Topic
  • 2 replies
  • Latest Post - ‏2013-10-21T16:41:48Z by 2U2T_Sergey_Leonovich
paulc91
paulc91
1 Post

Pinned topic NMON and AME

‏2013-05-06T19:21:06Z |

Not sure where to post a NMON request, but I'll start here.  We have just started to use AME and I was surprised to see that there was no stats for it in NMON.

 

A tab for AME stats, ie the data from amepat showing Expansion factor, AME CPU usage, % Compressed Memory would be a good set of charts to have to verify (prove) all is working as expected and show the results of different expansion factors.

 

Thanks.

Updated on 2013-05-07T13:09:52Z at 2013-05-07T13:09:52Z by paulc91
  • nagger
    nagger
    1691 Posts

    Re: NMON and AME

    ‏2013-05-07T14:11:55Z  

    Correct there is no AME Tab but you are not looking hard enough as the data is there.

    AME is sort of memory and sort of paging so:

    MEM tab

    • Size of the Compressed pool (MB)
    • Size of true memory (MB)
    • Expanded memory size (MB),
    • Size of the Uncompressed pool (MB)


    MEMNEW tab

    • Compressed Pool%


    PAGE tab

    • Paging rates (pages per second) but this time very quickly in & out of the compressed memory area
    • Compressed pool pgins   - other tools like topas call this CI
    • Compressed pool pgouts - other tools like topas call this CO
  • 2U2T_Sergey_Leonovich
    1 Post

    Re: NMON and AME

    ‏2013-10-21T16:41:48Z  
    • nagger
    • ‏2013-05-07T14:11:55Z

    Correct there is no AME Tab but you are not looking hard enough as the data is there.

    AME is sort of memory and sort of paging so:

    MEM tab

    • Size of the Compressed pool (MB)
    • Size of true memory (MB)
    • Expanded memory size (MB),
    • Size of the Uncompressed pool (MB)


    MEMNEW tab

    • Compressed Pool%


    PAGE tab

    • Paging rates (pages per second) but this time very quickly in & out of the compressed memory area
    • Compressed pool pgins   - other tools like topas call this CI
    • Compressed pool pgouts - other tools like topas call this CO

    Does NMON also collect CPU penalty on memory compression (%xcpu xphysc in lparstat -c) ?

    (added): Also memory deficit (dxm) seem to be missing. It cannot be calculated from MEM tabs, at least does not seem so

     

    Thanks

    Updated on 2013-10-21T18:06:16Z at 2013-10-21T18:06:16Z by 2U2T_Sergey_Leonovich