High CPU while checking permissions

[JeePee]

Hi,

When I have iAntivirus OnGuard active and start checking permissions with DiskUtility, the CPU-usage goes to the max and stays there. There also seems to exist a second iavd...

I'm using a MacBook Pro 15" 2.33 Ghz and was able to reproduce it. Also turning OnGuard off and shutting iAntivirus down didn't solve the problem. Stopping DiskUtility wasn't good enough too...

If you need more info, let me know.

[NSArchitect]

Originally Posted by JeePee

Hi,

When I have iAntivirus OnGuard active and start checking permissions with DiskUtility, the CPU-usage goes to the max and stays there. There also seems to exist a second iavd...

I'm using a MacBook Pro 15" 2.33 Ghz and was able to reproduce it. Also turning OnGuard off and shutting iAntivirus down didn't solve the problem. Stopping DiskUtility wasn't good enough too...

If you need more info, let me know.

Hi JeePee, we experienced elevated CPU usage while DiskUtility was checking permissions but it settled back down once the check was complete. This is expected. We were unable to recreate the problem you were seeing with 2 instances of iavd running, and suspect the continued CPU usage is related to that. Could you please confirm whether you were running iAntiVirus beta 2 when this happened? If not then please try with iAntiVirus beta 2 (www.iantivirus.com/download)

In addition to this, could you please tell us whether you are running any other antivirus or antimalware applications on your MacBook Pro?

Thanks for your help with this!

[JeePee]

Hi NSArchitect,

Yes, I'm running the latest version, Public Beta 2 and no I'm not running any other antivirus-program. I will do some testing, to see which program might interfere with iAntivirus.

[JeePee]

I uninstalled MozyBackup, stopped the CleanApp Daemon and NetBarrier X4 and hoped that everything would be fine, but it wasn't.

I started DiskUtility and started Check Permissions. iavd immediately jumped to 99%, together with a proces called installdb and while it's quite warm here in The Netherlands right now, my MacBook Pro started to run hot and the fan was going crazy.

I then stopped the Check Permissions, but iavd and installdb kept taking all the CPU, so I closed DiskUtility and both processes disappeared. A relief.

So I now have no idea what causes the iavd to go to the max, only that there might me some connection to the proces called installdb (I could reproduce this all the time) and possibly repair_packages (I didn't try this, because I didn't want to overheat my MBP).

If you need my systemprofile, I can send you that. I'm running Mac OS X 10.5.4.

[JeePee]

When I take a look at both iavd-processes, I see that one comes from launchd and the other comes from iantivirus. See attachment, does that help? (the second picture was taken after I quited installdb by hand).

By the way, checking permissions takes quite a few minutes on my MBP and even if there's one iavd running as a proces, it goes to the max. Even when it does settle back down after the check is complete, I don't believe it's necessary to take so much CPU and even when it is, I don't like it.

[JeePee]

They're back... I see 2 iavd-processes, without doing anything with iAntivirus.

[Ilgaz]

If you use "fseventer" while checking permissions, you will see thousands and thousands of tiny files being created in tmp directory. I guess it has something to do with that fact that for an antivirus, if a file is created, you gotta check it (at least its header).

This is a guess only.