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Issue 37: Apple moved moved DNS lookups to the DirectoryService daemon in Snow Leopard, and since then large HOSTS cause veryhigh %CPU in DirectoryService process.
1 person starred this issue and may be notified of changes. Back to list
Status:  WontFix
Owner:  ----
Closed:  Apr 2012


 
Reported by case...@gmail.com, May 17, 2011
What steps will reproduce the problem?
1. Use Gas Mask & install a big HOSTS block list, for example: MVPS.
2. Open Activity Monitor.
3. Visit a website with a lot of look ups, like IMDB.com

What is the expected output? What do you see instead?
DirectoryService pegs CPU usage over 200% percent.

This does not happen with a short HOSTS file.

What version of the product are you using? On what operating system?
Latest v0.5.1.

Please provide any additional information below.
I know you can say Gas Mask has 1 purpose, and it does do that despite this issue.

However, another way to look at this is that Gas Mask is meant to enable effective blocking (HOSTS is just the implementation), so perhaps new versions of Gas Mask can consider this workaround?
http://hints.macworld.com/article.php?story=20100713190059936

Would be great if with Gas Mask we could get the advantage of effective HOSTS blocking, without the huge CPU overhead that OSX now imposes. 

The above link enables just that, but the process is a little more involved than most would like. If Gas Mask could simplify the process, it would be the greatest release evar! :P
Apr 11, 2012
Project Member #1 2ndal...@gmail.com
Is it still issue with Lion?
Apr 11, 2012
#2 case...@gmail.com
It appears this issue no longer occurs! Woo hoo!!

New combine files feature is nice too btw :)

Running: 
System Version:	Mac OS X 10.7.3 (11D50b)

Apr 11, 2012
Project Member #3 2ndal...@gmail.com
I'm glad you like combined files feature :)

I'll close the isse .
Status: WontFix

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