Re: Shark and Sampler problems
Re: Shark and Sampler problems
- Subject: Re: Shark and Sampler problems
- From: Rick Altherr <email@hidden>
- Date: Tue, 1 Aug 2006 10:18:29 -0700
Just a followup. It turns out that in this case, the code was too
fast to be sampled by Shark (see Nyquist) and thus wasn't showing up
in the profile.
--
Rick Altherr
Architecture and Performance Group
email@hidden
On Aug 1, 2006, at 9:43 AM, Rick Altherr wrote:
I can only speak for Shark, but there is no known issue with Shark
and @try blocks. Are you sure that you are actually spending a
significant amount of time in the @try block?
--
Rick Altherr
Architecture and Performance Group
email@hidden
On Aug 1, 2006, at 5:00 AM, Kay Röpke wrote:
Hi folks!
I just tried to profile a an app+framework of mine using Shark and
Sampler (when Shark failed to give me enough information).
Two issues:
1)
I looks to me that Shark didn't track stuff that went on inside a
@try Objective-C handler. In the relevant framework method
the interesting stuff is going on inside this @try block. Is it
known that Shark has any issue with this? I couldn't find anything
in the archives or Google.
2)
After Shark failed me, I tried Sampler to at least get a feeling
for what's taking the time. Mysteriously enough Sampler is failing
me, too.
After stopping recording samples every click in Sampler's UI is
giving me this line on the console:
2006-08-01 13:55:25.819 Sampler[9897] *** -
[NSConcreteAttributedString
_encodingCantBeStoredInEightBitCFString]: selector not recognized
[self = 0xa04e960]
What gives?
Thanks,
-k
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