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Help creating a timestamp script to record mem usage

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# 1  
Old 06-29-2012
Help creating a timestamp script to record mem usage
Hi,

I'm looking into doing a few performance tweaks by adjusting my max memory on a few lpars.

I would to create a time stamp script so i could review it for a week and determine how much space i can lower my max memory to so i could reclaim and allocate that memory to where it is needed the most.

I know the command I need is
Code:
svmon -P -v -t 10 | more

I am not sure how to create a timestamp in ksh. I've tried a few things but not working.

Basically I want to capture my real memory usage every hour... I will create my cronjob to run it every hour on the hour, I also need it output to a file.

Your help is greatly appreciated!

Thanks in advance!
# 2  
Old 06-29-2012
Code:
(echo "\n" ;date; echo "\n") >svmon-P-v-t20.out
 svmon -P -v -t 10 >>svmon-P-v-t20.out 
#
more svmon-P-v-t20.out


Fri Jun 29 17:26:12 DFT 2012


-------------------------------------------------------------------------------
     Pid Command          Inuse      Pin     Pgsp  Virtual 64-bit Mthrd  16MB
 1491100 svmon            41250     7232       49    41192      Y     N     N

     PageSize                Inuse        Pin       Pgsp    Virtual
     s    4 KB                3074          0         49       3016
     m   64 KB                2386        452          0       2386

    Vsid      Esid Type Description              PSize  Inuse   Pin Pgsp Virtual
  188060  90000000 work fork tree                    m   1897     0    0    1897
                   children=5a74d0, 0
    8002         0 work fork tree                    m    484   449    0     484
                   children=802760, 0
   14005  9ffffffd work fork tree                   sm   1775     0   34    1807
                   children=7f12a0, 0
   a532d  90020014 work shared library               s    835     0   13     837
   8262a        11 work text data BSS heap          sm    152     0    0     152
   3000c  9ffffffe work fork tree                   sm    151     0    2     151
                   children=5a8fb0, 0
   7ce95 f00000002 work process private              m      5     3    0       5
   d273d  9001000a work shared library data         sm     45     0    0      45
   3d785  80020014 work USLA heap                   sm     16     0    0      16
   61611  8fffffff work private load data            s      5     0    0       5
...

This User Gave Thanks to vbe For This Post:
vpundit
# 3  
Old 06-29-2012
Just to make sure too, if you're going to run it hourly you want to change the date to append instead of replace. Your output file will be a little short otherwise. Smilie

Quote:
Originally Posted by vbe
Code:
(echo "\n" ;date; echo "\n") >svmon-P-v-t20.out
 svmon -P -v -t 10 >>svmon-P-v-t20.out

Code:
(echo "\n" ;date; echo "\n") >>svmon-P-v-t20.out
 svmon -P -v -t 10 >>svmon-P-v-t20.out

This User Gave Thanks to jtollefson For This Post:
vpundit
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