64-bit

问题 After following the blog post on using the Visual Studio Emulator for Android from Android Studio, and starting the emulator, when I am prompted to choose a running emulator, nothing shows up on the list. I'm running Windows 10 x64. 回答1: Open an admin command prompt and enter the following; then restart the emulator. reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Android SDK Tools" /v Path /d %localappdata%\Android\sdk Or update the registry manually: In regedit, navigate to HKEY_LOCAL

问题 I have been working with pygtk on linux for some time.I just want to make my app more distributable. Now I have used pygtk for 32 bit, but now I'd like to use pygtk for 64bit using pygtk 64bit. I have downloaded the all in one installer. I have changed my path as gtk would want and run the "pkg-config --cflags gtk+-2.0" command then ran the gtk-demo command and it did give me a demo and that works perfectly! Just I am missing someting because there in still no module named 'gtk' in my python

问题 I would like to keep my top level .wxs DRY while building 32 and 64 bit installers. I am using the -arch argument to candle.exe to control what default installer architecture is getting built. The wall I am hitting right now is that it appears the ProgramFilesFolder is different between 32 and 64bit (ProgramFiles64Folder) architectures. Here is my first attempt to work around: <?if $(sys.BUILDARCH)=x64 ?> <Directory Id='ProgramFiles64Folder' Name='PFiles'> <?else ?> <Directory Id=

问题 I've realized that Little's Law limits how fast data can be transferred at a given latency and with a given level of concurrency. If you want to transfer something faster, you either need larger transfers, more transfers "in flight", or lower latency. For the case of reading from RAM, the concurrency is limited by the number of Line Fill Buffers. A Line Fill Buffer is allocated when a load misses the L1 cache. Modern Intel chips (Nehalem, Sandy Bridge, Ivy Bridge, Haswell) have 10 LFB's per

问题 I'm having some problems with Edit and Continue when using Visual Studio 2010 on a Windows 7 64 bit machine. I've ensured the following Edit and Continue is enabled under Tools>Options>Debugging>Edit and Continue My solution platform is set to x86 My solution configuration is set to Debug All my projects are building for Debug and x86 For all projects under Projects>Properties>Build the Optimize code is unchecked When I hit a break point and try to edit I and confronted with the following

问题 According to this MSDN page: WOW64 enables 32-bit applications to take advantage of the 64-bit kernel. Therefore, 32-bit applications can use a larger number of kernel handles and window handles. However, 32-bit applications may not be able to create as many threads under WOW64 as they can when running natively on x86-based systems because WOW64 allocates an additional 64-bit stack (usually 512 KB) for each thread. In addition, some amount of address space is reserved for WOW64 itself and the

问题 Since there doesn't seem to be an intrinsic for ADC and I can't use inline assembler for x64 architecture with Visual C++, what should I do if I want to write a function using add with carry but include it in a C++ namespace? (Emulating with comparison operators is not an option. This 256 megabit add is performance critical.) 回答1: There is now an instrinsic for ADC in MSVC: _addcarry_u64 . The following code #include <inttypes.h> #include <intrin.h> #include <stdio.h> typedef struct { uint64

问题 I can't start the SQL Server browser from SQL Service Configuration Manager 2008 version. There are absolutely no options to start the service. It's disabled as image shown below. How should I start the service again? 回答1: If it is disabled, go to Control Panel->Administrative Tools->Services , and look for the SQL Server Agent . Right-click, and select Properties From the Startup Type dropdown, change from Disabled to Automatic . 回答2: Make sure that you run the SQL Server Configuration

问题 I'm currently working on creating a shared lib DLL but I need to load it at runtime in a 64 bit environment so it currently doesn't work. How can I compile 64bit dlls from code blocks using g++ ? I've tried compiler options like -m64 but none seem to work. 回答1: To compile 64-bit programs on windows using g++, you need MinGW64. I believe that Code::Blocks comes with MinGW32. To install it onto Code::Blocks, extract the zip file to a folder without spaces, such as C:\MinGW64 Open Code::Blocks

问题 I've been using Microsoft.Jet.OLEDB.4.0 and Microsoft.ACE.OLEDB.12.0 to read in .csv, .xls, and .xlsx files. I just found out that neither of these technologies are supported in native 64bit mode! I have 2 questions: What is the supported way to programatically read .csv, .xls, and .xlsx files in 64 bit mode. I just can't find answers to this anywhere. If I can't read in all three file types, what is the best way to read in .csv files in a 64 bit environment? Notes: I'm using .NET (3.5p1)