Kill a root system process and have it stay dead until next reboot

The process in question is UPDATE
it does its thing at exactly 30-second intervals
according to this
http://www.westwind.com/reference/OS-X/background-processes.html
it's "responsible for keeping disks synchronized with the file system cache, to keep data loss to a minimum in case of a crash."
I don't care if my disc cache is in sync while I'm playing an ACTION GAME, but it's really annoying when my character dies because the screen stops updating for 0.5 seconds while UPDATE does it's thing. Gaming is pretty much useless with this process running.
Is there anybody out there who can help me to either:
1. kill the Update process and have it stay dead till the next reboot, or
2. tell the Update process to do it's thing at longer intervals instead of 30 seconds (like maybe 30 HOURS)
Thanks for any assistance!

You can find out what defaults it is running with using "ps ax | grep update" (if it is called "update" as it is in Tiger). I very much doubt that configuring it in single-user mode would have any lasting effect - my guess is that you would have to configure the startup file which controls it. If you do this, though, the change will hold whether you are gaming or not - and even if you don't care about the integrity of your disk then, you may at other times.
Note that "data loss" here may not just mean your personal data - it might include the integrity of the file system as a whole. That is, you might end up with an unbootable system. I don't know this, but it may not just be a question of losing changes to user documents, say. The manpage for Tiger doesn't mention data loss but only the integrity of the volumes.
Also, killing it may not work. If it is considered an essential process, the chances are that the system will restart the process if it dies or is killed - certainly that's true of some other processes in Mac OS X.
If instead you gave your game higher priority, when you quit the game, things will go back to normal. I definitely think it would be worth trying that route first. Should you decide to try killing update or reconfiguring the way the system starts up, make sure that you backup everything first. A good way is to clone your system to an external drive and then boot from that clone and ensure everything works as you expect.
- cfr

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