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Discussions

Elmer elmer I'm on my very last life.
  • How do you manage "many" files? ( harddrive structure discussion )

    exoteric said:
    W3bbo said:
    *snip*

    One could persist the file system index on a system partition on a separate solid state disk to mitigate the issue. I imagine one could perhaps also use the cache of a hybrid disk to maintain the index.

     

    The problem with organizing files and with tree-structured file systems is that often files do not naturally fall into a single category, so what is needed is a graph-structured layout. On the other hand, few people want to maintain a graph-structured layout manually. It's just too much work.

     

    The new Semantic Engine that Microsoft presented at the last PDC looks like an attempt to solve this issue by having an engine that applies machine learning techniques to automatically index files - both textual and binary, such as images and audio. It'll be interesting to see how easily extensible it is. It could be one hell of a replacement for ifilters. There's so many interesting types of files that are not indexed currently.

    I thought that WinFS was the attempt to manage this... essentially a relational view of the underlaying NTFS attributes.

  • How do you manage "many" files? ( harddrive structure discussion )

    mstefan said:
    elmer said:
    *snip*

    I'm not sure about XP and earlier (don't recall offhand, and I'm too lazy to go boot XP), but Vista and Win7 will automagically run scheduled defrags in the background. IIRC, one caveat is that you can't defrag the MFT when the volume is in use, it has to be done at boot time (similar to a disk check/repair).

    There are automated defrag utilities (diskeeper for example) that monitor the MFT and Pagefile to defrag them while the volume is in use.

  • How do you manage "many" files? ( harddrive structure discussion )

    rhm said:
    Sven Groot said:
    *snip*

    NTFS uses b-trees for it's directory structure - you should be able to put millions of files in a single directory without the time to open a single named file increasing significantly. Of course Windows Explorer will become slow and use a lot of memory and don't even think about sharing that many files over SMB. But NTFS itself is fine with it.

    Yes, because of the way the MFT works, max files per volume and max files per folder are the same thing, and how you organise them should make little or no difference to performance of NTFS.

     

    http://technet.microsoft.com/en-us/library/cc781134(WS.10).aspx">http://technet.microsoft.com/en-us/library/cc781134(WS.10).aspx

     

    To a file server handling requests, it's probably much of a muchness... but, of course, Windows Explorer viewing a folder with 2^32 files, might a different matter Wink

     

    Large volumes and/or folders can suffer from mft/folder/file fragmentation, and so I find that it's often good practice to archive rarely used files to separate volumes, rather than mixing rarely acessed files with frequently accessed files... unless you want to use an automated defrag ultility.

  • Jobs rolls out the iPhone 4

    W3bbo said:

    The 326dpi display is what made me proclaim out loud "wow", I didn't know that level of resolution was possible using IPS panels.

     

    I will say that I'm not fond of the design of this unit: it looks too much like the handheld battery-powered Braun shavers of the 1970s and 80s that were black plastic with various metal bits sticking out, invariably becoming greasy and yucky over time. It wouldn't surprise me if this non-flush design went the same way.

     

    I would be interested in buying this product to replace my PDA and mobile phone, and I was all set before Steve announced that 32GB is the capacity maximum for this generation. It's the first time they haven't announced a doubling of capacity. I guess I'll have to wait until next year for the 64GB version, but by then my music collection might be more than that (I've got 54GB right now).

    it looks too much like the handheld battery-powered Braun shavers of the 1970s and 80s

     

    Now, if it doubled as a shaver, I might be tempted... that'd be a feature I could actually use.

     

    iShave... there's an app for that! - use the camera on those "difficult to see" places, as you mow them down... zoom right in on those pesky nostril hairs.

  • Jobs rolls out the iPhone 4

    Sven Groot said:

    Hmm, I'm not sure about the design. It feels very retro-80s to me. I think I prefer the rounded design of the current models.

     

    Those screen specs are enough to make me salivate though. Not that I'll be getting one (or any new phone) in the forseeable future, but anyway.

    They are apparently designed to accept a wrap-around edge protector (that comes in various colours) which then gives it the more rounded look of the current model.

     

    I wouldn't buy one, mainly because it's massively excessive to my needs (I simply need a phone) and because I refuse to buy anything Apple... but it's interesting nonetheless.

  • Jobs rolls out the iPhone 4

    iOS  ?

     

    I wonder if Cisco is going to object to that.

  • oil spill / MS help?

    Ballmer: “Microsoft is pleased to commit our entire Windows mobile division, to scraping oil off the beaches...”.

  • oil spill / MS help?

    KFC, McDonalds, et-al... I reckon if they gave away free meals, their patrons could have that leak clogged up in no time.

  • oil spill / MS help?

    giovanni said:
    Ion Todirel said:
    *snip*

    I would love to park mine and never have to drive it again, but I am afraid it will take a lot more than 500 millions to make up for railroads we abandoned in favor of highways.

     

    Jukes aside, I am afraid this will be a necessary step, yet a very hard one to take if we want to minimize our need for oil.

    Public transport inrfastructue is an important part of the solution, but it's going to take a lot more than that.

     

    City planning that has encouraged urban sprawl and located services (e.g. supermarkets & shopping malls) on the assumption of motor vehicle access, will be diffiicult to resolve without some mode of personal transport.

     

    Personally, I choose a bicycle for my personal transport, but I doubt that would work for enough people in a car-dependant city.

  • Is the iPad any good?

    Ray7 said:
    joechung said:
    *snip*

    The problem is this site , not the iPad. The posting here is pretty flakey even on a good day.

    Actually, this appears to be a known issue for the editor this site uses.

     

    Most web rich-text editors use an editable iframe and rely a rich-text editing-engine being available for the browser.

     

    Unfortunately, it appears that the version of Safari on the iPad does not provide such an editor engine... and that stops the rich-text control dead in its tracks.

     

    I know of a number of other rich-text web-controls that have the same issue with Safari on the iPad, even though they work on the Mac, PC even iPhone versions of Safari.

     

    Usually the work-around is to detect the iPad Safari agent string and replace the rich-text editor with a plain text-area control.