![]() I'm really not sure why it isn't considered more of a popular option, it seems like a nice win to me, trade-off being you can't have more than 2GB RAM. Files generated by SimpleMovieX are accepted fine by iTunes but when loaded into MetaZ (a) none of the tags are detected (all fields are blank like on a never before tagged file) and (b) when MetaZ is told to write the file after setting tags it fails to do so (write takes 0 seconds and Queue window shows Atomic Parsley exit code 1). If you're real brave, you can try the hybrid x32 ABI (32 bit pointers, 64-bit registers) which is meant to kind of get the best of both worlds. At the same time, 64-bit is less likely to find false positives when the GC was looking for pointers, so small win for 64-bit there. It also ran faster, since it traverses all its memory to do garbage collection, which fit in cache better, there was less overall RAM to traverse, looking for pointers, etc. Not to mention "all apps" use less RAM (kernel, etc.) In rare extreme cases, a 64-bit app can process twice as much data in the same time most of the time the difference will only be in the range 1-5%, and can go in either direction: sometimes a 32-bit build is indeed a little faster than a 64-bit build it really depends on what the app is doing.)įor windows apps, 32 bit are viewed as "most portable" (easier to distribute) though that's becoming less of an issue.įor memory hogs like Ruby it seemed to me like it used 1/2 the RAM, so you could run more apps on boxes that were RAM limited. ![]() (Performance, in my experience, is a mixed bag: smaller code and smaller data mean better cache utilization on 32-bit OTOH having more and wider registers on 64-bit can save instructions there. But it does mean that if you're targeting devices/machines with less than 4GiB memory anyway, you might want to stick with 32-bit builds, if memory consumption is a concern. That said, this generally isn't a reason not to move to 64-bit, as other benefits (more registers, more address space) typically outweigh this drawback. In theory, any C/C++ app could do the same thing, but it's a big engineering effort. V8 has recently addressed this by implementing " pointer compression" in its 64-bit version. I happen to know about JavaScript engines specifically, where the 64-bit version typically uses around 50% more memory for the same workload than the 32-bit version of the same engine. strings and numbers don't change their size, so the effective difference is not 2x. Aero Quartet provides all-terrain tools to get back on track. There's one big advantage: 32-bit applications use significantly less memory (precisely because pointers are smaller). Aero Quartet, SL is a privately held software and service company based near Barcelona, Spain Video Professionals also have bad days.
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