I'm not sure if this a bug, error or what.
I have a couple of logs on a remote server. each morning I turn on Logviewplus, choosing a workspace and it's running like this whole day.
The problem is around midday when logviewplus taking more than 10GB of my RAM. I have to restart the application and load all logs again (at this point it's taking longer as logs getting bigger and bigger. I'm thinking about what can help to improve this.

Thanks Marcin.

So - this changes things a bit.  Having that much memory available to be released tells me that:

1.  Everything seems to be working normally.
2.  Your machine has a lot of memory. 

Garbage collection is very expensive and it is up to Windows to decide when to mark memory as free.  On a machine with a lot of memory, the answer may be - never.  Why bother? 

Is the 10 GB issue actually causing a problem?   Or is it more that "that seems excessive"?

LogViewPlus is a memory intensive program.  I would expect a 1 GB log file to take up about 4 GB of memory.  The reason for this is explained here:
https://www.logviewplus.com/forum/94/RAM-usage

That thread ended up as a dead end, but may shed some light here.

Thanks,

Toby

This 10GB it's making me a bit problem as this is a lot for me (I have 16GB but running, compiling etc) and logview taking around 80% of memory. So my pc slow down. 
I'm tailing 4/5 big files.

Thanks Marcin.

Memory is not like CPU and disk resources.  High memory usage is not a problem in itself.  Please see:
https://lifehacker.com/know-the-difference-between-good-and-bad-high-ram-usage-5958598
https://www.howtogeek.com/128130/htg-explains-why-its-good-that-your-computers-ram-is-full/

If you have 4 x 1 GB log files open, LogViewPlus may need up to 12 GB of memory (as described in the other thread).  This would be expected behaviour and the only way to decrease memory would be to close a file.  Note that closing the file may not free up the memory - Windows may choose not to do this until memory becomes scarce.  

Hope that helps,

Toby