I would suggest one important correction. The last sentence might say "If you have a 64-bit processor and a 64-bit OS, then you can go much beyond 2 GB of heap."
Many people, especially Windows users, run 32-bit OSes on their 64-bit processors. In this case, the limits are the same as a 32-bit OS on a 32-bit processor. -----Original Message----- From: xmleditor-support-bounces at xmlmind.com [mailto:[email protected]] On Behalf Of Benoit Maisonny Sent: Monday, October 29, 2007 11:42 AM To: xmleditor-support at xmlmind.com Subject: Re: [XXE] Large documents Trond Trosterud wrote: >> This memory limit may of course be changed. How to do this is >> described here: http://www.xmlmind.com/xmleditor/faq.html#outofmemory > Ok, I went there, and set it to 2048m. Make sure you actually have more than 2GB of real memory, otherwise Java will use virtual memory (i.e. hard disk), which won't solve your problem. Also, Java 32bit on windows has a limit of about 1.5GB of heap size. In this case, setting it to more than 1500m or so is useless. On Linux the limit is 1.8GB (but I can't immediately find the page where I got that figure). If you have a 64bit processor, then you can go much beyond 2GB of heap. See: http://java.sun.com/docs/hotspot/HotSpotFAQ.html#gc_heap_32bit http://www.unixville.com/%7Emoazam/2004/06/03.html > >> --> In practice, yes. XMLmind XML Editor has been designed to edit >> topics (e.g. chapters, sections) and not huge documents. Two reasons >> for that: >> Let's say that with a reasonably modern machine, you should be able >> to edit a multi-hundred-page DocBook monolithic book containing a few >> dozens, low-resolution, images (e.g. screen shots). > > I do not edit DocBook, I edit a dictionary, with (at the moment) 20000 > "chapters" (i.e. lemma articles, file size 2,9 MB). I can split them > up in say, 4 documents (A-E, F-M, N-R, S-Z), or 2, or 20, but the > easiest way would be to just use one file. > > Now, even with my 2048m, I cannot load my 20000 lemma (1,2 MB), but I > can load 7000 lemma (another dictionary I have). > > So, would I be correct in assuming XMLEditor has a border of 1,5 MB > (or even less, the 1,2 file is a bit slow), beyond which I should not go? I've managed to edit 5MB files with XXE (for testing). It was almost usable, although scrolling was very slow. I would agree that 1.5MB is already large for XXE, but with a high-end 64bit computer and maybe 4GB of RAM, it should be workable. Hope this helps, Benoit > > Trond. > > > ---------------------------------------------------------------------- > > Trond Trosterud t +47 7764 4763 > > Institutt for spr?kvitskap, Det humanistiske fakultet m +47 950 70140 > > N-9037 Universitetet i Troms?, Noreg f +47 7764 5216 > > Trond.Trosterud (a) hum.uit.no http://www.hum.uit.no/a/trond/ > > ---------------------------------------------------------------------- > > > > > ------------------------------------------------------------------------ > > > -- > XMLmind XML Editor Support List > xmleditor-support at xmlmind.com > http://www.xmlmind.com/mailman/listinfo/xmleditor-support -- Benoit Maisonny benoit at synclude.com Director & Consultant http://synclude.com Synclude -- XMLmind XML Editor Support List xmleditor-support at xmlmind.com http://www.xmlmind.com/mailman/listinfo/xmleditor-support
