Re: [Valgrind-users] massif instrumentation in C/C++ code

[Peter T. <pt...@li...>]

 

This is a *very* impressive tool. 

It has already helped me A LOT today. Thanx!! 

But adding my idea would make it super^2 (needs cowork between the
valgrind core and your tool) 

/P 

---
Peter Toft <pt...@li...>

Wilfried Goesgens skrev den 2014-11-20 12:57: 

> Hi Peter, 
> 
> you should try massif visiualizer: 
> 
> https://projects.kde.org/projects/extragear/sdk/massif-visualizer 
> 
>> Thu Nov 20 2014 03:04:14 EST from "Peter Toft" <pt...@li...> Subject: [Valgrind-users] massif instrumentation in C/C++ code 
>> Hi all
>> 
>> One thing that I often is missing with valgrind/massif is a way to know 
>> know where I roughly am in my code when I see a given memory peak.
>> 
>> I could envision to add a valgrind-macro or alike in my C-code to 
>> indicate where I am in my code add (tentative syntax)
>> 
>> VALGRIND_MASSIF("calculator1()")
>> 
>> and another place
>> 
>> VALGRIND_MASSIF("reduceMem - middle")
>> 
>> Then the ms_print output should indicate (see the % signs) when in the 
>> code flow that we had this function call executed.
>> 
>> 19.63^ ###
>> | % #
>> | % # ::
>> | % # : :::
>> | % :::::::::# : : ::%
>> | % : # : : : %::
>> | % : # : : : %: :::
>> | % : # : : : %: : ::
>> | % ::::::::::: # : : : %: : : 
>> :::
>> | % : : # : : : %: : : 
>> : ::
>> | ::%::: : # : : : %: : : 
>> : : ::
>> | @@@: % : : # : : : %: : : 
>> : : : @
>> | ::@ : % : : # : : : %: : : 
>> : : : @
>> | :::: @ : % : : # : : : %: : : 
>> : : : @
>> | ::: : @ : % : : # : : : %: : : 
>> : : : @
>> | ::: : : @ : % : : # : : : %: : : 
>> : : : @
>> | :::: : : : @ : % : : # : : : %: : : 
>> : : : @
>> | ::: : : : : @ : % : : # : : : %: : : 
>> : : : @
>> | :::: : : : : : @ : % : : # : : : %: : : 
>> : : : @
>> | ::: : : : : : : @ : % : : # : : : %: : : 
>> : : : @
>> 0 
>> +--------------------------%-------------------------------%-------------->KB 
>> 0 
>> 29.48
>> % % 
>> reduceMem - middle
>> % calculator1()
>> 
>> Number of snapshots: 25
>> Detailed snapshots: [9, 14 (peak), 24]
>> 
>> Does something remotely similar to this already exist?
>> 
>> Best
>> 
>> -- 
>> Peter Toft <pt...@li...>
>> 
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