Tomasz,
We understand your concern, we apologize. The AVG may vary in its memory size depends on the task undertaken. AVG will always run in background and check for the issue, at the mean time, if you use multitasking, there is a chance to increase of memory usage. And if possible, please do provide us the screenhot http://avgclick.me/getscreenshot of your memory usage. Thank you!
I have AVG anti-virus software version 16.131.7924, running on Windows7. Things have started slowing down recently I have finally had enough after noticing a lot of disk activity. What I found is avgcsrva.exe which, if it does not belong to AVG, at least lives in its directory, taking almost 1GB of memory (1072545792 to be exact). And it keeps growing - it is now more than it was in the morning. There are 2GB on this machine, and the next-most-hungry process, Firefox with 92 tabs open, takes a bit over 300MB. Even Acrobat doing OCR of 500-page book in one go does not come close - I ran it to find out. So I deal with swapping, using up the spindles (RAID1 diskset) and slowing everything down. Questions:
1. Is there a way to bring the memory usage down to some sane level?
2. Is there a way to prevent it from behaving the way it does?
Whatever it is that it does, there is NO justification for taking up 50% of memory.
Not to dismiss what Ranjani wrote, but does anybody else have any ideas about possible answers to the last two questions in this thread?
Hello Tomasz,
We are sorry for the inconvenience caused. Please do not worry, the memory usuage will generally gets increased due to an update error or can happen if the avgcsrva.exe is corrupted and running in a loop. To fix this issue, we need to completely remove all the old traces of AVG and perform a clean installation of latest version of AVG. As the remote technician tried that and got error. They have tried to collect the error log and it seems to be failed. Your case have been escalated to the senior team without the logs. They will sure be contacting you very soon with the solution on this. We appreciate your patience.
Thank you
Tomasz,
Thank you for your information. We certainly understand your concern. We have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve your issue. Thank you!
Tomasz,
We understand your concern, we apologize. The AVG may vary in its memory size depends on the task undertaken. AVG will always run in background and check for the issue, at the mean time, if you use multitasking, there is a chance to increase of memory usage. And if possible, please do provide us the screenhot http://avgclick.me/getscreenshot of your memory usage. Thank you!
Tomasz, For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.
AVG Guru
@Alan: THX! Now could You also shed light on "Answering" a specific post? I cannot seem to find a way to "Answer" under either Your or Ranjani's post and answering my own seems rather silly!
@Ranjani - screenshot attached
As You can see, avgcsrva.exe increased it's memory usage since the original post. Additionally, as I can see now, processes whose names start with "avg" between them have eaten 1399896kB of memory. There are 13 instances of avgrsa alone - and they all do… nothing at all. I watched that display for a while; whenever I open a file, there is a new instance, it is active for a few seconds and then… doesn't die.
Additional questions:
3. can I kill them as zombies? It won't resolve the biggest problem, though;
4. To quote: "AVG will always run in background and check for the issue" - what is "the" issue? Definite article, to my immigrant mind, implies a reference to the issue under discussion - which is incredible memory usage by Your process. So, did AVG miss it this time? Can I somehow shake it out of its slumber? 
4. Could You, please, explain what You meant by "(…) if you use multitasking (…)"? I was not aware one had a choice in the matter on Windows 7, but would be glad to find out otherwise!
The original questions stand undisturbed.