![]() However you should really search MSDN if you want to know more, or just wait for some of the Windows gurus to get a better answer on that.Īll these considerations are not taking into account that with 32bit you're not making use of the (possible) additional instructions your 64bit CPU provides, thus some operations are just emulated (either through the CPU op code or inside the C/C++ libraries) instead of being directly invoked through an asm instruction. It's something of a middleware between the application and the OS and provides 32bit compatible API for the application. Chocolatey is trusted by businesses to manage software deployments. Chocolatey integrates w/SCCM, Puppet, Chef, etc. On Windows 32bit applications run through the WOW64 emulation layer, but I'm not intimate with it. Chocolatey is software management automation for Windows that wraps installers, executables, zips, and scripts into compiled packages. That's one of the reasons I just threw Skype away - I'm not maintaining 300MB of 32 bit libraries just to run that buggy application. ![]() To run a 32bit app on my 64bit Linux I have to add a foreign architecture to the package manager and install the whole dependency tree for the application (this includes, but is not limited to all the Qt libs, the C runtime, the C++ standard library and so on). Linux keeps (at least my Debian does, but should apply to most other distros) a full set of x86 libraries for that case. Is there a real/significant difference if we are talking about Windows or Linux applications? Most windows developers are not as pedantic, including those that work in MS. I firmly believe 圆4 should be the preferred architecture and x86 is to be provided as a compatibility layer only, but that's just me. Yes there are significant differences that go as deep as assembly and register sizes, memory addressing and so on.ĭoes it worth to maintain two versions of the same application?ĭepends on the platform and the overhead you're willing to live with (relevant for windows). There is a real/significant difference between running a 32bit Qt application from a 64bit operating system compared to the 64bit version of the same software.
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