Apple has issued a System Management Controller (SMC) update for the MacBook Pro with Retina Display, which fixes several sleep and wake issues for users running Mac OS X 10.7.4 Lion. Additionally, like the SMC updates recently issued for MacBook Air models (see “MacBook Air SMC Updates 1.5 and 1.6,” 27 July 2012), this one enables Power Nap support when running 10.8 Mountain Lion. (Free, 530 KB)
Syslogd Overwhelming Your Computer?
If your Leopard (Mac OS X 10.5) system is unexpectedly sluggish, logging might be the culprit. Run Activity Monitor (Applications/Utilities/ folder), and click the CPU column twice to get it to show most to least activity. If syslogd is at the top of the list, there's a fix. Syslogd tracks informational messages produced by software and writes them to the asl.db, a file in your Unix /var/log/ directory. It's a known problem that syslogd can run amok. There's a fix: deleting the asl.db file.
Launch Terminal (from the same Utilities folder), and enter these commands exactly as written, entering your administrative password when prompted:
sudo launchctl stop com.apple.syslogd
sudo rm /var/log/asl.db
sudo launchctl start com.apple.syslogd
Your system should settle down to normal. For more information, follow the link.
- MacBook Air SMC Updates 1.5 and 1.6 (27 Jul 12)