Home Page for the TeradataForum
 

Archives of the TeradataForum

Message Posted: Fri, 09 Apr 2004 @ 16:19:55 GMT


     
  <Prev Next>  
<<First
<Prev
Next>
Last>>
 


Subj:   PMON memory columns
 
From:   Anomy Anom

<-- Anonymously Posted: Friday, April 09, 2004 12:04 -->

Can anyone tell me what these Performance Monitor memory columns represent? All four appear on the node/physical screen, but only the first two appear on the vproc/logical screen. The Teradata Manager User Guide only says this much:

Mem Segs Allocated - The number of segments allocated to memory resources

Mem KB Allocated - The number of Kilobytes allocated to memory resources

Mem Failures - The number of segment allocation attempts that failed

Mem Segs Agings - The number of memory agings and collections done on old segments


Where do these values come from? I can guess that MemFailures is the same as ResUsageSpma column MemFails, and that MemSegAgings is the same as ResUsageSpma column MemAgings. And perhaps the node/physical "allocated" columns tie back to MemTextAllocs and/or MemVprAllocs and/or MemVprAllocKB in ResUsageSpma. And perhaps the vproc/logical "allocated" columns tie back to Mem[seg]Allocs and/or Mem[seg]AllocKB and/or MemCtxtAllocs, where [seg] has 6 possible values, in ResUsageSvpr? But how?

Is there anyway that these columns can tell me when the amount of free memory is low?? Can I somehow subtract the amount allocated from the total available to figure out what's free?


Thank you,

Anomy



     
  <Prev Next>  
<<First
<Prev
Next>
Last>>
 
 
 
 
 
 
 
 
 
  
  Top Home Privacy Feedback  
 
 
Copyright for the TeradataForum (TDATA-L), Manta BlueSky    
Copyright 2016 - All Rights Reserved    
Last Modified: 27 Dec 2016