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  4. How much does "journalling enabled" affect sampl

  • How much does "journalling enabled" affect sampl

    S
    S
    Hi all,

    How much does "journalling enabled" affect sample-playback for programms such as Kontakt2 and EXS24?

    I have dedicated internal sata drives for samples, when I initialised these drives I did select "journalling"

    Does this affect DFD performance drastically?

    thanx,

    SvK
  • B
    B
    Someone here should know this- please chime in!
  • cmC
    VSL Team
    cmC
    svk, journaling is not helpfull on volumes used for audio, because it does what is says: journal changes of the content. this means everytime you delete or change a file, this action is *journaled* and needs the respective disk-space.
    i didn't go into details so far, but have not found a method to free this space up later without formatting the drive - obviously not the best way to do so.

    IMO enabeling *journaling* does only make sense on your system volume, because such formatted volumes (but only system volumes!) allow OSX to optimize the position of files on the harddisk (often used files are moved to the fastest sectors)

    needless to say write access to journaled volumes is slower, because changes have to be written too.
    christian
    and remember: only a CRAY can run an endless loop in just three seconds.
  • D
    D
    However Digidesign say: "Digidesign now recommends (4/18/2005) that customers format their media drives with journaling turned on. If you are using Apple's Disk Utility program to format drives, Digidesign recommends choosing "Mac OS Extended (Journaled)" format, instead of "Mac OS Extended". "

    I don't know why though....
  • cmC
    VSL Team
    cmC
    hmm ... they might have been confronted with a significant number of corrupted files after kernel panic or system freezes .... this could of course happen if such files were under write-access when the system died.
    for drives which are used to read data only (what ViennaInstruments data would be) i think it is another story.

    i simply tell you what i've noticed: a firewire disk uninentionally formatted journaled, then copied some exs-files on it. later copied updated files on it deleting the old ones before. i've been very astonished to find now not enough space on the disk although i've deleted the same amount i intended to copy now .... had to reformat the drive

    christian
    and remember: only a CRAY can run an endless loop in just three seconds.
  • A
    A
    ..it's possible to diabling "Journaling" without falling in a disaster ?
  • cmC
    VSL Team
    cmC
    we don't have any HFS+ formatted volumes here with journaling enabled (except some system volumes possibly where we havn't been attentive enough during installation)
    we had real crashes only on the office notebook so far - and this was a) when entourage database grew over 2 GB and b) the disk was near its end of life.
    christian
    and remember: only a CRAY can run an endless loop in just three seconds.
  • J
    J
    cm et al,

    I have successfully turned off journaling on an audio recording drive using a program called Cocktail. It's a utility that can be found at http://www.maintain.se/cocktail/
    I believe you can download and use it for free. To purchase it requires only $15.

    It's quite handy. I use it for overall Mac maintainance instead of the Apple Disk Utility. Besides repairing disk permissions and enabling/disabling journaling it run daily, weekly and monthly Unix cron scripts.

    A local Mac tech turned me on to it and it's been very helpful. I run it after each software install and it keeps my G5 quite happy - especially wonderful considering how much stuff is on it.
  • S
    S
    CM,

    This is all very helpful thanx [;)]

    Let me ask the question a different way.....

    Will "Journalling Enabled" affect polyphony count?


    SvK
  • cmC
    VSL Team
    cmC
    svk, assuming that the volume you're streaming the data from is not used simultaneously for writing (what should be so as a rule) - it should not.

    clearly i can't give you numbers from a practical comparision though. regarding performance journaling affects only write-acces - secondary *damage* because of fragmentation not considering.
    christian
    and remember: only a CRAY can run an endless loop in just three seconds.
  • N
    N
    last edited
    last edited

    @Another User said:

    for drives which are used to read data only (what ViennaInstruments data would be) i think it is another story


    That would have to be why Digidesign recommends it, no question. Not only are you recording in Pro Tools, you're creating little files all over the place every time you do a fade - never mind AudioSuite processing. That's a totally different application from streaming samples.