[Info-vax] PRCLM Maximum

[John E. Malmberg]

On 2/8/2013 8:12 AM, Doc Trins O'Grace wrote:
> The PRCLM on my account is currently set to 8. Sometimes, to my
> annoyance, I hit that limit. I was thinking of setting it to 16,
> reducing the chances that I exceed the limited number of spawned
> processes. Are there any issues associated with larger PRCLM values?

You may want to look at why you are creating so many subprocesses. 
There may be alternatives.

There was a default configuration in older versions of DECWindows that 
launched everything as subprocesses, and as result, if you did not 
change the default, you could run out of quota real fast.  The fix there 
was to create launch everything as separate processes.

GNV Bash and utilities do launch a number of subprocesses and require 
some generous quotas.  As does Java.

These are my settings on a DS-10 .  Some of them are for GNV, some of 
them are for Java.  Your WSEXTENT is bounded by how much physical memory 
you have and the pgflquo is bounded by how much pagefile that you have.

Maxjobs:         0  Fillm:      4096  Bytlm:       400000
Maxacctjobs:     0  Shrfillm:      0  Pbytlm:           0
Maxdetach:       0  BIOlm:       150  JTquota:      30000
Prclm:          30  DIOlm:       150  WSdef:         2000
Prio:            4  ASTlm:       250  WSquo:         4000
Queprio:         4  TQElm:       100  WSextent:    200000
CPU:        (none)  Enqlm:      2000  Pgflquo:    2300000

PQL_DPRCLM          32         32         0     -1 Processes  D
PQL_MPRCLM          10          0         0     -1 Processes  D
PQL_DTQELM          16         16         0     -1 Timers     D
PQL_MTQELM           0          0         0     -1 Timers     D
PQL_DWSDEFAULT    5936       4096      2048     -1 Pagelets
  internal value    371        256       128     -1 Pages
PQL_MWSDEFAULT    5936       2048      2048     -1 Pagelets
  internal value    371        128       128     -1 Pages
PQL_DWSQUOTA     11872       8192      4096     -1 Pagelets   D
  internal value    742        512       256     -1 Pages      D
PQL_MWSQUOTA     11872       4096      4096     -1 Pagelets   D
  internal value    742        256       256     -1 Pages      D
PQL_DWSEXTENT   786432      32767      8192     -1 Pagelets   D
  internal value  49152       2048       512     -1 Pages      D
PQL_MWSEXTENT   786432       8192      8192     -1 Pagelets   D
  internal value  49152        512       512     -1 Pages      D
PQL_DENQLM        2048       2048        64     -1 Locks      D
PQL_MENQLM         300         64        64     -1 Locks      D
PQL_DJTQUOTA      8192       8192         0     -1 Bytes      D
PQL_MJTQUOTA         0          0         0     -1 Bytes      D

Regards,
-John
wb8tyw at qsl.network
Personal Opinion Only