ngen

How can you determine whether a particular .Net assembly has already been ngen'd or not? I need to check from code. Even invoking the command-line would be fine. At the moment I can't see any way of determining this. Sasha You can try to find your assembly in "ngen cache" (C:\Windows\assembly\NativeImages_v2XXXXXXX). Сached assemblies will have the following format name: [basename]. ni .[baseextension] . Check From Code Check if we are loading an native image for the executing assembly. I am looking for the pattern "\assemblyname.ni" in loaded module filename property. using System; using

I was wondering if there's any way to change the behavior of the .NET JIT compiler, by specifying a preference for more in-depth optimizations. Failing that, it would be nice if it could do some kind of profile-guided optimization, if it doesn't already. This is set when you compile your assembly. There are two types of optimizations: IL optimization JIT Native Code quality. The default setting is this /optimize- /debug- This means unoptimized IL, and optimized native code. /optimize /debug(+/full/pdbonly) This means unoptimized IL, and unoptimized native code (best debug settings). Finally,

Has anybody here ever used ngen? Where? why? Was there any performance improvement? when and where does it make sense to use it? Yes, I've seen performance improvements. My measurements indicated that it did improve startup performance if I also put my assemblies into the GAC since my assemblies are all strong named. If your assemblies are strong named, NGen won't make any difference without using the GAC. The reason for this is that if you have strong named assemblies that are not in the GAC, then the .NET runtime validates that your strong named assembly hasn't been tampered with by loading

Directly related to this question . Given a managed assembly for Windows Phone, how can I generate native code for it for an ARM CPU? I don't have a Windows/ARM device (neither tablet nor a phone). There's the ngen utility out there, but AFAIK it can only generate code for the host machine (i. e. Intel). The reason why I'm asking, the offsets in the crash stack that Windows Phone Dev Center provides are not MSIL offsets (I've checked - they go way beyond MSIL function size). Those look like native code offsets. Now, there's no guarantee that the ARM code that's generated offline will exactly

AFAIK, ngen turns MSIL into native code (also reffered to as pre-JIT), however I never payed too much attention at it's startup performance impact. Ngen'd applications still require the .NET base class libraries (the runtime). Since the base class libraries have everything our .NET assemblies need (correct?) would it be possible to ship the framework's DLLs with my ngen'd application so that it does not require the runtime to be installed? (e.g., the scenario for most Windows XP machines) Oh, and please don't bother mentioning Remotesoft's Salamander Linker or Xenocode's Postbuild . They are

I simply want to speed up my .NET-base client side app and am considering NGEN-ing the code. Jeffery Richter wrote this warning about ngening code: •Inferior Load-Time Performance (Rebasing). When Windows loads an NGend file, it checks to see if the file loads at its preferred base address. If the file cant load at its preferred base address, then Windows relocates the file, fixing-up all of the memory address references. This is extremely time consuming because Windows must load the entire file into memory and modify various bytes within the file. For more information about rebasing please