of this parameter (the
word "working" only occurs twice in the docs and neither instance
relates to this issue).
So I assign some arbitrary directory and the message always
invariably goes away, even if I assign the directory that was already
assigned when I launched Shark, but this undims the OK button, so
I've tried it that way, I've tried other directories, all kinds of
stuff. So I hit he OK button. Shark does its thing. What I don't
understand is, if I run the program from the command line it takes
fair amount of time to run, about 153 seconds. Likewise, if I run
the program from Xcode, but without Shark, it runs for the same
amount of time and produces the same standard I/O. However, when I
run it using Shark, it zips through in a couple of seconds, so it is
not performing the same computation.
I am unsure where to observe the standard output during a Shark run
and I don't have any theories as to why a Shark run clearly performs
a subset of my computation, as if some path or something is lost and
the program effectively bails. I can't really tell what's going on
because I don't where the output went. Where does the standard
output go during a Shark run?
Any help on any of these issues?
Thank you.
________________________________________________________________________
Keith Wiley email@hidden http://
www.cs.unm.edu/~kwiley
"I do not feel obliged to believe that the same God who has endowed us
with sense, reason, and intellect has intended us to forgo their use."
-- Galileo Galilei
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