iTunes 10 CPU Usage During Sync

Discussion in 'Mac Apps and Mac App Store' started by jcuk, Jun 27, 2011.

  1. jcuk macrumors member

    Joined:
    Oct 5, 2009
    Location:
    Motherwell, Scotland.
    #1
    Hi Guys,

    I've recently just attempted to sync my iPod Touch 4G to iTunes 10 on my mac. This has resulted in an unusual amount of CPU activity and temps reaching 85-90 Deg C.

    I haven't experienced this previously and it seems to be since updating to the latest iTunes, heres the details:-

    OS: Mac OS X 10.6.8 (10K540)
    iTunes: 10.3.1
    Mac:
    MBP 13" (Mid 2009)
    2.23 C2D / 4GB DDR3 / 500GB HDD / 9400M GPU.

    iPod details:-
    Model: Touch 4G
    Capacity: 32GB
    Software: iOS 4.3.3

    Currently it's trying to sync around 230 newly imported songs and around 1000 newly imported photo's.

    The CPU time shows on activity monitor as averaging 177% CPU / 300 MB mem at the upper end and then rapidly jumping down to 120% CPU / 220MB mem for around 1/2 a second.

    The CPU time is fine when using iTunes to play media and even at the starting stage of the backup process & transferring purchased when connecting the iPod there are no problems.

    Sync Stage 4 of 5 is the part where it syncs music - despite this being USB2, it's rather slow too. Currently at 77/214 & total CPU time now at 30 minutes.

    Currently also running is transmission downloading at around 2.7MB/s, safari running idle with no flash - primarily text based only site, activity monitor and profiler.

    I'm unable to find anything by using search on the forums, despite searching itunes I recieved a plethora of unrelated results.

    Found limited other information on the web too.

    Attempts to resolve:
    Mac reboot - No Fix
    iTunes sync stop / sync start - No Fix
    Reinstall iTunes 10.3.1 from standalone - No Fix

    Has anyone else experienced this problem or have any suggestions on improving things?

    Cheers,
    Jamie
     
  2. davidg4781 macrumors 68000

    Joined:
    Oct 28, 2006
    Location:
    Alice, TX
    #2
    The only thing I can think of is maybe you have the box ticked for converting higher bit songs to 128kbs.

    I know it takes more time and uses more cycles on my CD MacBook, but nothing that really gets me worried. On my old PC...circa 2003, it takes a long longer to finish. Not sure about CPU cycles as I canceled and just synced normally.
     
  3. Salukipilot4590 macrumors 6502

    Salukipilot4590

    Joined:
    Mar 17, 2009
    Location:
    Los Angeles, CA
    #3
    I'm experiencing this now as we speak.

    I just did a complete update to 4.3.3 on my iPhone 4 and a restore etc....I have 1300 songs to sync. Each song has taken 3-5 seconds to transfer from my MBP to my phone when earlier today it took no more than 15 minutes when I had my first go with 4.3.3.

    What gives? How can it now take so long when the same process was so quick earlier today? (I admit I messed up with a JB and had to restore my phone a couple times)
     

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