Guest Posted September 21, 2005 Report Share Posted September 21, 2005 Hi. I had an idea for a new feature. Give an option to pre-allocate and zero files at the torrent's start, instead of using incremental file creation, which causes fragmentation of the file on the disk. I found something about it over on the Azureus wiki, dunno if it'd be of any help. I'm currently trying the beta of v1.1 (build 88 ), and like it alot. It runs in ALOT less memory (2552K) than my previous client (Azureus, which normally ran at over 60 Megs!).utorrent definatly is a good bittorrent client, and I plan on recommending it to my friends. Link to comment Share on other sites More sharing options...
ludde Posted September 21, 2005 Report Share Posted September 21, 2005 Thanks, good idea, i'm looking into it. Link to comment Share on other sites More sharing options...
Guest Posted September 25, 2005 Author Report Share Posted September 25, 2005 Hi,I use the lastest version of uTorrent (v 1.1.1-Dev)My preference is to disable (uncheck) the option "Pre-allocate Disk Space" => it's not ok because the space is allocate with zero bit file !I don"t want that, how i disable this option ?Thanks Link to comment Share on other sites More sharing options...
d1alautre Posted October 9, 2005 Report Share Posted October 9, 2005 not sure why you would not want to pre-allocate.this is a very good feature that lessens fragmentation, and makes sure you don't start too many files for your disk space w/o having to keep track of how much space left.it's in v1.1.3. But is it working ok? Not sure how to check. Link to comment Share on other sites More sharing options...
enkil Posted March 19, 2008 Report Share Posted March 19, 2008 I am sorry for bringing this thread back from its grave, but is there any update on a "pre-allocate and zero" functionality?And I mean the functionality azureus provides: Fill the whole file on the harddisk (or a network share) with zeros to avoid fragmentation.That's the only feature that's holding me back from switching from azureus to wine+µtorrent. Link to comment Share on other sites More sharing options...
jewelisheaven Posted March 19, 2008 Report Share Posted March 19, 2008 And what a resurrection it was. I don't see why you are doing this.With NTFS' ability for sparse files, it makes much more sense in a performance standpoint to apply pre-allocation with sparse files. Fragmentation increases as a disk becomes more-full however in many cases forcing contiguous files increases load on the hard drive due to continuous seeking. What's wrong with using sparse files? There has been talk of a defragment-when-done option but given the archaic nature of this thread... it could simply be deemed not a priority. Link to comment Share on other sites More sharing options...
DreadWingKnight Posted March 19, 2008 Report Share Posted March 19, 2008 wine+µtorrent.He's not on windows.As for the functionality, disable sparse files and compact allocation and enable preallocation. Link to comment Share on other sites More sharing options...
jewelisheaven Posted March 19, 2008 Report Share Posted March 19, 2008 Ah, i thought he was talking about taking a drink Do non-windows OSes understand sparse files through WINE? Link to comment Share on other sites More sharing options...
enkil Posted March 20, 2008 Report Share Posted March 20, 2008 I get the point of sparse files and most unix filesystems support sparse files. I think that it is supported through wine.Let's assume that I disable sparse files and compact allocation and use preallocation as suggested by DreadWingKnight.If µtorrents is preallocating let's say 1GiB in a contiguous region. As it downloads the actual data, are the chunks saved into the correct position in the file or are they saved "as they come in" - scattered throughout the file? Link to comment Share on other sites More sharing options...
DreadWingKnight Posted March 20, 2008 Report Share Posted March 20, 2008 placed in the correct order (which is why compact allocation is off) Link to comment Share on other sites More sharing options...
enkil Posted March 20, 2008 Report Share Posted March 20, 2008 Thanks for the clarification. I guess I don't need "fill with zeroes" after all then. Link to comment Share on other sites More sharing options...
jewelisheaven Posted March 20, 2008 Report Share Posted March 20, 2008 Hmm, if it supports sparse files outside windows now I think it's finally time for Fedora Link to comment Share on other sites More sharing options...
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