profiler

问题 Is it possible to determine or even reasonably estimate how much power a program is using? The idea being to profile my code in terms of power consumption instead of just typical performance. Is it enough to measure CPU use, GPU use and memory access? 回答1: There are many aspects that can influence the power consumption of an application, and these will vary a lot depending on the used hardware. The easiest way to get an idea is to measure it. If your program is doing heavy calculations, it is

问题 I am trying to find the time taken by each method that my Java program calls, while executing. I do not want to litter my code with System.currentTimeMillis() . Maybe, something like a profiler or an IDE plugin, but I am not sure if that is what it is called. Can someone help me by pointing me in the right direction? Sample code : public static void main(String[] args){ Obj A = new Obj(); ObjDiff B = new ObjDiff(); A.callMe(); B.callMeToo(); } Tools/Frameworks : Eclipse Struts What I Want :

问题 My Codeigniter system uses multiple databases. I don't need every database on every page, so I load each connection in the model where it's needed, then load the required models within each controller. The profiler does not display any of the queries from these databases when I load things this way. This is how I load the databases in my models: $this->Companies_db = $this->load->database( 'companies', TRUE, TRUE ); I used to load all my databases in MY_Controller() ( an extension of the core

问题 Is it possible to get sql profiler for sql2008 for free or you have to have a license to get it? i.e. it won't work with sql express 回答1: First. SQL Profiler does work with SQL Express . Second. You can get SQL Profiler with the Developer version of SQL, which is included with all MSDN licenses. However you will not be able to get it for free with SQL Express like you can with SSMS. 回答2: You can get SQL Profiler with the Developer version of SQL. But how is written three answer before: SQL

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I come from a Matlab background so I am used to a profiler which profiles every single line and not just every function like gprof or callgrind . Is there a profiler for C with a similar feature? Thanks! (source: jburkardt at people.sc.fsu.edu) 回答1: Shark, one of the profiling tools in Mac OS X, can do that (or

问题 Very general: Is there an easy way to tell which line of code last freed a block of memory when an access violation occurs? Less general: My understanding of profilers is that they override the allocation and deallocation processes. If this is true, might they happen to store the line of code that last freed a section of memory so that when it later crashes because of an access violation, you know what freed it last? Specifics: Windows, ANSI C, using Visual Studio 回答1: Yes! Install the

问题 I am facing an error message while profiling a c# console application in VS 2010 (using CPU Sampling method of profiling). When I click on Start Profiling: following error message is displayed: "Could not launch D:\xxx\yyy\zzz.exe. Previous attempt to profile the application finished unsuccessfully. Please restart the application." I have tried to profile a new Console Application, but I face the same error message. What can be the reason for this error? Do I need to configure something?

问题 Are there any good code profilers/analyzers for Erlang? I need something that can build a Call graph for my code. 回答1: For static code analysis you have XREF and DIALYZER, for profiling you can use cprof, fprof or eprof, you can get good reference here... 回答2: The 'fprof' module includes profiling features. From the fprof module documentation: fprof:apply(foo, create_file_slow, [junk, 1024]). fprof:profile(). fprof:analyse(). fprof:apply (or trace ) runs the function, profile converts the

问题 Are there any good code profilers/analyzers for Erlang? I need something that can build a Call graph for my code. 回答1: For static code analysis you have XREF and DIALYZER, for profiling you can use cprof, fprof or eprof, you can get good reference here... 回答2: The 'fprof' module includes profiling features. From the fprof module documentation: fprof:apply(foo, create_file_slow, [junk, 1024]). fprof:profile(). fprof:analyse(). fprof:apply (or trace ) runs the function, profile converts the

问题 I've been testing out the performance and memory profiler AQTime to see if it's worthwhile spending those big $$$ for it for my Delphi application. What amazes me is how it can give you source line level performance tracing (which includes the number of times each line was executed and the amount of time that line took) without modifying the application's source code and without adding an inordinate amount of time to the debug run. The way that they do this so efficiently makes me think there