I see that there are a lot more "tech savy" people on this thread reporting the sluggish issues. I suggest we discuss this among ourselves and try to find the root cause of it without fanboyism or anti-fanboyism.
I understand this a community forums and those people are trying to help but they are just applying the "it worked for me so it should work for you. If it doesn't its your fault." logic.
I'm experiencing the same sluggish performance issues you guys are having. I have only 4GB of ram but _no_swap_at_all_ since Safari, Terminal and iTunes is basically everything I use. Poeple seem confused and point that I don't have enough memory but Mavericks requires at least 2GB. Memory pressure is around 30% or less.
I was always taught that a good OS will always use 100% of its RAM for cache. Unless Mavericks is that different from other Unix-like systems of course.
The disk I/O is also fine and SMART status is ok. Some people even suggested that I need an SSD to run Mavericks!
Another thing is that my computer has a very fresh clean install and absolutely no third party manually installed aside from those that come from the App Store. Not even Flash, MS Office, Java or X11. Nothing with the exception of Etrecheck and MPlayerX.
For starters let me post the Etrecheck Results. UNKNOWN is the Login item that mounts the shared home folder on Active Directory environment.
Hardware Information:
MacBook Pro (13-inch, Late 2011)
MacBook Pro - model: MacBookPro8,1
1 2.4 GHz Intel Core i5 CPU: 2 cores
4 GB RAM
Video Information:
Intel HD Graphics 3000 - VRAM: 384 MB
Audio Plug-ins:
BluetoothAudioPlugIn: Version: 1.0
AirPlay: Version: 1.9
AppleAVBAudio: Version: 2.0.0
iSightAudio: Version: 7.7.3
System Software:
OS X 10.9 (13A603) - Uptime: 0 days 16:54:33
Disk Information:
TOSHIBA MK5065GSXF disk0 : (500.11 GB)
EFI (disk0s1) <not mounted>: 209.7 MB
Macintosh HD (disk0s2) /: 499.25 GB (423.95 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
HL-DT-ST DVDRW GS31N
USB Information:
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
FireWire Information:
Thunderbolt Information:
Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
Launch Agents:
User Launch Agents:
User Login Items:
UNKNOWN
iTunesHelper
3rd Party Preference Panes:
None
Internet Plug-ins:
Default Browser.plugin
QuickTime Plugin.plugin
User Internet Plug-ins:
Bad Fonts:
None
Time Machine:
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 499.25 GB Disk used: 75.3 GB
Destinations:
bkp [Network] (Last used)
Total size: 536.53 GB
Total number of backups: 19
Oldest backup: 2013-10-30 22:40:51 +0000
Last backup: 2013-11-04 14:02:23 +0000
Size of backup disk: Adequate
Backup size 536.53 GB > (Disk used 75.3 GB X 3)
Top Processes by CPU:
4% automount
3% WindowServer
2% diskimages-helper
1% coreservicesd
1% umount
1% EtreCheck
0% mds_stores
0% SystemUIServer
0% diskarbitrationd
0% hidd
Top Processes by Memory:
184 MB Safari
106 MB softwareupdated
106 MB iTunes
74 MB WindowServer
66 MB com.apple.WebKit.WebContent
66 MB Mail
53 MB MPlayerX
49 MB Terminal
49 MB Preview
41 MB Finder
Virtual Memory Statistics:
166 MB Free RAM
1.41 GB Active RAM
1.17 GB Inactive RAM
984 MB Wired RAM
2.00 GB Page-ins
29 MB Page-outs
Anyway before appearing that I want to hijack the thread or something... I think the answer should be in the logs somewhere. For example, everytime I get an iTunes sound hiccup I see lots of errors related to "usbmuxd" related failures.