itunes unbelievably slow accessing SMB shares

ok. iTunes 10 had this bug, iTunes 10.1 as well.
i'm hosting my music library on a WIndows 2008 R2 server. an >10k$ HP DL380 G7, by the way.

ever since i started using iTunes 10 all went to ****.
iTunes 10(.1) is unbelievably painstakingly annoyingly slow accessing my Windows SMB shares. no matter if its a wired or WIFI connection.

Finder works just as supposed. >100MB/s file copy performance over SMB all day long over a GbE.

importing an album to iTunes takes ages. iTunes is stuck at least for a minute PER SONG. "Processing Album Artwork" takes ages as well.

right now, to be able to sync my iPhone 4 with iTunes i have to use Windows 7 inside VMware Fusion on OS X.

help, anyone?

and no, its not my network, its not my MacBook, its just Apple. a boatload of other users has exactly the same problem.

this is really uber annoying. i so much hoped this would get fixed with the release iTunes 10.1.

MBP 15" Late 2009, Mac OS X (10.6.4)

Posted on Nov 13, 2010 10:04 AM

38 replies

buglis

Level 1

0 points

Jan 28, 2011 10:48 AM in response to J. Tuttle

Somebody tries with itunes 10.1.2??

spib

Level 1

0 points

Jan 28, 2011 2:30 PM in response to buglis

10.1.2 appears to have fixed this issue for me, no more freezing of the UI and I can sync my devices now with no issues

donerb

Level 1

0 points

Jan 28, 2011 6:49 PM in response to wad1029

wad1029 wrote:
I resolved the problem by enabling "oplocks" and turning off the iTunes built-in server. My performance increased dramatically!!!

After having the same issue with unacceptable SMB share performance, and an unusable iTunes collection, I tried two things tonight - upgrading to 10.1.1 and turning off oplocks in XP.

Not sure which one worked, but all is back to rights.

Turning off oplocks (I had to add the REG_DWORD entries, they were not present):
http://support.microsoft.com/kb/296264

Jan 29, 2011 2:08 AM in response to spib

new iTunes didn't improve the performance in my case... I contacted customer support of my NAS device and they suggest that the problem lies on the Windows Os. I'm fed up with this performance issue...

donerb

Level 1

0 points

Jan 29, 2011 7:24 AM in response to donerb

Sorry, I meant upgraded to 10.1.2 and turned off oplocks in XP.

Still rolling along this AM with no problems.

buglis

Level 1

0 points

Feb 2, 2011 3:18 AM in response to donerb

Fantastic, finally with itunes 10.1.2 the share with samba works very well!!

Feb 2, 2011 6:20 AM in response to buglis

really? For me it still does not work at all.

brianck

Level 1

0 points

Feb 18, 2011 4:08 AM in response to marc.garcia

I had been running 10.1.2 and accessing all of my music of an SMB share. It was awful. Then I DISABLED oplocks, setting HKLM/System/CurrentControlSet/Services/mrxsmb/Parameters/OplocksDisabled to 1 and HKLM/System/CurrentControlSet/Services/LanmanServer/Parameters/EnableOplocks to 0.

Now it is access the files without delay. Awesome. Definitely the oplocks.

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itunes unbelievably slow accessing SMB shares