64-bit Ubuntu and XBMC - Printable Version +- Kodi Community Forum (https://forum.kodi.tv) +-- Forum: Support (https://forum.kodi.tv/forumdisplay.php?fid=33) +--- Forum: General Support (https://forum.kodi.tv/forumdisplay.php?fid=111) +---- Forum: Linux (https://forum.kodi.tv/forumdisplay.php?fid=52) +---- Thread: 64-bit Ubuntu and XBMC (/showthread.php?tid=117522) |
64-bit Ubuntu and XBMC - rorylawson - 2011-12-23 Hi, If I was to install a 64-bit version of Ubuntu on machine due to having more than 3.5GB of RAM, could I run 32-bit XBMC on top without any problems? Am I right in thinking that having a 64-bit OS wouldn't make any difference because XBMC runs in 32-bit mode and wont be able to use the RAM over 3.5GB? So until XBMC is ported to 64-bit, it can not take advantage of the higher RAM? Cheers, Rory - vikjon0 - 2011-12-23 A bigger problem is that xbmc does not use that much memory anyway. Some operations are quicker in 64bit as far as I understand but I have not seen any such arguments for xbmc. - rorylawson - 2011-12-23 I guess I was thinking more about the higher end skins like Aeon which do load a lot of heavy graphics...just wondered if having a 64-bit OS would improve performance much? Cheers, Rory - vikjon0 - 2011-12-23 It may be quicker in true 64bit but not becuase of the extra memory I dont think. You should also note that that 64bit will require MORE memory. In theory this could make your system run slower. - vikjon0 - 2011-12-23 Quote:Some 64-bit programs, such as encoders, decoders and encryption software, can benefit greatly from 64-bit registers, while the performance of other programs, such as 3D graphics-oriented ones, remains unaffected when switching from a 32-bit to a 64-bit environment. It is unusual for a 64-bit program to perform worse than its 32-bit equivalent; this usually only happens due to a bug.[21] If we can trust the old wiki it sounds like 64 WOULD be quicker assuming you use a 64bit ffmpeg. - bobo1on1 - 2011-12-23 If you install a 32 bit version of ubuntu, you automatically get a pae enabled kernel, so you can use 64 gb of ram max. However you're still limited to 4 gb per process. Using a 64 bit ubuntu with a 64 bit xbmc should work ok. - routehero - 2011-12-23 I have ubuntu x64 and frequently build xbmc from git repository. I've got about 2TB of media, the largest file in ~/.xbmc/userdata/Database/ is 3MB, and I'm using refocus skin. xbmc.bin has VSZ of about 720MB on my system, and my memory usage is relatively flat. I don't think you will perceive a difference in performance in x64. Unless you have a very memory hungry JVM also running on the same system, you probably won't notice the lack of 64-bit. - Balthazaar - 2011-12-25 I'm running 64 bit Ubuntu 11.04 with xbmc built from git. I agree with routehero, I notice no difference in performance from the 32 bit version of the same build I run on Ubuntu 11.04 32 bit. |