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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.

Visit Discussion of syslogd problem at Smarticus

Written by Glenn Fleishman

 

 

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Quadra Vampires

If you're lucky enough to have a Quadra but you've been wondering what the excitement was all about, because yours just isn't that fast... you may be responsible! Rumour has it that the popular, free menu-bar clock utility SuperClock, among other useful doodads, can cause significant performance hits on your Quadra. It seems that many shareware programs, including SuperClock, were compiled with a version of THINK C lower than 5.0 and are not fully compatible with the '040 processor. SuperClock in particular will flush the cache each time a second clicks by, so you get an incredible performance hit!

[Adam: I asked Murph Sewall about this since he's working on a Quadra right now, and here are his impressions. In any event, things like this are a good reason to keep up with the latest version of your favorite shareware products since the most recent versions are the most likely to work without difficulty on the newest Macs.]

Murph Sewall writes, "I've been using SuperClock since I got the Quadra. On rare occasions, I run with all extensions off, but I can't say that I've noticed a great speed up when I do. I'll have to run some specific tests and see if I can find a noticeable effect. SuperClock may indeed flush the caches every second, but a whole second is eons to a 25 MHz processor (whatever performance hit may exist, it's nothing like the whack that occurs when you turn the caches off)."

Information from:
Mark H. Anbinder -- mha@baka.ithaca.ny.us
Murph Sewall -- sewall@uconnvm.uconn.edu

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