16GB of RAM? Can I?

Hello all,
My Macbook Pro is very slow when I have many apps and programs open. This is because it only has 4GB RAM, I am wondering if I can upgrade it and expand its memory to 16GB, now my question is the following:
How Do I know that my Macbook Pro can be upgraded to 16GB RAM?
I purchased it in March, 2012 so its relatively a new laptop.
Also, Will the macstore install the memory sticks if I provide them? How much would it be?
Thanks!

If it's a late 2011 model (which mine is - I, too, purchased mine in March of this year) then, yes, you can upgrade to 16GB of RAM. Other World Computing - mentioned by the other posters - is a good place to order from. But I would first recommend visiting the Crucial website and clicking on the System Scanner tab; this will let you know your model and your upgrade options.
8GB of RAM is the sweet spot but I find that I actually 'use' up to 13GB sometimes.
Clinton

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    Process:         iPhoto [10203]
    Path:            /Applications/iPhoto.app/Contents/MacOS/iPhoto
    Identifier:      com.apple.iPhoto
    Version:         9.4.1 (9.4.1)
    Build Info:      iPhotoProject-701067000000000~9
    Code Type:       X86 (Native)
    Parent Process:  launchd [148]
    Date/Time:       2012-10-22 16:39:11.027 -0400
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    Report Version:  9
    Interval Since Last Report:          13614 sec
    Crashes Since Last Report:           4
    Per-App Interval Since Last Report:  4740 sec
    Per-App Crashes Since Last Report:   4
    Anonymous UUID:                      C67B0E88-D09B-45BB-A7F8-8581E9FFA239
    Crashed Thread:  16  Import thread 1
    Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
    Exception Codes: KERN_INVALID_ADDRESS at 0x00000000001d0ab2
    VM Regions Near 0x1d0ab2:
        VM_ALLOCATE            0000000000002000-0000000000004000 [    8K] rw-/rwx SM=PRV 
    -->
        mapped file            0000000004458000-0000000004473000 [  108K] r--/rwx SM=COW  /Applications/iPhoto.app/Contents/Resources/Fonts/Marion Regular.ttf
    Application Specific Information:
    objc[10203]: garbage collection is OFF
    Thread 0:: Dispatch queue: com.apple.main-thread
    0   libsystem_kernel.dylib                  0x92c0cc22 mach_msg_trap + 10
    1   libsystem_kernel.dylib                  0x92c0c1f6 mach_msg + 70
    2   com.apple.CoreFoundation                0x9c2929da __CFRunLoopServiceMachPort + 170
    3   com.apple.CoreFoundation                0x9c29bb04 __CFRunLoopRun + 1428
    4   com.apple.CoreFoundation                0x9c29b1dc CFRunLoopRunSpecific + 332
    5   com.apple.CoreFoundation                0x9c29b088 CFRunLoopRunInMode + 120
    6   com.apple.HIToolbox                     0x94154543 RunCurrentEventLoopInMode + 318
    7   com.apple.HIToolbox                     0x9415b8ab ReceiveNextEventCommon + 381
    8   com.apple.HIToolbox                     0x9415b71a BlockUntilNextEventMatchingListInMode + 88
    9   com.apple.AppKit                        0x96424ee8 _DPSNextEvent + 678
    10  com.apple.AppKit                        0x96424752 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 113
    11  com.apple.AppKit                        0x96420ac1 -[NSApplication run] + 911
    12  com.apple.AppKit                        0x966b1ac5 NSApplicationMain + 1054
    13  ???                                     0x000bc8f9 0 + 772345
    14  ???                                     0x000bbf45 0 + 769861
    Thread 1:: Dispatch queue: com.apple.libdispatch-manager
    0   libsystem_kernel.dylib                  0x92c0eb5e __select_nocancel + 10
    1   libdispatch.dylib                       0x97cb4cbd _dispatch_mgr_invoke + 642
    2   libdispatch.dylib                       0x97cb3853 _dispatch_mgr_thread + 53
    Thread 2:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01da0072 0 + 31064178
    7   ???                                     0x01d9f15a 0 + 31060314
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 3:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01da0072 0 + 31064178
    7   ???                                     0x01d9f15a 0 + 31060314
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 4:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01da0072 0 + 31064178
    7   ???                                     0x01d9f15a 0 + 31060314
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 5:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01da0072 0 + 31064178
    7   ???                                     0x01d9f15a 0 + 31060314
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 6:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01da0072 0 + 31064178
    7   ???                                     0x01d9f15a 0 + 31060314
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 7:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01da0072 0 + 31064178
    7   ???                                     0x01d9f15a 0 + 31060314
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 8:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01da0072 0 + 31064178
    7   ???                                     0x01d9f15a 0 + 31060314
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 9:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x023dafcf 0 + 37597135
    7   com.apple.CoreFoundation                0x9c3031aa -[NSObject performSelector:] + 58
    8   ???                                     0x01da9059 0 + 31101017
    9   com.apple.CoreFoundation                0x9c2fad11 -[NSObject performSelector:withObject:] + 65
    10  ???                                     0x01da148c 0 + 31069324
    11  ???                                     0x01da0d4f 0 + 31067471
    12  ???                                     0x01da0573 0 + 31065459
    13  ???                                     0x01d9f170 0 + 31060336
    14  com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    15  com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    16  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    17  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 10:: com.apple.NSURLConnectionLoader
    0   libsystem_kernel.dylib                  0x92c0cc22 mach_msg_trap + 10
    1   libsystem_kernel.dylib                  0x92c0c1f6 mach_msg + 70
    2   com.apple.CoreFoundation                0x9c2929da __CFRunLoopServiceMachPort + 170
    3   com.apple.CoreFoundation                0x9c29bb04 __CFRunLoopRun + 1428
    4   com.apple.CoreFoundation                0x9c29b1dc CFRunLoopRunSpecific + 332
    5   com.apple.CoreFoundation                0x9c29b088 CFRunLoopRunInMode + 120
    6   com.apple.Foundation                    0x923c90c4 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 378
    7   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    8   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    9   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    10  libsystem_c.dylib                       0x998596de thread_start + 34

    Did some poking around and i think its a corrupted photo... thanks
    Process:         iPhoto [10844]
    Path:            /Applications/iPhoto.app/Contents/MacOS/iPhoto
    Identifier:      com.apple.iPhoto
    Version:         9.4.1 (9.4.1)
    Build Info:      iPhotoProject-701067000000000~9
    Code Type:       X86 (Native)
    Parent Process:  launchd [148]
    Date/Time:       2012-10-22 19:33:36.859 -0400
    OS Version:      Mac OS X 10.7.5 (11G63)
    Report Version:  9
    Interval Since Last Report:          16108 sec
    Crashes Since Last Report:           7
    Per-App Interval Since Last Report:  5131 sec
    Per-App Crashes Since Last Report:   7
    Anonymous UUID:                      C67B0E88-D09B-45BB-A7F8-8581E9FFA239
    Crashed Thread:  28  Import thread 2
    Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
    Exception Codes: KERN_INVALID_ADDRESS at 0x00000000001b4ab2
    VM Regions Near 0x1b4ab2:
        VM_ALLOCATE            0000000000002000-0000000000004000 [    8K] rw-/rwx SM=PRV 
    -->
        mapped file            0000000004458000-0000000004468000 [   64K] r--/rwx SM=COW  /Applications/iPhoto.app/Contents/Resources/Fonts/Marion Regular.ttf
    Application Specific Information:
    objc[10844]: garbage collection is OFF
    Thread 0:: Dispatch queue: com.apple.main-thread
    0   libsystem_kernel.dylib                  0x92c0cc22 mach_msg_trap + 10
    1   libsystem_kernel.dylib                  0x92c0c1f6 mach_msg + 70
    2   com.apple.CoreFoundation                0x9c2929da __CFRunLoopServiceMachPort + 170
    3   com.apple.CoreFoundation                0x9c29bb04 __CFRunLoopRun + 1428
    4   com.apple.CoreFoundation                0x9c29b1dc CFRunLoopRunSpecific + 332
    5   com.apple.CoreFoundation                0x9c29b088 CFRunLoopRunInMode + 120
    6   com.apple.HIToolbox                     0x94154543 RunCurrentEventLoopInMode + 318
    7   com.apple.HIToolbox                     0x9415b8ab ReceiveNextEventCommon + 381
    8   com.apple.HIToolbox                     0x9415b71a BlockUntilNextEventMatchingListInMode + 88
    9   com.apple.AppKit                        0x96424ee8 _DPSNextEvent + 678
    10  com.apple.AppKit                        0x96424752 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 113
    11  com.apple.AppKit                        0x96420ac1 -[NSApplication run] + 911
    12  com.apple.AppKit                        0x966b1ac5 NSApplicationMain + 1054
    13  ???                                     0x000a08f9 0 + 657657
    14  ???                                     0x0009ff45 0 + 655173
    Thread 1:: Dispatch queue: com.apple.libdispatch-manager
    0   libsystem_kernel.dylib                  0x92c0eb5e __select_nocancel + 10
    1   libdispatch.dylib                       0x97cb4cbd _dispatch_mgr_invoke + 642
    2   libdispatch.dylib                       0x97cb3853 _dispatch_mgr_thread + 53
    Thread 2:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01d88072 0 + 30965874
    7   ???                                     0x01d8715a 0 + 30962010
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 3:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01d88072 0 + 30965874
    7   ???                                     0x01d8715a 0 + 30962010
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 4:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01d88072 0 + 30965874
    7   ???                                     0x01d8715a 0 + 30962010
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 5:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01d88072 0 + 30965874
    7   ???                                     0x01d8715a 0 + 30962010
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 6:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01d88072 0 + 30965874
    7   ???                                     0x01d8715a 0 + 30962010
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 7:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01d88072 0 + 30965874
    7   ???                                     0x01d8715a 0 + 30962010
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 8:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01d88072 0 + 30965874
    7   ???                                     0x01d8715a 0 + 30962010
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 9:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x023c2fcf 0 + 37498831
    7   com.apple.CoreFoundation                0x9c3031aa -[NSObject performSelector:] + 58
    8   ???                                     0x01d91059 0 + 31002713
    9   com.apple.CoreFoundation                0x9c2fad11 -[NSObject performSelector:withObject:] + 65
    10  ???                                     0x01d8948c 0 + 30971020
    11  ???                                     0x01d88d4f 0 + 30969167
    12  ???                                     0x01d88573 0 + 30967155
    13  ???                                     0x01d87170 0 + 30962032
    14  com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    15  com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    16  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    17  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 10:: com.apple.NSURLConnectionLoader
    0   libsystem_kernel.dylib                  0x92c0cc22 mach_msg_trap + 10
    1   libsystem_kernel.dylib                  0x92c0c1f6 mach_msg + 70
    2   com.apple.CoreFoundation                0x9c2929da __CFRunLoopServiceMachPort + 170
    3   com.apple.CoreFoundation                0x9c29bb04 __CFRunLoopRun + 1428
    4   com.apple.CoreFoundation                0x9c29b1dc CFRunLoopRunSpecific + 332
    5   com.apple.CoreFoundation                0x9c29b088 CFRunLoopRunInMode + 120
    6   com.apple.Foundation                    0x923c90c4 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 378
    7   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    8   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    9   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    10  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 11:: com.apple.CFSocket.private
    0   libsystem_kernel.dylib                  0x92c0eb42 __select + 10
    1   com.apple.CoreFoundation                0x9c2e9e15 __CFSocketManager + 1557
    2   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    3   libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 12:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e21 _pthread_cond_wait + 827
    2   libsystem_c.dylib                       0x9980a42c pthread_cond_wait$UNIX2003 + 71
    3   com.apple.Foundation                    0x923bebe8 -[NSCondition wait] + 304
    4   ???                                     0x000e2454 0 + 926804
    5   ???                                     0x000e2062 0 + 925794
    6   com.apple.CoreFoundation                0x9c2fda9d __invoking___ + 29
    7   com.apple.CoreFoundation                0x9c2fd9d9 -[NSInvocation invoke] + 137
    8   ???                                     0x023df6ab 0 + 37615275
    9   ???                                     0x023f0474 0 + 37684340
    10  com.apple.CoreFoundation                0x9c2fad11 -[NSObject performSelector:withObject:] + 65
    11  ???                                     0x01d91059 0 + 31002713
    12  com.apple.CoreFoundation                0x9c2fad11 -[NSObject performSelector:withObject:] + 65
    13  ???                                     0x01d8948c 0 + 30971020
    14  ???                                     0x01d88d4f 0 + 30969167
    15  ???                                     0x01d88573 0 + 30967155
    16  ???                                     0x01d87170 0 + 30962032
    17  com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    18  com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    19  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    20  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 13:: jpegdecompress_MPLoop
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x9980182a pthread_cond_wait + 48
    3   com.apple.QuickTimeComponents.component          0x90bd1467 0x904c2000 + 7402599
    4   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    5   libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 14:: jpegdecompress_MPLoop
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x9980182a pthread_cond_wait + 48
    3   com.apple.QuickTimeComponents.component          0x90bd1467 0x904c2000 + 7402599
    4   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    5   libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 15:: jpegdecompress_MPLoop
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x9980182a pthread_cond_wait + 48
    3   com.apple.QuickTimeComponents.component          0x90bd1467 0x904c2000 + 7402599
    4   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    5   libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 16:
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.Foundation                    0x923ef3c3 -[NSCondition waitUntilDate:] + 427
    4   com.apple.Foundation                    0x923b57d2 -[NSConditionLock lockWhenCondition:beforeDate:] + 294
    5   com.apple.Foundation                    0x923b56a6 -[NSConditionLock lockWhenCondition:] + 69
    6   ???                                     0x01d88072 0 + 30965874
    7   ???                                     0x01d8715a 0 + 30962010
    8   com.apple.Foundation                    0x923bce25 -[NSThread main] + 45
    9   com.apple.Foundation                    0x923bcdd5 __NSThread__main__ + 1582
    10  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    11  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 17:
    0   libsystem_kernel.dylib                  0x92c0f02e __workq_kernreturn + 10
    1   libsystem_c.dylib                       0x99857ccf _pthread_wqthread + 773
    2   libsystem_c.dylib                       0x998596fe start_wqthread + 30
    Thread 18:: Dispatch queue: com.apple.root.low-overcommit-priority
    0   cl_kernels                              0x15c31698 GaborFiltersToSmoothedLuminanceAndGradient_wrapper + 17112
    1   libcldcpuengine.dylib                   0x0476cd5f 0x4769000 + 15711
    2   libdispatch.dylib                       0x97cb6e93 _dispatch_apply2 + 62
    3   libdispatch.dylib                       0x97cb401c _dispatch_worker_thread2 + 231
    4   libsystem_c.dylib                       0x99857b24 _pthread_wqthread + 346
    5   libsystem_c.dylib                       0x998596fe start_wqthread + 30
    Thread 19:
    0   libsystem_kernel.dylib                  0x92c0f02e __workq_kernreturn + 10
    1   libsystem_c.dylib                       0x99857ccf _pthread_wqthread + 773
    2   libsystem_c.dylib                       0x998596fe start_wqthread + 30
    Thread 20:
    0   libsystem_c.dylib                       0x99857b43 _pthread_wqthread + 377
    1   libsystem_c.dylib                       0x998596fe start_wqthread + 30
    Thread 21:: Dispatch queue: com.apple.root.low-overcommit-priority
    0   cl_kernels                              0x15c2db0a GaborFiltersToSmoothedLuminanceAndGradient_wrapper + 1866
    1   libcldcpuengine.dylib                   0x0476cd5f 0x4769000 + 15711
    2   libdispatch.dylib                       0x97cb6e93 _dispatch_apply2 + 62
    3   libdispatch.dylib                       0x97cb6dfb dispatch_apply_f + 360
    4   libcldcpuengine.dylib                   0x0476cac4 0x4769000 + 15044
    5   libdispatch.dylib                       0x97cb4943 _dispatch_queue_drain + 224
    6   libdispatch.dylib                       0x97cb47e8 _dispatch_queue_invoke + 47
    7   libdispatch.dylib                       0x97cb3ff0 _dispatch_worker_thread2 + 187
    8   libsystem_c.dylib                       0x99857b24 _pthread_wqthread + 346
    9   libsystem_c.dylib                       0x998596fe start_wqthread + 30
    Thread 22:
    0   libsystem_kernel.dylib                  0x92c0f02e __workq_kernreturn + 10
    1   libsystem_c.dylib                       0x99857ccf _pthread_wqthread + 773
    2   libsystem_c.dylib                       0x998596fe start_wqthread + 30
    Thread 23:
    0   libsystem_kernel.dylib                  0x92c0f02e __workq_kernreturn + 10
    1   libsystem_c.dylib                       0x99857ccf _pthread_wqthread + 773
    2   libsystem_c.dylib                       0x998596fe start_wqthread + 30
    Thread 24:: Dispatch queue: com.apple.root.low-overcommit-priority
    0   cl_kernels                              0x15c31888 GaborFiltersToSmoothedLuminanceAndGradient_wrapper + 17608
    1   libcldcpuengine.dylib                   0x0476cd5f 0x4769000 + 15711
    2   libdispatch.dylib                       0x97cb6e93 _dispatch_apply2 + 62
    3   libdispatch.dylib                       0x97cb401c _dispatch_worker_thread2 + 231
    4   libsystem_c.dylib                       0x99857b24 _pthread_wqthread + 346
    5   libsystem_c.dylib                       0x998596fe start_wqthread + 30
    Thread 25:: CVDisplayLink
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e78 _pthread_cond_wait + 914
    2   libsystem_c.dylib                       0x99859f7b pthread_cond_timedwait_relative_np + 47
    3   com.apple.CoreVideo                     0x95d44e8c CVDisplayLink::waitUntil(unsigned long long) + 306
    4   com.apple.CoreVideo                     0x95d43fde CVDisplayLink::runIOThread() + 706
    5   com.apple.CoreVideo                     0x95d43d05 _ZL13startIOThreadPv + 160
    6   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    7   libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 26:: Import thread 0  Dispatch queue: opencl_runtime
    0   libsystem_kernel.dylib                  0x92c0cc5e semaphore_wait_trap + 10
    1   libdispatch.dylib                       0x97cb64d8 _dispatch_thread_semaphore_wait + 25
    2   libdispatch.dylib                       0x97cb561c _dispatch_barrier_sync_f_slow + 121
    3   libdispatch.dylib                       0x97cb5730 dispatch_barrier_sync_f + 37
    4   libcldcpuengine.dylib                   0x0476c422 glrCompFinish + 48
    5   com.apple.opencl                        0x944e4614 0x944bc000 + 165396
    6   com.apple.opencl                        0x944dce8b 0x944bc000 + 134795
    7   libdispatch.dylib                       0x97cb5679 _dispatch_barrier_sync_f_slow + 214
    8   libdispatch.dylib                       0x97cb5730 dispatch_barrier_sync_f + 37
    9   com.apple.opencl                        0x944dcf6a clFinish + 123
    10  com.apple.RawCamera.bundle              0x9cdee9e8 0x9cbfb000 + 2046440
    11  com.apple.RawCamera.bundle              0x9cde90cf 0x9cbfb000 + 2023631
    12  com.apple.RawCamera.bundle              0x9cdf11ce 0x9cbfb000 + 2056654
    13  com.apple.RawCamera.bundle              0x9cdc2e61 0x9cbfb000 + 1867361
    14  com.apple.RawCamera.bundle              0x9cdc1e1f 0x9cbfb000 + 1863199
    15  com.apple.RawCamera.bundle              0x9cd743d5 0x9cbfb000 + 1545173
    16  com.apple.RawCamera.bundle              0x9cd73d56 0x9cbfb000 + 1543510
    17  com.apple.RawCamera.bundle              0x9cc24f5a 0x9cbfb000 + 171866
    18  com.apple.RawCamera.bundle              0x9cc22e29 0x9cbfb000 + 163369
    19  com.apple.ImageIO.framework             0x9972c456 ImageProviderCopyImageBlockSetCallback + 440
    20  com.apple.CoreGraphics                  0x95392d98 CGImageProviderCopyImageBlockSetWithOptions + 173
    21  com.apple.CoreGraphics                  0x95392ce5 CGImageProviderCopyImageBlockSet + 69
    22  com.apple.CoreGraphics                  0x95392848 img_blocks_create + 332
    23  com.apple.CoreGraphics                  0x9530801e img_data_lock + 2424
    24  com.apple.CoreGraphics                  0x95391c5c CGSImageDataLock + 165
    25  libRIP.A.dylib                          0x9133e61d ripc_AcquireImage + 1901
    26  libRIP.A.dylib                          0x9133ce6f ripc_DrawImage + 951
    27  com.apple.CoreGraphics                  0x95391855 CGContextDrawImage + 457
    28  ???                                     0x006aab43 0 + 6990659
    29  ???                                     0x006aa2fd 0 + 6988541
    30  ???                                     0x006a80d8 0 + 6979800
    31  ???                                     0x001afb36 0 + 1768246
    32  ???                                     0x001aefad 0 + 1765293
    33  libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    34  libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 27:: Import thread 1
    0   libsystem_kernel.dylib                  0x92c0e83e __psynch_cvwait + 10
    1   libsystem_c.dylib                       0x99859e21 _pthread_cond_wait + 827
    2   libsystem_c.dylib                       0x9980a42c pthread_cond_wait$UNIX2003 + 71
    3   ???                                     0x006b1b4f 0 + 7019343
    4   ???                                     0x006b0fbe 0 + 7016382
    5   ???                                     0x001af1b8 0 + 1765816
    6   ???                                     0x001aefad 0 + 1765293
    7   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    8   libsystem_c.dylib                       0x998596de thread_start + 34
    Thread 28 Crashed:: Import thread 2
    0   ???                                     0x001b4ab2 0 + 1788594
    1   libobjc.A.dylib                         0x9a38a54e _objc_rootRelease + 47
    2   ???                                     0x006a80ee 0 + 6979822
    3   ???                                     0x001afb36 0 + 1768246
    4   ???                                     0x001aefad 0 + 1765293
    5   libsystem_c.dylib                       0x99855ed9 _pthread_start + 335
    6   libsystem_c.dylib                       0x998596de thread_start + 34

  • How much RAM can I install in my Macbook Pro?

    I have a late 2011 model Macbook Pro. It is a 13 inch with 2.8 Ghz Intel i7 duo core processor and 4 GB (2 x 2) RAM. Can I upgrade to 16 GB (2 x 8) RAM?

    Installing RAM in a 2011-2012 MacBook Pro
    There is really only one way to install RAM into a 2011-2012 MacBook Pro and while there are hundreds of DIY videos online, I just like this one, found on YouTube, by “macmixing”.
    Note that there is a difference in the RAM that should be used in 2011 and 2012 models.
    2011 models must use:
    •204-pin PC-10600 (1333 MHz) DDR3 SO-DIMM
    And 2012 models must use:
    •204-pin PC3-12800 (1600 MHz) DDR3 SO-DIMM
    So here's the video:
    Remember that the 13", 15" and 17" 2011 models (early or late) and the 13" and 15" mid-2012 non-Retina models can handle 4GB, 8GB or (unofficially, but, believe me, it works) 16GB of RAM. There are, in my opinion, only three 100% Mac-compatible vendors out there: Corsair, Crucial and OWC. I really can't recommend any other brands, even though it may work, as these are the only brands that I've personally used in quite a while. Also remember to stay away from any RAM that is a “value” brand - Macs are picky about RAM and often these value RAM modules just don’t work very well.
    Good luck,
    Clinton

  • 16gb of ram on hd 3000 gpu

    I noticed the Intel HD 3000 GPU scales to 512mb of vram when 8gb is being used, does it scale higher when 16gbs are installed via owc?  Is the 16gb of ram going to help the mac mini server encode video faster, or should 8gb be fine?  I intend to go all out with a Promise R6 (or another high end thunderbolt drive) and I am updating from a late 2009 mac mini with 8gbs of ram in order to get sata 3, a 7200rpm drive, and thunderport options. 

    Watch this video, the RAM is in there pretty tight. You should use both your thumbs to get some leverage, if you still can't get them out take the machine into an Apple Store or AASP either will be happy to help.
    http://eshop.macsales.com/installvideos/imac_late_2009_mem_m/
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  • How many GB of Ram can G500 support?

    Hi.
    I have a G500 with a 4gb of ram and I want to install the maximum that this laptop can support.
    After searching on the Net I saw here: 
    http://shop.lenovo.com/us/en/laptops/lenovo/g-series/g500/#techspecs
    saying:   Up to 8GB PC3-12800 DDR3 SDRAM 1600 MHz
    On  the other hand here: 
    http://shop.lenovo.com/gr/el/laptops/lenovo/g-series/g500/#tab-Τεχνικές_Προδιαγραφές
    says: 
    DDR3 έως 16 GB 1.600 Mhz (υποστήριξη δύο καναλιών) [2 υποδοχές SODIMM (1x 2 GB / 2x 2 GB / 1x 4 GB / 1x 2 GB + 1x 4 GB / 2x 4 GB / 1x 8 GB / 2x 8 GB)
    meaning that you can put 2 * 8 GB = 16GB maximum.
    Can anybody please inform me (with a site please) what is the right one? 8GB (2*4GB) or 16GB (2*8GB)?
    Thank you.
    Solved!
    Go to Solution.

    My 4Gb memory (one module) is 11 11 11 28.
    Can I put a two modules 8+8=16GB of 9 9 9 24?
    I have read  """"""The lower this is (tRas), the faster the performance, but if it is set too low, it can cause data corruption by deactivating the row too soon.""""""῾.
    Is there a possibility that the new memory modules are not good for the g500 I have?
    If anybody can help i would appreciate it.
    I dont want to spent 150Euros and then discover that the memory modules are not good
    I had put in a previous message a module I was thinking to buy but they cancelled my message. 

  • Will Windows 7 Pro run with 16GB of Ram in Macbook Pro Early 2011 13-inch?

    Will Windows 7 Pro run with 16GB of Ram in Macbook Pro Early 2011 13-inch?, Does the brand of the Ram matter ?
    I installed Crucial 16 gb and the Mac runs just fine but Windows won't start. It gets to the login screen then it turns white.

    I decided to make another try today after some reading and googling the internet.
    I started windows with my old 4GB memory and changed the bootconfiguration with msconfig. I typed manually in max memory tp 16384 MB and saved the settings. Then I turned it off and inserted the 16GB ram again. Then it started really but when looking at the properties of my computer it says 16 GB installed but I can only use 2,16GB. So I opened msconfig again and changed the settings once more and restarted. Now it says 16GB installed but I can use 14,2GB so I guess it is ok now for some strange reason. I suppose the lost 1,8GB is for the system ?? Do I dare to turn it off again :-) what will it say next time ?
    I am so happy and greatful for all your help, I really really appreciate it and I hope my solution will come to use for someone else with same problem.
    Thank You all :-)

  • Do i need an SSD in order to upgrade to 16gb of RAM upgrade????

    Hey there,
    I've been the proud owner of an MBP 15.4" late 2011. I have already upgraded my RAM to 8gb (2X4gb) but I continue to hit some bottle necking when working on projects.
    I am a free lance web developer, which means I have illustrator and photoshop windows open, plus a FTP client (cyber duck) and text wrangler, plus a browser. I try to minimize my programs to only what I need, but I still experience sluggish haults when I run anything in conjunction.
    I'm thinking of upgrading to 16gb of RAM, but I wanted to know if I need and ssd to do that? Will 16gb work without an ssd? I have just the stock HDD (750gb) right now.
    I also have a day job as a networking engineer, so I run multiple VMs at once, which chokes my mbp with the current RAM available.
    I don't want to do an ssd right now, but I will down the line when the prices are more reasonable. I would like to just upgrade the RAM first if its effective.
    Thanks in advance for your feedback.
    Rich

    No. You don't need an SSD to upgrade your RAM. Here's what you can install:
    Maximum Memory
    16 GB (Actual) 8 GB (Apple)
    Memory Slots
    2 - 204-pin PC-10600 (1333 MHz) DDR3 SO-DIMM
    You will find suitable RAM at OWC or DataMem.

  • How much RAM can be installed on a MacPro4.1?

    How much RAM can be installed on a MacPro4.1?

    physically 8 x 16GB, addressable in 10.8.3 is 96GB
    you still on snow leopard? you can also use that.
    6 x 8GB is probably more or as much as you need and try www.macsales.com/memory for kits

  • Will 16GB of RAM really increase my speed?

    Hello, all you MacBook Pro fanatics!
    I have a late 2011 MacBook Pro with 8 GB of RAM installed - I bought the Corsair memory from Amazon for under $50 and installed it myself.
    Amazon now has a 16GB kit fro Corsair for only $100 - the least expensive price I've found. The only RAM intensive app I really run is Photoshop CS6, but I do keep a lot of apps open at one time (Acrobat Pro X, Outlook, InDesign CS6, Illustrator CS6, Word, Parallels running XP, iTunes at the moment) and I was wondering if the extra RAM would actually help me out.
    I'm looking for some advice from people who have already upgraded to 16 GB... can you actually tell a difference?
    Any advice would be most welcome.
    Clinton

    BEWARE BEWARE BEWARE before you install your shiny new 16GB of RAM and restart the Mac!
    All modern computers manage their memory using a paged virtual memory scheme. This means setting aside a piece of the hard disk drive where unused portions of the processes are paged out (as you have already found out). Plus Macs incorporate a sleep+hibernate scheme for fast and reliable recovery after the lid is closed.
    Paged VM requires setting aside room for at least duplicating the physical RAM, EVEN IF it won't be needed (like you and your humongous gob of 16GB of real RAM), since the OS will want to play safe just in case. Hibernation is independent and knows nothing of the VM; it requires room at least the size of real RAM to copy its contents.
    Now that you are going to stuff 16GB in to replace the 8GB it already had, the paging + sleep spaces are going to DOUBLE in size. That means you will see 16GB magically vanish from the amount of free disk space, the instant the Mac boots up fully decked out. So be sure there's enough room available before doing the install.

  • Parallels -- 8GB or 16GB of Ram

    Hi,
    I am getting a new macbook pro which I will use for personal purposes and work.  In my current computer, I have Windows installed with Bootcamp.  The heaviest lifting I do is in excel where I work in very large excel models, sometimes several at the same time.
    I am purchasing a new baseline MBP 15" and with the faster computer I am hoping to run parallels so I don't have to restart every time I want to switch OS.  Would you recommend gettig 8GB of ram or 16GB of ram?
    Thanks so much for your help!

    bdstein33 wrote:
    Hi,
     ...I am purchasing a new baseline MBP 15" and with the faster computer I am hoping to run parallels so I don't have to restart every time I want to switch OS.  Would you recommend gettig 8GB of ram or 16GB of ram? 
    Thanks so much for your help!
    The thing to keep in mind is that with Bootcamp, Windows got to use all the resources of your Mac; it didn't have to compete with the Mac OS for CPU cycles and RAM since Windows was all that was running. With Parallels (or other software that supports virtual machines, such as VMware Fusion), Windows is running inside of the Mac OS, which in your case would be Mavericks. Both operating systems are using resources such as RAM, as is the virtualizing software, and you have to make sure there's enough to go around.
    So, the short answer is get as much RAM as you can, since, with the rMBP you can't add more later.

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