Hello,
"ls" does not take that long and is available as in /proc/net/dev of the
mips filesystem.
Now i have this problem specifically for large VLAN creations which would
mean large number of interface data and IP-data , my concern is specific to
these areas.
Bcos when no large VLAN's avaiab;e not much to update for IF-MIB and IP-MIB.
Excuse me if i am not making sense here, as i am a novice in net-snmp area.
But frankly when no large VLAN's are present snmpd process shows 0% on top
output.
But anythng above 1000 VLANS, this is shows 100%.
Let me know.
Thanks.
BR,
Bheemesh
On Sat, Nov 21, 2009 at 2:24 AM, Mike Ayers <mike_ay...@tvworks.com> wrote:
> > From: bheemesh v [mailto:bheem...@gmail.com]
> > Sent: Friday, November 20, 2009 12:12 AM
>
> > YES, CPU stays 100% for ever, i think your guess might be right. But as
> > an observation when i had less than 2000 VLAN's this was not the case
> > it is used to fluctuate between 10-40-100 but predominently 100%.
>
> Hmmmm...
>
> I once did some testing on performance of directories in the ext2
> filesystem. I found that directory operations - list, add a file, remove a
> file, etc. were frisky up until about 1000 entries. By 2000 entries there
> was a perceptible slowdown. With 4000 entries in a directory, it took over
> a day just to remove all the files. My conclusion was that the directory
> operations were iterating the entire directory list for each operation,
> leading to exponential performance degradation. I saw the same problem
> adding routes, with the same thresholds. If this is your issue, you will
> have problems no matter what, but heavy caching should help matters a
> little. To test this, do an ls in the directory that holds all the vlans.
>
>
> HTH,
>
> Mike
>
>
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