Re: The cost of memory allocation

[Paul Offord <Paul.Offord () advance7 com>]

Hi Max,

I have done some development on Linux but I’m currently the Wireshark stuff on Windows and Visual Studio.  If I get 
stuck and can’t get the info I need I may put the code on my Centos laptop.

Thanks and regards…Paul

From: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Max 
Dmitrichenko
Sent: 21 September 2016 18:19
To: Developer support list for Wireshark <wireshark-dev () wireshark org>
Subject: Re: [Wireshark-dev] The cost of memory allocation


2016-09-21 12:14 GMT+03:00 Paul Offord <Paul.Offord () advance7 com<mailto:Paul.Offord () advance7 com>>:
Thanks Graham – that’s a great point and I’ll take a look this evening with a Release build.

Paul, if you are familiar with Linux, I may recommend you to use callgrind tool from the valgrind toolset for this 
purpose. Its reports can be viewed with KCachegrind and they are very informative. The only disadvantage is that is 
slows down execution by the factor of 8-10 since it virtualizes execution of all process'es instructions to estimate 
accurate number of machine cycles needed for execution and to build a good callgraph. The advantage is that report is 
not a statistic based on many snapshots of process state but is an accurate estimation of virtually any single function 
call with a perfect estimation of time taken by the function body and of time taken by all its callees. Also you can 
use it on a release build without any modification.

--
With best regards
  Max Dmitrichenko

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