[Puppet Users] Re: passenger vs mongrel performance
Hi All, An update on this thread.. Based upon some real world testing, I've updated the Passenger wiki to give some performance and with memory consumption (one of the main reasons for switching to Passenger right?): http://reductivelabs.com/trac/puppet/wiki/UsingPassenger Let me know if you have any comments, suggestions. -- Suggested Tweaks Based upon my (Larry Ludwig) testing of passenger/puppetmasterd I recommend adjusting these options in your apache configuration. PassengerPoolIdleTime - Set to 5 min or less. The shorting this option allows for puppetmasterd to get refreshed at some interval. This option is also somewhat dependent upon the amount of puppetd nodes connecting and at what interval. PassengerMaxPoolSize - to 15% more instances than what's needed. This will allow idle puppetmasterd to get recycled. The net effect is less memory will be used, not more. PassengerUseGlobalQueue on - Since communication with the puppetmaster from puppetd is a long process (more than 20 seconds in most cases) and will allow for processes to get recycled better PassengerHighPerformance on - The features Passenger offers with this feature disabled are not needed with Puppet. No different than with traditional web servers, once your service starts using swap performance degradation will occur. So be mindful of your memory/swap usage on your Puppetmaster. To monitor the age of your puppetmasterd processes within Passenger, run passenger-status the output you should be concerned with is: ... --- Domains --- /etc/puppet/puppetmasterd: PID: 7355Sessions: 0Processed: 5747Uptime: 1h 3m 30s PID: 9950Sessions: 0Processed: 2941Uptime: 27m 27s PID: 7117Sessions: 0Processed: 7208Uptime: 1h 8m 33s PID: 7575Sessions: 0Processed: 6307Uptime: 57m 19s PID: 9653Sessions: 0Processed: 2525Uptime: 37m 31s My personal preference is I like Passenger recycling puppetmasterd every few hours to ensure memory/garbage collection from Ruby is not a factor. -L -- Larry Ludwig Reductive Labs --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Puppet Users group. To post to this group, send email to puppet-users@googlegroups.com To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en -~--~~~~--~~--~--~---
[Puppet Users] Re: passenger vs mongrel performance
Ohad Levy ohadl...@gmail.com writes: Hi All, I've recently upgraded all of my mongrels to passenger on all of my puppetmasters, and I'm seeing some performance degradations, hopefully someone can provide some feedback.. i see an increase in cpu and load indicators, and i've calculated that the actual puppet compile time has increased: using mongrels - AVG of 3.24515 seconds, out of 30897 config runs using passenger AVG of 3.53524 seconds, out of 5992 config runs Once we got our Passenger config options in the right place our compile time went down by about *2/3*! Our CPU user stats seem to have gone up a teensy bit but overall load average is about the same. To complicate matters (or kill two birds with one stone :), when we switched to Passenger we also switched to RubyEE. the passenger option that i use are: PassengerMaxPoolSize 15 PassengerMaxRequests 3000 PassengerStatThrottleRate 600 FWIW, here are our options: PassengerHighPerformance on PassengerMaxPoolSize 24 PassengerPoolIdleTime 1500 # PassengerMaxRequests 1000 PassengerStatThrottleRate 120 RackAutoDetect Off RailsAutoDetect Off We were running 10 puppetmasterds with Mongrel. With Passenger we usually see 6-8 running. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Puppet Users group. To post to this group, send email to puppet-users@googlegroups.com To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en -~--~~~~--~~--~--~---
[Puppet Users] Re: passenger vs mongrel performance
Ohad, Now that we know that passenger is configured in Mark's case, try rubyEE and let us know the result. -L -- Larry Ludwig Reductive Labs --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Puppet Users group. To post to this group, send email to puppet-users@googlegroups.com To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en -~--~~~~--~~--~--~---
[Puppet Users] Re: passenger vs mongrel performance
Ohad, Was discussed a little last month (linky: http://groups.google.com/group/puppet-users/browse_thread/thread/445bf03568856a0a/36004ff8c56271c3 ) I think the general theme there was that it wasn't as fast as well... Someone submitted a patch to 0.25 to change the apache2 config example (linky: http://projects.reductivelabs.com/issues/2430) - seems based on the fact that it ignores some of the passenger settings if they are placed within a VirtualHost block... Greg On Jul 24, 1:07 pm, Ohad Levy ohadl...@gmail.com wrote: Hi All, I've recently upgraded all of my mongrels to passenger on all of my puppetmasters, and I'm seeing some performance degradations, hopefully someone can provide some feedback.. i see an increase in cpu and load indicators, and i've calculated that the actual puppet compile time has increased: using mongrels - AVG of 3.24515 seconds, out of 30897 config runs using passenger AVG of 3.53524 seconds, out of 5992 config runs the passenger option that i use are: PassengerMaxPoolSize 15 PassengerMaxRequests 3000 PassengerStatThrottleRate 600 Thanks, Ohad --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Puppet Users group. To post to this group, send email to puppet-users@googlegroups.com To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en -~--~~~~--~~--~--~---
[Puppet Users] Re: passenger vs mongrel performance
Thanks Greg, I saw Larrys patch, and its inline with my changes :( Ohad On Fri, Jul 24, 2009 at 11:46 AM, Greg greg.b...@gmail.com wrote: Ohad, Was discussed a little last month (linky: http://groups.google.com/group/puppet-users/browse_thread/thread/445bf03568856a0a/36004ff8c56271c3 ) I think the general theme there was that it wasn't as fast as well... Someone submitted a patch to 0.25 to change the apache2 config example (linky: http://projects.reductivelabs.com/issues/2430) - seems based on the fact that it ignores some of the passenger settings if they are placed within a VirtualHost block... Greg On Jul 24, 1:07 pm, Ohad Levy ohadl...@gmail.com wrote: Hi All, I've recently upgraded all of my mongrels to passenger on all of my puppetmasters, and I'm seeing some performance degradations, hopefully someone can provide some feedback.. i see an increase in cpu and load indicators, and i've calculated that the actual puppet compile time has increased: using mongrels - AVG of 3.24515 seconds, out of 30897 config runs using passenger AVG of 3.53524 seconds, out of 5992 config runs the passenger option that i use are: PassengerMaxPoolSize 15 PassengerMaxRequests 3000 PassengerStatThrottleRate 600 Thanks, Ohad --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Puppet Users group. To post to this group, send email to puppet-users@googlegroups.com To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en -~--~~~~--~~--~--~---
