Monitoring memory on AIX

Henrik (and others), any comments on this post ?


On Wednesday 28 February 2007 11:49, Stef Coene wrote:

Hi,

I changed hobbitgraph.cfg so it created to extra graphs: one for Access
Virtual Memory and one for the free list.  See
http://www.docum.org/twiki/bin/view/Hobbit/AixTips
Henrik, can you add these graph definitions ?


I also patched the hobbit server so it monitors the Access Virtual Memory
on AIX:

diff hobbit-4.2.0/hobbitd/client/aix.c
hobbit-4.2.0.ori/hobbitd/client/aix.c 73c73
<               long memphystotal, memphysused, memphysfree, memactused,
memswaptotal, memswappct;
---

              long memphystotal, memphysused, memphysfree, memswaptotal,

memswappct;
80d79
<               if (sscanf(freememstr, "%*d %*d %ld", &memactused) == 1)
memactused /= 256;
88c87
<                               memphystotal, (memphystotal - memphysfree),
memactused,
---

                              memphystotal, (memphystotal -

memphysfree), -1,

Henrik : The only problem is that Total for the line Actual is always the
amount of Physical Memory.  But this should be Physical Memory + Swap
Memory. At least, this is for AIX, but I think this is for other os'es as
well.  I think this is a bug.

The problem is that Actual can be > 100%.  So, I had to
change ./hobbitd/rrd/do_memory.c and remove the > 100% to get some graphs:
   //if ((actval >= 0) && (actval <= 100)) {
   if (actval >= 0 ) {
      sprintf(rrdfn, "memory.actual.rrd");


Stef