Here’s what i found out and the Python program I generated. I tested this with a .dmp file made on linux & analyzed on windows xp. It worked FINE. The Python file is named, “analyze_dmp.py”. #!/usr/local/bin/python2.7 # -*- coding: UTF-8 -*- “””analyze_dmp.py takes the file INFILEPATH [a pstats dump file] Producing OUTFILEPATH [a human readable … Read more
which XSLT engine are you using? If you are using the .NET engine and Visual Studio you could use the XSLT profiler integrated into Visual Studio which is a very useful. Other excellent profiling tools are Altova’s XML Spy and Oxygen. If you would post your XSLT it would be easier to tell you where … Read more
A function call requires that the current execution frame is suspended, and a new frame is created and pushed on the stack. This is relatively expensive, compared to many other operations. You can measure the exact time required with the timeit module: >>> import timeit >>> def f(): pass … >>> timeit.timeit(f) 0.15175890922546387 That’s 1/6th … Read more
Passing the -verbose:class switch to the java command will print each class loaded and where it was loaded from. Joops is also a nice tool for finding missing classes ahead of time.
Code Review Notes 47.8% of your time is spent in GC. 1.5G is allocated on the heap (!) The repa code looks a lot more complicated than the list code. Lots of parallel GC is occuring I can get up to 300% efficiency on a -N4 machine Putting in more type signatures will make it … Read more
I asked me the same question two years ago. I didn’t know what the grey bars respectively the System category stand for. It was hard to find an official answer because the only thing the Chrome DevTools Docs said was “Activity that was not instrumented by DevTools”. But this statement was removed since there is … Read more
Simplest approach for a program running in java 6 from Sun is to use the jvisualvm program in the jdk. Allows you to attach and profile without any special setup.
Overhead, that’s the amount of power that’s needed to bring the hardware up to be able to do your work as well as put it back to sleep. And overhead is the energy that is required to bring up the radios and all the other system hardware which is required for your application to perform … Read more