MacPro is overheating, installing Lion. BN indexer process seems to be cosuming around 100% CPU. What can I do?
MacPro overheating after installing Lion. BN indexer and-or helpd processes seem to be taking around 100% CPU. Suspending those processes seem to solve the problem, but does not seem to be an adequate solution.
Helpd updates all of the Application help files on your Mac.
However, I hate having helpd launching repeatedly and seemingly randomly, taking up 1 gig of RAM, and using so much CPU time that the fans go loudly full blast on my MacBook Pro. I prefer having my MacBook Pro be quiet.
Upon investigation, I found that helpd is controlled by a System LaunchAgent plist which is run on startup:
/System/LaunchAgents/com.apple.helpd.plist
When examining the contents of this plist using XCode, what you find is that:
1. helpd is run when it is loaded by the system at startup or login
2. helpd is run on every Sunday at 2:30 AM
3. the launch agent watches the following folders and runs helpd whenever the folders change:
/Applications/
/Applications/Utilities/
The biggest problem is the watch folders. They change whenever you open them (i.e. their modified date changes when opened). They change when you install a new application. Many applications change their Application folder content when run. etc. etc.
The easiest solution is to use Xcode, Lingon2 in expert mode (not Lingon3) or another plist editor to modify the com.apple.helpd.plist to change the watch folders.
I changed /Applications/ to /Applications/Utilities/ and left the second watch folder /Applications/Utilities/
Since I seldom open /Applications/Utilities/ this causes helpd to launch far less often.
You can also just simpliy eliminate the watch folders. This keeps helpd running on Sundays at 2:30 AM or on startup or login.
When users get rid of many older applications, they see helpd launch less often since these older applications may be the ones modifying the /Applications/ folder.
If you have only newer applications or few applications, you don't run into the helpd problem as often or at all. This is why few people complain about helpd. Only the users who have numerous applications (particularly older ones or ones not bought from the App Store) run into this problem.
Here are the contents of the com.apple.helpd.plist:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>EnableTransactions</key>
<true/>
<key>EnvironmentVariables</key>
<dict>
<key>NSRunningFromLaunchd</key>
<string>1</string>
</dict>
<key>Label</key>
<string>com.apple.helpd</string>
<key>LimitLoadToSessionType</key>
<array>
<string>Aqua</string>
<string>LoginWindow</string>
</array>
<key>MachServices</key>
<dict>
<key>com.apple.helpd</key>
<true/>
</dict>
<key>OnDemand</key>
<true/>
<key>Program</key>
<string>/System/Library/PrivateFrameworks/HelpData.framework/Versions/A/Resourc es/helpd</string>
<key>RunAtLoad</key>
<true/>
<key>StartCalendarInterval</key>
<dict>
<key>Hour</key>
<integer>2</integer>
<key>Minute</key>
<integer>30</integer>
<key>Weekday</key>
<integer>7</integer>
</dict>
<key>WatchPaths</key>
<array>
<string>/Applications/</string>
<string>/Applications/Utilities/</string>
</array>
</dict>
</plist>
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