iTunes 10 CPU Usage During Sync

[jcuk]

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

 

[davidg4781]

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.

 

[Salukipilot4590]

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)