On my Macbook, suddenly syslogd is running away. Seems like http://www.macosxhints.com/article.php?story=20071030233438149 suggests that this is because of Tie Machine, even though I have it switched off. You can go and kill it with /Applications/Utilities/Activity Monitor and hopefully the new instance won’t go crazy.
In my case, I did this and the new syslogd is still going crazy. What the heck is “syslogd”:http://developer.apple.com/documentation/Darwin/Reference/ManPages/man8/syslogd.8.html, it throws things into Apple’s log files. I suspect this is related to me started “clamav”:http://clamav.net and is too jams the CPU when something new is installed.