60% ram usage on idle (8gb memory installed)

[Neuntoter]

I have 8gb of ram installed on my computer and somehow my system is using 4,9gb of ram on idle straight up from restart. (it starts from 1,25gb and climbs to 4,9gb over 2-3minutes)

This doesn't sound normal. Is it?

I also noticed that my CPU is acting quite weirdly on when idle - other 7 cores shown on task manager are running on calm 10-15% usage but one of them runs on 80-100% of usage. should this be the case or is there something wrong with this? HWMonitor states that still all core temperatures remain at 40-50c.

My system is:

MSi GTX 970
Intel i7 4790k
8gb DDR3 RAM
Win 7 home premium

 

[Colif]

download process explorer: https://technet.microsoft.com/en-us/sysinternals/processexplorer.aspx?f=255&MSPPError=-2147217396
its an OP version of task manager
run it and click view - Show process tree

private bytes = memory actually being used. working set is memory promised to the program

this explains what all colours mean: http://www.howtogeek.com/school/sysinternals-pro/lesson2/ and next lesson (see link at bottom of article) shows how to use to find problems.

 

[Neuntoter]

https://postimg.org/image/4djprm1pp/

This is what i see.

(for some reason that heaviest svchost of 1,7gb doesn't appear at all at task manager)

 

[Colif]

click on the process header so that its in tree view, and then scroll down to find that svhost and see what its got under it, the view you have is showing top memory user but not whats running under it. Most examples of svhost have something but not always.

Alas, the PID number didn't help as on my pc, it shows as a different process. Not entirely sure how those are allocated, the pid might be different on every machine. The description is the same for all occurances of svhost so that doesn't help.

http://www.howtogeek.com/howto/windows-vista/what-is-svchostexe-and-why-is-it-running/

 

[Neuntoter]

It shows only a process called wuauclt.exe under it, which says "windows update" on description. it says that this wuauclt.exe uses only 2,7mb of private ram, and 7mb on working set.

 

[Colif]

Disable Windows Update Service and reboot. If svchost RAM usage then remains normal for the next 24 hours, including ater an overnight shutdown - it means that you have a problem with Windows Updates.

http://www.sevenforums.com/performance-maintenance/390995-svchost-exe-crazy-high-cpu-usage-crazy-high-memory-usage.html
de ja vu: http://www.sevenforums.com/performance-maintenance/382305-svchost-consuming-60-ram.html

obvious thought: check if you got any windows updates...