# Ruby from source on Leopard excruciatingly slow internet talk **URL:** \ **Category:** Ruby\ **Created:** [January 13, 2008, 1:39am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865 "2008-01-13T01:39:55Z")\ **Posts on this page:** 19\ **Page:** 1
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 13, 2008, 1:39am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/1 "2008-01-13T01:39:55Z")
Just a couple of days ago I “upgraded” from Tiger to Leopard, and the most horrible thing about it is that anything Ruby does over the internet is so very very slow now. `which ruby` tells me I’m still using my from-source install in /usr/local/bin, as does `which gem`. I have a script that scrapes some stuff from craigslist that now takes way too long (I might as well look myself). And my heart sinks when I see “Updating metadata for 176 gems from [http://gems.rubyforge.org](http://gems.rubyforge.org)”. That seriously takes forever (a little hyperbole). Nothing else is suffering huge network slowness. Even a simple “require ‘open-uri’; open(‘[http://www.google.com](http://www.google.com)’)” takes 15 seconds (but half a second tops in a browser). This all happened at a reasonable pace just a few days ago. Other ruby installations on other machines (with other operating systems) talk to the internet with appropriate quickness. I know one other person who’s experienced this, but with no solution. Anyone else? I haven’t found similar stories, but maybe that’s because no one else is having this problem, or the solution is so obvious no one bothers to mention it. Any pointers or ideas would be hugely appreciated. Thanks, Chris ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 13, 2008, 1:45am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/2 "2008-01-13T01:45:46Z")
This may not help you but I was having a slow-as-molasses DNS lookup issue when I upgraded to Leopard. I disabled IPv6 and it sped things up considerably. Anyhow, it’s a change that might help and is easy to undo. HTH ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 13, 2008, 1:48am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/3 "2008-01-13T01:48:06Z")
On Jan 12, 2008, at 4:39 PM, Chris S. wrote: > open(‘[http://www.google.com](http://www.google.com)’)" takes 15 seconds (but half a second > > Thanks, > Chris Try adding this to your script: # for OSX compatibility Socket.do\_not\_reverse\_lookup = true Cheers- - Ezra Z. – Founder & Software Architect – removed\_email\_address@domain.invalid – [EngineYard.com](http://EngineYard.com) ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 14, 2008, 11:45pm UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/4 "2008-01-14T23:45:13Z")
could try the macport ruby Chris S. wrote: > Just a couple of days ago I “upgraded” from Tiger to Leopard, and the > most horrible thing about it is that anything Ruby does over the > internet is so very very slow now. `which ruby` tells me I’m still > using my from-source install in /usr/local/bin, as does `which gem`. ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 14, 2008, 10:52pm UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/5 "2008-01-14T22:52:53Z")
> ``` > Try adding this to your script: > > ``` > > # for OSX compatibility > > Socket.do\_not\_reverse\_lookup = true Any idea where to patch rubygems? ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 15, 2008, 5:23am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/6 "2008-01-15T05:23:29Z")
On Jan 14, 2008, at 9:14 PM, s.ross wrote: > I’ve had almost exactly the same experience. Really slow internet > connectivity in general. I think I have it narrowed down to > wireless using WEP. I hooked up an old fashioned ethernet cable > (remember those?) and everything is lickety split fast. HTH. me too. this a leoTard issue. in general i’m finding it to be sucking the big one for networking - you can see the same behavior with curl as you’ll find in ruby. i also disabled ipv6 and am using opendns for lookups. still slower than tiger though. a @ [http://codeforpeople.com/](http://codeforpeople.com/) ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 15, 2008, 7:12am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/7 "2008-01-15T07:12:35Z")
ara.t.howard wrote: > On Jan 14, 2008, at 9:14 PM, s.ross wrote: > > > I’ve had almost exactly the same experience. Really slow internet > > connectivity in general. I think I have it narrowed down to > > wireless using WEP. I hooked up an old fashioned ethernet cable > > (remember those?) and everything is lickety split fast. HTH. > > me too. this a leoTard issue. in general i’m finding it to be > sucking the big one for networking - you can see the same behavior > with curl as you’ll find in ruby. > > i also disabled ipv6 and am using opendns for lookups. still slower > than tiger though. > > a @ [http://codeforpeople.com/](http://codeforpeople.com/) I had this problem too and found some bogus DNS servers had creeped into Network Setup, even though everything had been set to DCHP before (and I assumed after) the upgrade. My guess was that network was waiting for them to timeout before contacting my real DNS server. Key symptom is eons to start loading a page/download a file/whatever, but normal performance once the activity actually starts. I know it sounds noob, but check to make sure there aren’t any unexpected DNS Servers in System Prefs → Network → Advanced (for the correct interface) → DNS. ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 15, 2008, 7:29am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/8 "2008-01-15T07:29:40Z")
On Jan 14, 2008, at 8:22 PM, ara.t.howard wrote: > am using opendns for lookups I tried opendns until the first bad lookup (address not in dns) when opendns hijacked the request and redirected my browser to an ad. It just seems creepy to have your dns lookups spoofed like that. ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 15, 2008, 5:14am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/9 "2008-01-15T05:14:43Z")
I’ve had almost exactly the same experience. Really slow internet connectivity in general. I think I have it narrowed down to wireless using WEP. I hooked up an old fashioned ethernet cable (remember those?) and everything is lickety split fast. HTH. ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [January 15, 2008, 11:53am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/10 "2008-01-15T11:53:43Z")
On 15 Jan 2008, at 04:22, ara.t.howard wrote: > with curl as you’ll find in ruby. > > i also disabled ipv6 and am using opendns for lookups. still slower > than tiger though. I had a problem like that. For some reason removing all locations from the network prefs and adding them back in fixed it for some reason. Fred ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 4, 2008, 1:28am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/11 "2008-02-04T01:28:36Z")
I am having this problem too, I’ve tried disabling IPv6 and I’ve put the Socket. thing in my configuration and it’s still slow. ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 4, 2008, 6:57am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/12 "2008-02-04T06:57:31Z")
Bryce R. wrote: > I am having this problem too, I’ve tried disabling IPv6 and I’ve put the > Socket. thing in my configuration and it’s still slow. could try require ‘resolv-replace’ ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 4, 2008, 6:03pm UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/13 "2008-02-04T18:03:08Z")
require ‘resolv-replace’ ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 6, 2008, 4:31am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/14 "2008-02-06T04:31:26Z")
Roger P. wrote: > require ‘resolv-replace’ somehow my editing /etc/hosts once (took some hosts out), worked faster, then adding them back in and it still worked fast. Weird. Somebody elsewhere also said that doing the ‘assist me’ in networking preferences fixed their problem. Who knows what it really is 🙂 -Roger ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 4, 2008, 7:23am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/15 "2008-02-04T07:23:39Z")
Roger P. wrote: > Bryce R. wrote: > > > I am having this problem too, I’ve tried disabling IPv6 and I’ve put the > > Socket. thing in my configuration and it’s still slow. > > could try > require ‘resolv-replace’ Then it comes up with this: LoadError: no such file to load – resolve-replace from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom\_require.rb:27:in `gem_original_require' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in`require’ from (irb):1 ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 4, 2008, 9:05pm UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/16 "2008-02-04T21:05:36Z")
On Jan 12, 5:39 pm, Chris S. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Any pointers or ideas would be hugely appreciated. After some pointers and ideas, things are running much faster. What I’ve done: 1. Disabled IPv6 (thanks s.ross) 2. OpenDNS for lookup (thanks Ara, though those redirects on failed lookups suck) 3. Started requiring ‘resolv-replace’ (thanks Roger P.) I’m using Ruby and the Internet together at near Tiger speeds. I added “require ‘resolv-replace’” to /usr/local/bin/gem as well, and I’m no longer scared of “Updating metadata for 132 gems from [http://gems.rubyforge.org](http://gems.rubyforge.org)” Thanks everyone. Hopes this thread helps anyone else having similar issues. Chris ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 8, 2008, 8:29am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/17 "2008-02-08T08:29:11Z")
I had success with require ‘resolv-replace’ # for OSX compatibility Socket.do\_not\_reverse\_lookup = true is there a way I can have this enabled by default accross all scripts? ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 6, 2008, 5:00am UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/18 "2008-02-06T05:00:48Z")
laughably, the following script (which overwrites your /etc/hosts file periodically with one or two entries) seems to help. I probably wouldn’t really recommend this unless you really know what you’re doing, but here it is count = 0 loop do a = File.open ‘/etc/hosts’, ‘w’ a.write ‘127.0.0.1 localhost’ + “\n” a.write ‘127.0.0.1 localhost2’ + “\n” if (count%2) == 1 a.close sleep 0.5 count += 1 end (save this as a file like ‘renew\_etc.rb’, save a copy of your /etc/hosts file somewhere, then run sudo ruby renew\_etc.rb) You could try changing the sleep value. Note that running this may have unforeseen effects. I wouldn’t believe it if it didn’t seem to work. Note that the default /etc/hosts file is ## # Host Database # # localhost is used to configure the loopback interface # when the system is booting. Do not change this entry. ## 127.0.0.1 localhost 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 localhost if you need to recreate it. GL. -Roger ---
**Author:** ![yetanothergeek](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8e8cbc/32.png) [@yetanothergeek](https://www.ruby-forum.com/u/yetanothergeek)\ **Post date:** [February 8, 2008, 6:34pm UTC](https://www.ruby-forum.com/t/ruby-from-source-on-leopard-excruciatingly-slow-internet-talk/125865/19 "2008-02-08T18:34:18Z")
Bryce R. wrote: > I had success with > require ‘resolv-replace’ > > # for OSX compatibility > > Socket.do\_not\_reverse\_lookup = true > > is there a way I can have this enabled by default accross all scripts? you could add that code to the lib included when you run require ‘rubygems’ as that is always loaded for app