On Jan 25, 3:31 pm, "Diez B. Roggisch" <de...@nospam.web.de> wrote: > Am 25.01.10 22:22, schrieb AlexM: > > > > > On Jan 25, 2:42 pm, "Diez B. Roggisch"<de...@nospam.web.de> wrote: > >> Am 25.01.10 21:15, schrieb AlexM: > > >>> On Jan 25, 2:03 pm, "Diez B. Roggisch"<de...@nospam.web.de> wrote: > >>>> Am 25.01.10 20:39, schrieb AlexM: > > >>>>> On Jan 25, 1:23 pm, "Diez B. Roggisch"<de...@nospam.web.de> wrote: > >>>>>> Am 25.01.10 20:05, schrieb Alexander Moibenko: > > >>>>>>> I have a simple question to which I could not find an answer. > >>>>>>> What is the total maximal size of list including size of its elements? > >>>>>>> I do not like to look into python source. > > >>>>>> But it would answer that question pretty fast. Because then you'd see > >>>>>> that all list-object-methods are defined in terms of Py_ssize_t, which > >>>>>> is an alias for ssize_t of your platform. 64bit that should be a 64bit > >>>>>> long. > > >>>>>> Diez > > >>>>> Then how do explain the program output? > > >>>> What exactly? That after 3GB it ran out of memory? Because you don't > >>>> have 4GB memory available for processes. > > >>>> Diez > > >>> Did you see my posting? > >>> .... > >>> Here is what I get on 32-bit architecture: > >>> cat /proc/meminfo > >>> MemTotal: 8309860 kB > >>> MemFree: 5964888 kB > >>> Buffers: 84396 kB > >>> Cached: 865644 kB > >>> SwapCached: 0 kB > >>> ..... > > >>> I have more than 5G in memory not speaking of swap space. > > >> Yes, I saw your posting. 32Bit is 32Bit. Do you know about PAE? > > >> http://de.wikipedia.org/wiki/Physical_Address_Extension > > >> Just because the system can deal with more overall memory - one process > >> can't get more than 4 GB (or even less, through re-mapped memory). > >> Except it uses specific APIs like the old hi-mem-stuff under DOS. > > >> Diez > > > Yes, I do. Good catch! I have PAE enabled, but I guess I have compiled > > python without extended memory. So I was looking in the wrong place. > > You can't compile it with PAE. It's an extension that doesn't make sense > in a general purpose language. It is used by Databases or some such, > that can hold large structures in memory that don't need random access, > but can cope with windowing. > > Diez
Well, there actually is a way of building programs that may use more than 4GB of memory on 32 machines for Linux with higmem kernels, but I guess this would not work for python. I'll just switch to 64-bit architecture. Thanks again. AlexM -- http://mail.python.org/mailman/listinfo/python-list