Why is 8gb only showing total memory of less than 6.5?

why is 8gb only showing total memory of less than 6.5?

Because the difference is due to the operating system taking up most of the diference and the other is how GB is advertised and actually used.
http://en.wikipedia.org/wiki/Gigabyte

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    First, make sure you're logged into the iTunes Store using the account ID and password you set up, or used, when you redeemed your card/gift.  If you are, try signing out of the account and back in.
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    Good luck.

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    abap/heap_area_total     4000000000
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    Yes it is CI system. Below is the result of sappfpar
    ***ERROR: Size of shared memory pool 10 too small
    ================================================================
    SOLUTIONS: (1) Locate shared memory segments outside of pool 10
                      with parameters like: ipc/shm_psize_<key> =0
    SOLUTION: Increase size of shared memory pool 10
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    Shared memory disposition overview
    ================================================================
    Shared memory pools
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                Size min. estimated.:   153795112 ( 146.7 MB)
                Advised Size........:   156000000 ( 148.8 MB)
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                Size configured.....:   114000000 ( 108.7 MB)
                Size min. estimated.:   108871136 ( 103.8 MB)
                Advised Size........:   112000000 ( 106.8 MB)
    Shared memories inside of pool 10
    Key:        1  Size:        2500 (   0.0 MB) System administration       
    Key:        2  Size:     6218836 (   5.9 MB) Disp. administration tables 
    Key:       11  Size:      500000 (   0.5 MB) Factory calender buffer     
    Key:       12  Size:     6000000 (   5.7 MB) TemSe Char-Code convert Buf.
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    Key:       17  Size:     2754336 (   2.6 MB) Roll administration         
    Key:       30  Size:       51200 (   0.0 MB) Taskhandler runtime admin.  
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    Key:       54  Size:     4202496 (   4.0 MB) Export/Import buffer        
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    Key:       57  Size:     1048576 (   1.0 MB) Profilparameter in shared mem
    Key:       58  Size:        4096 (   0.0 MB) Enqueue ID for reset 
    Shared memories inside of pool 40
    Key:       42  Size:     7056992 (   6.7 MB) DB TTAB buffer              
    Key:       43  Size:    32494488 (  31.0 MB) DB FTAB buffer              
    Key:       44  Size:     7914392 (   7.5 MB) DB IREC buffer              
    Key:       45  Size:     4842392 (   4.6 MB) DB short nametab buffer     
    Key:       46  Size:       20480 (   0.0 MB) DB sync table               
    Key:       47  Size:     3073024 (   2.9 MB) DB CUA buffer               
    Key:       48  Size:      500000 (   0.5 MB) Number range buffer         
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    Key:        6  Size:   319488000 ( 304.7 MB) ABAP program buffer         
    Key:        7  Size:       14838 (   0.0 MB) Update task administration  
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    Key:        9  Size:   134217828 ( 128.0 MB) Roll buffer                 
    Key:       14  Size:     4400128 (   4.2 MB) Presentation buffer         
    Key:       18  Size:      917604 (   0.9 MB) Paging adminitration        
    Key:       19  Size:    30000128 (  28.6 MB) Table-buffer                
    Key:       41  Size:    25010000 (  23.9 MB) DB statistics buffer        
    Key:       62  Size:    85983232 (  82.0 MB) Memory pipes                
    Key:       63  Size:      409600 (   0.4 MB) ICMAN shared memory         
    Key:       64  Size:     4202496 (   4.0 MB) Online Text Repository Buf. 
    Key:       65  Size:     4202496 (   4.0 MB) Export/Import Shared Memory 
    Key:     1002  Size:      400000 (   0.4 MB) Performance monitoring V01.0
    Key: 58900100  Size:        4096 (   0.0 MB) SCSA area
    Nr of operating system shared memory segments: 18
    Shared memory resource requirements estimated
    ================================================================
    Total Nr of shared segments required.....:         18
    System-imposed number of shared memories.:       1000
    Shared memory segment size required min..:  319488000 ( 304.7 MB)
    System-imposed maximum segment size......: 35184372088832 (33554432.0 MB)
    Edited by: Joel Cancio on Jan 14, 2011 8:11 AM

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