my old netbook (AMD C-60) when starting Sinatra apps would starts in 5-7 seconds (Ruby), 23-24 seconds (JRuby)
OS (netbook): 32-bit Arch Linux 3.4.62-1 i686 PAE (2GB RAM)
my developmen PC (AMD A8-6600K) starts at 1-2 seconds (Ruby), 12-16 seconds (JRuby)
OS (pc): 32-bit Arch Linux 3.11.1-1 i686 PAE (8GB RAM)
When i add vmware on my development PC, starts at 0.9-2 seconds (Ruby), 7 seconds (JRuby)
Guest OS (vm-pc): 32-bit Arch Linux 3.11.1-2 i686 (1.5GB RAM)
when using 32-bit guest under 64-bit VMware under (i3-3220, that should be many times faster than my old netbook), it starts in 45-46 seconds (Ruby), and 30-37 seconds (JRuby)..
Guest OS (vm-i3): 32-bit Arch Linux 3.11.1-2 i686 (1.5GB RAM)
Host OS: 64-bit Ubuntu Linux 3.8.0.19 x86_64 13.04 (2GB RAM, only running Unity, VMware and gnome-terminal)
When running a single script (generating 12MB of data to database), the performance was normal:
real/user/sys
netbook: ruby: 4:25/2:13/0:02 jruby: 13:21/11:46/0:09
pc: ruby: 1:39/0:31/0:05 jruby: 3:52/ 3:38/0:03
vm-pc: ruby: 0:40/0:31/0:06 jruby: 3:25/ 3:12/0:02
vm-i3: ruby: 1:18/0:21/0:05 jruby: 3:16/ 2:19/0:35
The configuration:
Ruby: using Thin web server, ruby -v
ruby 2.0.0p247 (2013-06-27 revision 41674) [i686-linux]
JRuby: using Trinidad web server, jruby -v
jruby 1.7.4 (1.9.3p392) 2013-05-16 2390d3b on OpenJDK Client VM 1.7.0_40-b31 +indy [linux-i386]
what are the possibilities the cause of this startup slowness on vm-i3?
The problem was on /etc/hosts file, forgot to add a line containing localhost/hostname