any easy to use utility/tool/profiler/benchmark that able to test what is the maximum users a web application able to support by analyzing session size , cpu speed, memory size..etc and 'PREDICT' when server is overpacked/overloaded? ...
Our team is faced with slow but serious Javascript memory leak. We have read up on the normal causes for memory leaks in Javascript (eg. closures and circular references). We tried to avoid those pitfalls in the code but it likely we still have unknown mistakes left. I started my search for available tools but would like input from pe...
I want to use valgrind to do some profiling, since it does not need re-build the program. (the program I want to profile is already build with “-g") But valgrind(callgrind) is quite slow ... so here's what I to do: start the server ( I want to profile that server) kind of attach to that server before I do some operation on server, sta...
I'm starting the development of an OSGi bundle for an application that will be deployed in a device with some hardware limitations. I'd like to know how could I profile the execution of that bundle to be always sure that it's going to fit with its dependencies in the final device. It would be nice to have a profiler to know how much memo...
Is there any recommended java application profiling tutorial? I am now using jProfiler and eclipse TPTP with my profiling. However, although equipped with wonderful weapons, as a newbie in java profiling, I am still missing the general theory and skill in pinpointing the bottleneck. So would you please provide me with some recommended tu...
We've been profiling our code recently and we've come across a few annoying hotspots. They're in the form assert(a == b, a + " is not equal to " + b) Because some of these asserts can be in code called a huge amount of times the string concat starts to add up. assert is defined as: def assert(assumption : Boolean, message : Any) = .....
I write a lot of .NET based plug-ins for other programs which are usually compiled as a DLL which is up to the native application to start up. I've been using Equatec's profiler, which works great, but now would like something with more features, including the ability to profile memory usage. I tried out Red Gate's Ant Profiler, but as ...
What is the best way to undertake Servlet profiling? In particular I am looking for a solution that can show the execution times of the method calls within the servlet. I am running the Servlet within a Tomcat environment. I have tried VisualVM but it only allows me to see the method calls from the Tomcat thread rather than the Servle...
I need a memory snapshot at the peak of my application's memory usage - is there an easy way to achieve this? thanks ...
I need to gprof a library in our system to examine the function calls and see if we can optimize it any more. Basically, what I have is Executable A which uses a shared Library myLib.so I want to gprof the myLib.so. When I compile myLib.so source using -pg option, it produces a .so file just fine. But, recompiling the Executable A ag...
I'm trying to use SQL Server Profiler (2005) to track down some application performance problems. One of the calls being made is to a table-valued user-defined function. This function wraps a select that joins several tables together. In SQL Server Profiler, the call to the UDF is logged. However, the select that underlies the UDF isn't...
I am trying to reduce the memory footprint of my application. JVisualVM heap dumps report that the objects taking up the most space are: char[] byte[] int[] Which isn't particularly helpful. How can I track these objects back to the parent classes that are holding them? Thanks ...
Hi, I want to understand how a C++ program that was given to me works, and where it spends the most time. For that I tried to use first gprof and then gprof2dot to get the pictures, but the results are sometimes kind of ugly. How do you usually do this? Can you recommend any better alternatives? P.D. Which are the open source soluti...
short version: Is there a good time based sampling profiler for Linux? long version: I generally use OProfile to optimize my applications. I recently found a shortcoming that has me wondering. The problem was a tight loop spawning c++filt to demangle a c++ name. I only stumbled upon the code by accident while chasing down another b...
While setting up a third party closed source CMS (Sitefinity) the setup doesn't create all tables and procedures necessary to run it. The software lacks a logging system itself and it made me wonder: could I trace and monitor failing SQL statements from MySQL? This serves more than only the purpose of solving my issue with Sitefinity. M...
Is there a way to do automatic profiling in visual studio 2008? I know how the profiling works both from the command line and using the GUI in VS08. What I want to accomplish: After my nightly build I want to complete some profiling (instrumental) to see if some functions (will most likely always be the same) have changed in some negat...
Hi guys, I have a Spring application that I believe has some bottlenecks, so I'd like to run it with a profiler to measure what functions take how much time. Any recommendations to how I should do that? I'm running STS, the project is a maven project, and I'm running Spring 3.0.1 Cheers Nik ...
I've been trying to optimize a numeric program of mine, and have run into something of a mystery. I'm looping over code that performs thousands of floating point operations of which 1 call to pow - nevertheless, that call takes 5% of the time... That's not necessarily a critical issue, but it is odd, so I'd like to understand what's ha...
I know that I can use gprof to benchmark my code. However, I have this problem -- I have a smart pointer that has an extra level of indirection (think of it as a proxy object). As a result, I have this extra layer that effects pretty much all functions, and screws with caching. Is there a way to measure the time my CPU wastes due to c...
What is the best way to save a user profile with Google App Engine (Python) ? What I did to solve this problem is create another Model, with a UserProperty, but requesting the profile from the user I have to do something like this: if user: profile = Profile.all().filter('user =', user).fetch(1) if profile: property = s....