Redmine

I am seeing very inconsistent performance with my Redmine installs. I've finally gotten to a point where I can actually start to debug it. I installed Redmine on Ubuntu 10.04.1 LTS via. the redmine package. I installed this on a fresh virtual machine that has literally nothing else installed and running on it except for what is on the out of the box Ubuntu 10.04.1 LTS UEC image.

I've seen +6s response times for the index page. Often this is after a period of being idle. Top will show Ruby using upwards of 60% of the CPU. After a few page loads things get speedy again. I know that sometimes improperly configured mail settings can cause an issue but I'm not doing anything with mail (yet). I do not think that is it?

root@ip-172-19-1-2:/usr/share/redmine# cat /proc/cpuinfo 
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 2
model name      : QEMU Virtual CPU version 0.12.3
stepping        : 3
cpu MHz         : 3199.602
cache size      : 4096 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 4
wp              : yes
flags           : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm up rep_good pni cx16 popcnt hypervisor lahf_lm
bogomips        : 6399.20
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:

Here are my packages:

Package: mysql-server
Version: 5.1.41-3ubuntu12.6

Package: ruby1.8
Version: 1.8.7.249-2

Package: redmine
Version: 0.9.3-1

Package: libapache2-mod-passenger
Version: 2.2.7debian-1

Here is some information from the logs:

Processing WelcomeController#index (for 10.42.44.22 at 2010-10-19 06:13:38) [GET]
  Parameters: {"action"=>"index", "controller"=>"welcome"}
Rendering template within layouts/base
Rendering welcome/index
Completed in 2054ms (View: 1819, DB: 23) | 200 OK [http://10.42.43.100/redmine/]

Processing WelcomeController#index (for 10.42.44.22 at 2010-10-19 06:16:07) [GET]
  Parameters: {"action"=>"index", "controller"=>"welcome"}
Rendering template within layouts/base
Rendering welcome/index
Completed in 1748ms (View: 1720, DB: 5) | 200 OK [http://10.42.43.100/redmine/]

Processing WelcomeController#index (for 10.42.44.22 at 2010-10-19 06:20:39) [GET]
  Parameters: {"action"=>"index", "controller"=>"welcome"}
Rendering template within layouts/base
Rendering welcome/index
Completed in 17ms (View: 10, DB: 1) | 200 OK [http://10.42.43.100/redmine/]

Processing AdminController#index (for 10.42.44.22 at 2010-10-19 06:20:42) [GET]
  Parameters: {"action"=>"index", "controller"=>"admin"}
Rendering template within layouts/admin
Rendering admin/index
Completed in 41ms (View: 21, DB: 1) | 200 OK [http://10.42.43.100/redmine/admin]

Processing WelcomeController#index (for 10.42.44.22 at 2010-10-19 06:29:02) [GET]
  Parameters: {"action"=>"index", "controller"=>"welcome"}
Rendering template within layouts/base
Rendering welcome/index
Completed in 3457ms (View: 3162, DB: 73) | 200 OK [http://10.42.43.100/redmine/]

Sometimes it is blazingly fast! 41ms? That is pretty decent in my book. 17ms? Great! But that same view (welcome/index) took a considerably larger amount of time to render earlier. I really have no idea what would cause it to be slow "sometimes."

As for configuration, it is pretty much just running the defaults. I haven't added any repos, I haven't changed the username and password or added any additional users. Nothing.