Need explanation on Resident Set Size/Virtual Size
I found that pidstat would be a good tool to monitor processes. I want to calculate the average memory usage of a particular process. Here is some example output:
memory
how is page size determined in virtual address space?
Linux uses a virtual memory system where all of the addresses are virtual addresses and not physical addresses. These virtual addresses are converted into physical addresses by the processor.
System hanging when it runs out of memory
I’ve got an eeePC 900a: it has a 8GB flash as disk and only 1GB of RAM. The Linux distribution installed on it is ArchLinux.
How to fill 90% of the free memory?
I want to do some low-resources testing and for that I need to have 90% of the free memory full.
What page replacement algorithms are used in Linux kernel for OS file cache?
Linux uses the unused portions of memory for file caching, and it cleans up the space when needed.
What does the Virtual kernel Memory Layout in dmesg imply?
While going through the “Output of dmesg” I could see a list of values which i am not able to understand properly.
Is the MMU inside of Unix/Linux kernel? or just in a hardware device with its own memory?
So i always thought MMU is part of the unix kernel that translates addresses to physical addresses but in the MMU wiki page it says its a computer hardware that usually have its own memory, but that page doesn’t talk much about Unix/Linux operating systems
Out of swap – what happens?
On my Debian VM machine with 512 MB RAM and 348 MB swap, what will happen if I open a 1 GB file in an editor and get out of memory?
Shared library mappings in /proc/pid/maps
Why does /proc/pid/maps contain a few records for the same library ? Here is an example:
what does mean by HardwareCorrupted, DirectMap4k, DirectMap2M fields in “/proc/meminfo” file of Linux?
I am looking for description of following terms: