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erasedisknow

Immunet eating up tons of CPU time on an i7-7700K

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So, I use Immunet on my home PC, which is a gaming laptop that was pretty damn high end when I got it, specs below. Recently, it had an issue with the graphics card, so I sent it back to the manufacturer for repairs, and when I got it back, I noticed that Immunet was eating up a LOT of CPU time, even when it wasn't scanning, though it occasionally would dip down to eating up like 20% of CPU time (which is still a lot for something that isn't supposed to be doing anything at the moment). I am running 6.2.4.10819, and I would like some explanation/solution/some course of action to fix this even if it is just "wait for the next patch", as the only way to get the CPU time back is to use task manager and manually stop the Immunet service. This is my main computer that I do all my gaming on, and I've already had to replace the not cheap graphics card once due to a combination of burnout and my dad touching the exposed GPU die with his finger, so I'm a bit paranoid about thermals.

Pic is of one of the spikes in CPU usage, up to 90% from just one process. EDIT: Could not attach image. Here's an Imgur link instead.

Specs:

  • Intel Core i7-7700K @ 4.20 GHz (may be slightly overclocked from the factory, when I look at the loads in task manager or the application I use to check the thermals, It typically says it's sitting at ~4.3 GHz)
  • 64 GB DDR4 RAM @ 2400 MHz
  • Nvidia Geforce GTX 1080 w/8GB VRAM
  • Running Windows 10 Pro

For storage, I boot from (and have Immunet installed on) a 120 GB SSD, and I have 2 1TB mechanical HDDs in RAID 0 storing my data.

Edited by erasedisknow

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Thanks for the concise, detailed report. I wish more forum members were as conscientious!

You mentioned your rig is used primarily for gaming. Does this spike in CPU cycles generally happen while you're actively participating in a game? Or is it more of a overall random occurrence in your opinion?

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Overall random occurrence. My problem isn't that it's happening mid game, but that it's happening AT ALL, which can cause things to heat up, and as I said, I'm rather paranoid about thermals.

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I thought maybe it might be temp files related to the games you play being scanned but if it's more random than that we can probably rule that out as the "primary" cause.

However, there have been times when we have advised users to create a Exclusion rule for a game's entire Program Files folder. That's something you can try to see if that helps at all. Not sure how to create an Exclusion? Let me know and I can give you detailed instructions.

Do you have any programs that constantly or frequently write to disk? One example would be a system backup/OS mirroring software package. That can also cause the behavior you're seeing as Immunet scans the backup files as they're being created & moved the the backup directory.

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I have no programs that frequently write to disk, the closest being steam (a requirement of any gaming computer) and Immunet eats up all the CPU time causing the processor to heat up while I'm just sitting on the desktop doing nothing. Like, watching youtube or looking at reddit, or chatting with friends on discord, and it slows everything down to almost a snails pace, like inputs not appearing to register for a few seconds after I press the button, something that should not be happening on a computer of this caliber.

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I agree with you, you do have a killer system and Immunet should not be slowing things down to a snail's pace like that!

I'm sure you've already done scans to rule out malware causing this so my next suggestion would be to submit a Support Diagnostic Tool report for analysis.

First open the All Programs directory -> find the Immunet folder & click on it -> click on Support Diagnostic Tool -> this will create a zip file to your desktop.

Then could you send that zip file as an attachment using the Forum's Personal Messenger feature to the Administrator Wookiee. Include a brief description of the issue & also mention that you started this topic in the Immunet Support (Issues & Defects) section.

Wookiee works directly with the development team so he would be better suited to further help you because I'm at a loss as what's going on with your rig!

Here's a link to Wookiee's profile page. Just click on the Message button but don't forget to log in first. https://support.immunet.com/profile/46674-wookiee/

Best wishes, Ritchie...

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Yeah, so I can't find the tool you're talking about. 

Here's a screenshot of my Immunet directory in program files: https://imgur.com/rFG4Wru

And here's a screenshot that's of the 6.2.4 folder, which contains the Immunet exe: https://imgur.com/tr4QFow

If the directory that immunet is installed in is incorrect, could I get a proper file path? I am capable of finding files better that way.

(again, using imgur because pitifully low attachment limit. I apologize if this is against the forum rules to circumvent the limit this way, but I need images to explain my plight more accurately than with words.)

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I'm still using Win 7, sorry about the misunderstanding.

I forgot that with Win 10 All Programs have been renamed to "All Apps" but the procedure is the same unless you've done a lot of personalization to your Taskbar.  Using imgur links for images is acceptable on this forum but I'm "not referring to Immunet's Program Files" directory however.

Click on the Start button then all apps, find Immunet's folder icon and click on it, select the Support Diagnostic Tool icon from the list & click on that.

If there is no Start button (some builds of 10 have no start button, it has to be added manually) or you still can’t find the Immunet icon in the All Apps listings use the search box on the Taskbar, type immunet.

If there is also no Taskbar search box simply press the Windows key on your keyboard and start typing.

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My wife has just complained to me that her machine keeps slowing down due to immunet hammering the CPU, its a simple A10 with 8Gig RAM, an SSD, mostly used for office apps.

I'm using immunet on my rig too. Currently I've not got a problem on my machine which is a similarly beefed up gaming PC much like erasedisknow. I have experienced the slow down issues in past versions of immunet.

Both using 6.2.4.10819

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This is a recurring issue that some users of Win 10 are seeing. The devs are now very aware of this issue and are working to resolve the excessive CPU usage. I'm sure a new bug fix build will be rolled-out soon that will address this. Sorry for any inconvenience this is causing.

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Guest Wookiee
On 4/5/2019 at 3:35 PM, Urban Haka said:

My wife has just complained to me that her machine keeps slowing down due to immunet hammering the CPU, its a simple A10 with 8Gig RAM, an SSD, mostly used for office apps.

I'm using immunet on my rig too. Currently I've not got a problem on my machine which is a similarly beefed up gaming PC much like erasedisknow. I have experienced the slow down issues in past versions of immunet.

Both using 6.2.4.10819

is immunet on the SSD on both machines or just one?

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On 4/9/2019 at 8:35 PM, Wookiee said:

is immunet on the SSD on both machines or just one?

We each have separate machines, both with SSD system drives. I'm continuing to use Immunet but have had to remove it from the wifes laptop as it became pretty unusable. I've Installed another mainstream free AV and everything's fine now. On the off chance it was behaving like this due to a virus I ran "housecall" via the web first then installed a replacement.

It seems the ClamAV is doing most of the damage in terms of sucking up the resources and was hitting 40-50% with the immunet executable sucking up the remainder. Perhaps there's a verbose logging mode you recommend in this thread so others can help pin this down.

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Hi Urban Haka, Immunet does have a verbose logging feature. If you would like to enable that and send the Support Diagnostic Tool logs to Wookiee (via Personal Message) that could possibly prove to be beneficial!

Here's how to enable Immunet's Verbose Tray Notifications. Open the UI and click on Settings ->  scroll down to the Notifications Settings bar and click on that -> turn Verbose Tray Notifications to the ON position -> click Apply.

After VTN is enabled be forewarned that you will start getting "many more" pop-up messages from Immunet. This is normal behavior when this debugging feature is enabled.

Regards, Ritchie...

P.S. - For anyone else that reads this thread please do not needlessly turn on Verbose Tray Notifications unless instructed to do so as this feature is used only for troubleshooting & debugging purposes. That's unless you don't mind dealing with a plethora of pop-up messages from Immunet!

 

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Hi all,

For anyone that was experiencing excessive CPU usage with Windows 10 we have some good news! A new 6.3.0.10988 build has been rolled-out that addresses this issue.

If you still have Immunet installed the update should be pushed to you through the UI. If not the newest installer package can be downloaded here. https://download.immunet.com/binaries/immunet/bin/ImmunetSetup.exe

More info about this new build can be found at this Announcements topic started by BradyK here. https://support.immunet.com/topic/4380-new-release-immunet-630/

Cheers, Ritchie...

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Immunet updated to 6.3.0
Getting random 100% CPU usage for sfc.exe. This even freezes the mouse every 1sec or so,  like sfc.exe is running Realtime Priority!!!

Cannot set priority or affinity for sfc.exe - Access Dennied.
So must Stop the Immunet 6.3.0 in services.

This renders PC unusable.

Running Windows 7,  high end PC

Edited by Lemmoncurry

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As I mentioned in a previous thread to this topic I too use Win 7 but I'm not seeing this behavior myself Lemmoncurry.

Are you using Immunet as a companion to another AV or security product? If so, did you create exclusion/exception/allow rules for the entire Program Files folders with both?

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As I write this the sfc.exe is ~90%
Not using any other Virus sodtware,  except malwarebytes.
Cant set priority for sfc.exe "access denied"

I cant live with this,  even the mouse freezes momentarily,  Its like sfc is running realtime priority.
 I  have some  exclusion/exception rules but not for any C drive folders,  all data is stored on a separate drive.

Also,  I used a separate SSD partition for Temp and Cache  files for progs  like FF,  TB,  and other apps.

1068703680_2019-07-01_111130-WindowsTaskManager.png.9f62be0fef85d32b7194be1ac432348e.png

Edited by Lemmoncurry

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I would also consider that unacceptable myself if Immunet was hogging up 89% of CPU cycles and over 314 megs of RAM on a continual basis for no seemingly apparent reason!

Do you have the ClamAV module enabled at this time? We encountered some excessive system usage with the module not long ago.

If you do, try disabling the ClamAV module and updates for it temporarily as a bit of an experiment to see if that has any positive effects. 

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Yes Lemmoncury, definitely let us know if disabling ClamAV has any positive effect on system usage.

Having the ClamAV module does give Immunet 'off-line' scanning capabilities and does provide an additional layer of protection. However there are some users that like to use just the ETHOS & SPERO cloud detection engines to keep system usage to a minimum, the less is more approach.

Actually, it has always been recommended if Immunet is to be used as a companion AV to a compatible paid AV product to disable the ClamAV module.

If Immunet is being used as a stand-alone AV solution then having ClamAV enabled is advised.

So in reality It's really up to the user how much malware protection Immunet provides.

This is my current setup, I use Panda Dome Pro & Immunet as a companion AV (ClamAV module disabled).

Since I too use Win 7 that's why I suggested turning off ClamAV as an experiment since I wasn't seeing any excessive usage with it disabled but you apparently still are.

Regards, Ritchie...

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I don't know if this is related but it could be, upon further examining the screenshot you provided it's evident you have a "bunch" of non-Windows processes running. You should only allow third-party programs to launch that absolutely need to be start-up programs during boot-up, like any security programs including Immunet.

This can have a really positive effect on both boot-up time & system resources being used! Something you might want to look into.

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Thanks for the advice.
I must get back to the point that when sfc.exe IS running,  it has High or Realtime priority, as indicated by the 98% CPU usage and "freezing " of other realtime tasks such as the mouse. The choice not to use CamAV module should not be based upon its making the PC unusable! Virus checking should be considered as "background" tasks, with no more than Normal priority.
Thus, it seems there is a design flaw in the implementation of ClamAV in Immunet.
Thu turning off ClamAV, is a useful workaround, but not the solution to this fault long term.

Thanks again.

Edited by Lemmoncurry

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There are some process' shown on that list that normally would not be there:  CCleaner,  rufus ...
There is only one process consuming 89% CPU ... Immunet
The only process causing a problem is immunet's sfc.exe. The only time this PC runs out of system resource is due to sfc.exe.

I dont think your suggestion is related.
Turning off ClamAV has worked around the issue,  so I feel it would be more productive to focus  on the root cause .

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Hello, 

Have you been contacted with a request to send us a support package so that we can investigate further? If not, would you please PM me. Thank you, Christine

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