[c-nsp] OSM memory allocating process question

[Emanuel Popa]

On 3/31/06, Rodney Dunn <rodunn at cisco.com> wrote:
> On Fri, Mar 31, 2006 at 01:26:27PM +0300, Emanuel Popa wrote:
> > [...]
> >
> > Allocator PC Summary for: Processor
> >
> >     PC          Total   Count  Name
> > 0x603F4EC8   20447344       2  CWTLC STAT INFO
> > 0x602D8740    6291568       2  SCP Find Master process
> > 0x602D8A74    3604592       2  SCP Find Master process
> > 0x603F4EB0    3145840       2  Init
> > 0x602A0A20    1500056       1  rp if_info
> > 0x604C18B8    1377432      21  Linecard CEF m
> > 0x604597E4    1179648   12288  Init
> > 0x603F2F2C    1080056       1  fr if_info
> > [...]
> >
> > Allocator PC Summary for: I/O
> >
> >     PC          Total   Count  Name
> > 0x600ECB70    2952320       5  COMM
> > 0x600E6A54    1055392     338  *Packet Data*
> >
> > [...]
> >
> > Of course, an upgrade is necessary and will be done eventually...
>
> Yeah..but I do find it a bit odd that a STAT INFO type process would
> be holding 20M. I think that is some information about QOS running
> on the card. What code are you running?
>
> I see some changes where they changed things in this area in 12.2(18)SXD
> but I can't tell how much it would have changed it because it appears
> to be configuration specific.
>

the code we are running is 12.2(18)SXF:

ROUTER#sh ver | i IOS
IOS (tm) s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version
12.2(18)SXF, RELEASE SOFTWARE (fc1)

i tried disabling qos because we were only using it to change the DSCP
of the packets in order to identify them on the access layer:

ROUTER#sh mls qos
  QoS is disabled globally

but the STAT INFO process still takes 20MB of our precious memory.
here is the memory allocating process from another OSM in the same
chassis:

CWTLC-Slot1#sh memory allocating-process totals
                Head    Total(b)     Used(b)     Free(b)   Lowest(b)  Largest(b)
Processor   6183D880    92022656    91908624      114032       67664       71384
      I/O   20000000    16777216     3926232    12850984    12639360    12561432

Allocator PC Summary for: Processor

    PC          Total   Count  Name
0x604CD6A8   30718952     912  FIB 1 path chu
0x603F4EC8   20447344       2  CWTLC STAT INFO
0x604CD7D8   11679168     354  IP mtrie node
0x602D8740    6291568       2  SCP Find Master process
0x602D8A74    3604592       2  SCP Find Master process
0x603F4EB0    3145840       2  Init
0x602A0A20    1500056       1  rp if_info
0x604C18B8    1377432      21  Linecard CEF m
0x604597E4    1179648   12288  Init
0x603F2F2C    1080056       1  fr if_info
[...]

Indeed, we are running as close to the edge as possible.

Do you think there is any chance to find out more details about this
process: "CWTLC STAT INFO". Is there anybody out there with a 7600, a
full routing table, an OSM linecard and 12.2(18)SX? I would be curious
to see how much memory does this process take on other
configurations...

Thx,
Emanuel Popa