Very high memory used and i don't know what for

[veprovina]

@Aragorn

No, the video memory buffer is not included in the output of free, because the video memory buffer is reserved by the BIOS or UEFI firmware and is not available to any other process.

Oh, i think you just answered my question in another thread!

Installed 32GB memory - Manjaro only sees 27GB?

So i bought another memory stick, i should have 32GB, but free -h lists total memroy as 27Gi.    ~  free -h   14s  total used free shared buff/cache available Mem: 27Gi 1,9Gi …

The free program sees 27Gi, so i’m assuming since bios is seeing 32GB and free only 27, that the missing 5 is the video memory? I mean, it used to have the same as yours 15Gi out of 16, but now, it suddenly took 5 GB? I mean, if it’s being used for video memory, i’m ok with that cause i’ll be using it, looking glass uses a bunch to display the VM stream and i play games, so if that’s dedicated 5Gi used for video memory, that’s ok with me.

I worried it might be corrupted or faulty RAM.

@Aragorn

Buffering and caching.

Buffers are data in memory that still needs to be written to disk. Cache is data that is read and kept into memory so that it wouldn’t need to be read from disk.

Reading from and writing to RAM is faster than reading from or writing to disk, plus that all disk I/O is a high-priority process that locks up the kernel until the data transfer is complete. Therefore, caching and buffering is more efficient, given that it does the I/O in the background, when the processor is idle.

Ah, i see, thank you for explaining! It’s good then that it’s using the memory efficiently.

@Aragorn

They are isolated containers in memory, each container holding the contents of each individual tab you have open in your browser. It uses up a lot of memory, but it’s more crash-proof.

Yes, brave has something similar although, Brave’s processes take up less RAM by a bit, and the browser seems faster so, i’ll use Brave for now.