[c-nsp] Extremely slow performing show running-config

[David Freedman]

Well, do you have a lot of VLANs configured?

Since vlan config is now done through the running-config as well,
I'm imagining NVGEN has to parse the vlan.dat as well , if it is big I
would imagine this adding to the NVGEN running time.

Dave.


Ross Vandegrift wrote:
> On Tue, Sep 30, 2008 at 02:55:52PM +0100, David Freedman wrote:
>> Well, you are waiting for NVGEN which ...
>> <snip>
>>
>> I've just found a URL which explains it so I don't have to :
>>
>> http://6200networks.com/2008/09/17/configuration-generation-performance-enhancement/
>>
>> I can tell you I have NVGEN caching enabled on 12.2SXH2a on SUP720
>>
>> router(config)#parser config ?
>>   cache  Cache the configuration
> 
> This looks slightly different on 12.2.SXF:
> 
> router(config)#parser ?
>   cache  Configure parser cache
> router(config)#parser cache ?
>   <cr>
> 
> Is this the same feature?
> 
> According to feature navigator, Parser Cache is "Adding a cache to the
> parser to improve performance".  The more information link is
> broken...
> 
> 
>