Kudos0

SymDaemon using nearly 2.5 gigs of ram

I've seen many posts where people complain of SymDaemon using too much cpu.  I'm not having that problem.  Instead it is blowing out the ram.  Running "top" on the command line yields:

PID COMMAND %CPU TIME #TH #WQ #PORT #MREG RPRVT RSHRD RSIZE

86 SymDaemon 2.1 08:38.32 9 4 148 1537 2358M 6200K 2450M

RSIZE == 2450M!!

I'm running Norton Internet Security 5 for Mac, Version 12.2 (76) on Mac OS 10.7.4 expanded from 2 gigs of ram to 8 (fortunately).  If I still had the original 2 gigs SymDaemon would have totally blown out the ram and caused me to thrash to a halt with no other apps running!  As it is, even expanded to 8 gigs I'm running out of ram with just a few apps open, and what's funny is that Activity Monitor doesn't show the culprit, only the "top" command.  That's got to be a memory leak.  Is there anything I can do short of disabling virus protection?

Thanks,

Kirk

Replies

Kudos0

Re: SymDaemon using nearly 2.5 gigs of ram

I've seen many posts where people complain of SymDaemon using too much cpu.  I'm not having that problem.  Instead it is blowing out the ram.  Running "top" on the command line yields:

PID COMMAND %CPU TIME #TH #WQ #PORT #MREG RPRVT RSHRD RSIZE

86 SymDaemon 2.1 08:38.32 9 4 148 1537 2358M 6200K 2450M

RSIZE == 2450M!!

I'm running Norton Internet Security 5 for Mac, Version 12.2 (76) on Mac OS 10.7.4 expanded from 2 gigs of ram to 8 (fortunately).  If I still had the original 2 gigs SymDaemon would have totally blown out the ram and caused me to thrash to a halt with no other apps running!  As it is, even expanded to 8 gigs I'm running out of ram with just a few apps open, and what's funny is that Activity Monitor doesn't show the culprit, only the "top" command.  That's got to be a memory leak.  Is there anything I can do short of disabling virus protection?

Thanks,

Kirk

Kudos0

Re: SymDaemon using nearly 2.5 gigs of ram

Sorry for the problem.

Does this problem happen consistently after you restart your Mac? Does the size start out small and then increase quickly, or does it start out at 2.5GB? And how long does it take to get up to 2.5GB?

There might be something going on that triggers the memory increase, but since you have Norton Internet Security installed, it could be any number of things causing the problem. You can try turning off the Automatic Virus Protection feature and seeing if that solves the problem, or we can try to figure out what the problem is without having to disable any protection.

Ryan McGann Technical Director Norton Business Unit, Symantec
Kudos0

Re: SymDaemon using nearly 2.5 gigs of ram

Hi Ryan,

I ran some experiments.  The last time I rebooted, it blew up to 1.3 gigs within a minute of start up.  It held there for a couple of days, then yesterday when I woke up the machine in the morning, it jumped to 2.7 gigs, again within a minute of waking up.  This morning it jumped to 3.89 gigs (I can send you a screen grab if necessary).  As you recommended, I tried turning off "Automatic Virus Protection" (doesn't that leave me vulnerable?) and rebooted.  Same thing, it blew up to 1.3 GB in just over a minute, and kept my CPU pegged at 100% for several minutes.  I also tried to see if there was any correlation to the ram usage and what other apps where open.  I run some pretty intensive 3D graphics software at times (houdini).  There was no increase in SymDaemon's footprint while houdini was live, and houdini's footprint was smaller than SymDaemon's even with a fair amount of high res geometry in the scene.  If a virus scanner is using more ram than 3D software, that can't be right!

Thanks,

Kirk

Kudos0

Re: SymDaemon using nearly 2.5 gigs of ram

I see I'm not the only user with this problem.  Here is a similar thread:

http://community.norton.com/t5/Norton-for-Mac/NIS-5-for-Mac-SymDaemon-uses-over-29GB-of-memory-4-64GB-real/td-p/735966

Today when I woke my computer, SymDaemon was using nearly 6GB.  I tried something new, I force quit the process, and it immediately restarted itself and once again blew back up to 1.3 GB of ram in about a minute.  It's getting to a point now that this virus protection has almost rendered my computer as useless as a virus would.  If I can't even force quit it without it coming right back and hogging up all my ram, do I need to just uninstall it and find a different product?

Kudos0

Re: SymDaemon using nearly 2.5 gigs of ram

Hi Ryan,

Did you find any solution? I'm having the same issue with SymDaemon: 2.81GB of Virtual Memory and 463.5MB of real memory. 

I appreciate your comments.

Kudos1 Stats

Re: SymDaemon using nearly 2.5 gigs of ram

Actually this memory usage is normal. Virtual memory is just that--virtual. Many applications use a lot of virtual memory because that includes all the memory used by things outisde of our control, such as all the code by the system frameworks. Virtual memory is moved into actual (physical) memory in chunks, when it's needed. The rest of the time the virtual memory is kept in the swap file.

Physical memory should be around 400MB-500MB for SymDaemon, which is enough memory to hold the antivirus definitions, the DeepSight list, the vulnerability proteciton signatures and other things we have to hold in memory.  It may fluctuate higher and then lower.

We're working to improve performance in coming releases and hopefully we'll have more to share in that area soon.

Ryan McGann Technical Director Norton Business Unit, Symantec
Kudos0

Re: SymDaemon using nearly 2.5 gigs of ram

Thanks Ryan for your answer. 

Surprinsinly SymDaemon is using today 17.6MB of real memory (and 2.38GB virtual), which I find fantastic since my macbook pro is running smoothly.

I look forward new releases.

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