You can have Shark profile a single process - that's one of the options in
the main UI bar.
And you should use Shark as well as gprof - they test in different ways.
Gprof requires mangling your code with extra calls, but can catch small
functions that take little time. And Shark can profile a real, final build
with no modification, but won't always catch small/fast functions.
Chris
On 4/12/06 3:07 PM, "Bob Portmann" <email@hidden> wrote:
> --- John Stiles <email@hidden> wrote:
>> Not to dismiss this issue, but is there any reason why you can't use
>>
>> Shark?
>> Shark is really unparalleled in the world of performance tuning.
>
> I did try Shark and didn't like that it was profiling everything that
> was running. I just want to look at one process from beginning to end.
> I also tried Saturn which I liked better, but it seemed it would only
> work when running a OS X style app. I want to profile a command line
> program and it is a real pain to have to make a carbon app (or
> whatever) out of it just so I can profile it (however, I was able to
> figure out how to do this using the Absoft IDE, which I do not use
> otherwise).
>
> The bottom line for me is that prof is very easy to use and gives me
> enough information to speed up my program. These other methods are a
> hassle. Also, if I remember right (I did these tests a while ago) the
> times reported by Shark and Saturn were different so I didn't know
> which to trust.
>
> Bob
>
>> On Apr 12, 2006, at 2:18 PM, Bob Portmann wrote:
>>
>>> I have the same problem as described below, but on Mac OS X 10.4.6.
>>> The bug was reported on May 24, 2005 (or possibly earlier).
>> Certainly
>>> Apple has had time to fix it. Will they? Just the latest
>> frustration
>>> trying to switch from Unix to Mac...
>>>
>>> Bob
>>>
>>> Subject: Re: problems with gprof on OS X Tiger
>>> From: Diarmuid Corcoran <email@hidden>
>>> Date: Tue, 24 May 2005 20:47:50 +0200
>>>
>>> Hi,
>>> Thanks for that info! I've bug reported this problem as "Problem
>> ID:
>>> 4123355" last week. Haven't received any further information from
>>> apple
>>> however.
>>> /Diarmuid.
>>>
>>> On May 24, 2005, at 8:14 PM, Jacinto S. wrote:
>>>
>>>> I'm having the same problem: profiling works fine on 10.3.9 but
>> not
>>>> 10.4.1. Also, it's not solely an issue with gcc 4 as the same
>> thing
>>>> happens with gcc 3.3 and xlf 8.1.
>>>>
>>>>
>>>>
>>>>> After upgrading to OS X Tiger 'gprof' seems to be broken (for me
>>>>> anyhow!). Included below is a sample of the broken profile. It
>> seems
>>>
>>>>> all times are reported as zero and the first entry in the flat
>>>>> profile is 'past end of text [1]'. Has anybody else seen this?
>> Can
>>> it
>>>>> have something to do with gcc4?
>>>>> Thanks,
>>>>> Diarmuid.
>>>>>
>>>>> % cumulative self self total
>>>>> time seconds seconds calls ms/call ms/call name
>>>>> 0.0 0.00 0.00 131911787 0.00 0.00 past end of text [1]
>>>>> 0.0 0.00 0.00 81 0.00 0.00 __ZN14PrecisionTimer8tickToUsEy [25]
>>>>> 0.0 0.00 0.00 81 0.00 0.00 __ZN17GetTimeOfDayTimer8tickToUsEy
>> [26]
>>>>> 0.0 0.00 0.00 27 0.00 0.00 __ZN14PrecisionTimer10startTimerEv
>> [27]
>>>>> 0.0 0.00 0.00 27 0.00 0.00
>> __ZN14PrecisionTimer15printTabAverageEv
>>> [28]
>>>>> 0.0 0.00 0.00 27 0.00 0.00 __ZN14PrecisionTimer6updateEy [29]
>>>>> 0.0 0.00 0.00 27 0.00 0.00 __ZN14PrecisionTimer9stopTimerEv [30]
>>>>> 0.0 0.00 0.00 18 0.00 0.00 __ZN8TestSort4getnEv [31]
>>>>> 0.0 0.00 0.00 9 0.00 0.00 __ZN10BubbleSort4sortEPji [32]
>>>>>
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