HP OpenVMS Systems

Why does raising BYTLM have no effect?

» close window

The Question is:

 
I need to set bytlm process quota higher (to approximately 128K), but
setting it higher than about 90K does not seem to have any effect.  Is there
a SYSGEN parameter that restricts this parameter?
 

The Answer is :

 
  There are no particular additional quotas or interlocks that would
  prevent you from raising BYTLM, though the buffered I/O storage
  controlled by the quota is allocated from non-paged pool, and the
  largest I/O transaction permitted is controlled by the MAXBUF value.
 
  If raising BYTLM has no affect (and beyond that buffered I/O storage
  necessary for the application operations, this is expected), consider
  that some other quota or system parameter limit or bottleneck (elsewhere)
  may now be affecting the application environment -- without details on
  the effect and on the environment involved here, additional suggestions
  are difficult.  As for alternative bottlenecks, consider PGFLQUOTA, the
  size of non-paged pool, the process workingset, the process buffered I/O
  limits, the ability of the I/O and memory and CPU to sustain the required
  I/O rate, and any of a variety of other topics addressed in the OpenVMS
  performance manual.
 

  

     

     
answer written or last revised on ( 23-AUG-1999 )
     
» close window