On 12/24/2012 01:59 AM, Jakov Sosic wrote:
Thank both you and Nan Liu.
As the holidays approached I finally got a free day to work on this :)
I've rewritten 3 out of 4 my custom providers to self.instances schema.
I will test this and report back performance improvements on puppet
agents run with lots of resources of custom type I wrote, after I
rewrite the final provider.
And code looks much cleaner too! :) Once more a big thank you both :)
OK, I've finally published Cobbler module for Puppet :)
http://forge.puppetlabs.com/jsosic
https://bitbucket.org/jsosic/puppet-cobbler
And here is the most complex provider I have so far:
https://bitbucket.org/jsosic/puppet-cobbler/src/da3cdd684314360dcc5c633f374310f59f87ec42/lib/puppet/provider/cobblersystem/system.rb?at=default
And now about performance increase after rewriting my providers to use
XMLRPC one-call-per provider (self.instances) instead of few cmdline
calls for every resources. These are the agent run times:
Site1 (22 x cobblersystem)
- before: 68.1s
- after: 9.7s
Site2 (19 x cobblersystem)
- before: 54.0s
- after: 10.0s
Site3: (11 x cobblersystem)
- before: 40.9s
- after: 9.7s
Site4: (22 x cobblersystem)
- before: 80.1s
- after: 10.6s
So I guess this changes move it from O(n) to O(1) :)
--
Jakov Sosic
www.srce.unizg.hr
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