jit

I'm learning Java and the following things are a bit confusing for me. What I understood is: Java Compiler → The Java compiler just converts .java programs into .class files, which means converting our source code into bytecode (it is a list of op codes for the virtual machine (JVM) which makes Java platform-independent). Java Interpreter → merely "interprets" the code and does not transform it into native machine code. It executes each and every instruction of the byte code one-by-one as a command and carries it out, regardless how many time the same instruction occurs. That's why it's slow

I have a JAVA process that runs every day and takes about 1,000 or 2,000 hits before it is fully optimized by the JIT. What I'd like to do is save the JIT info so that the next day it can start in an optimized state. It seems like this should be possible, but I have not been able to find any method for doing so. You could use an ahead-of-time compiler like JET or GCJ, but I don't believe there's any standard way to save the JIT form. Keep in mind that this ties your program into the architecture you're running on, but it sounds like you're aware and accepting of this. One option is to control

I've installed the new Jit compiler for .NET RyuJit, and setup the AltJit=* key in .NetFramework in regedit as described in the installation docs. http://blogs.msdn.com/b/dotnet/archive/2013/09/30/ryujit-the-next-generation-jit-compiler.aspx So how do I verify that RyuJit is actually beeing used? Hans Passant Setup a do-nothing project with Project + Properties: Build tab, untick the Prefer 32-bit checkbox Debug tab, tick the Enable native code debugging Debug + Step Into. The Output window shows DLLs getting loaded. This line is what you are looking for: 'ConsoleApplication1.exe': Loaded 'C:

I've found that one of my application posted on the market produces weird results on some phones. Upon investigation it turns out there is an issue with one function which computes distance between two GeoPoints - sometimes it returns completely wrong value. This issue reproduces only on devices with MediaTek MT6589 SoC (aka MTK6589). And AFAIK all of such devices have Android 4.2 installed. Update I was also able to reproduce the bug on Lenovo S6000 tablet with MediaTek MT8125/8389 chip and on Fly IQ444 Quattro with MT6589 and with Android 4.1 installed. I created a test project which helps

I've been trying for several days to get @jit working to speed up my code. Finally I came across this, describing adding @jit to object methods: http://williamjshipman.wordpress.com/2013/12/24/learning-python-eight-ways-to-filter-an-image I have a class called GentleBoostC and I want to speed up the method within it that's called train . train accepts three arguments (a 2D array, a 1D array, and an integer), and returns nothing. This is what I have in code: import numba from numba import jit, autojit, int_, void, float_, object_ class GentleBoostC(object): # lots of functions # and now the