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Top Forums UNIX for Advanced & Expert Users Command to check memory used or consumed by OS kernel Post 303000089 by sam@sam on Tuesday 4th of July 2017 06:49:50 AM
Old 07-04-2017
Hi Bakunin,

I have many application running on LINUX box, RAM allocated on this box is 15GB
I want to know how much memory is consumed by Applications and OS

Code:
              total        used       free     shared    buffers     cached
Mem:            15G         14G       627M       932K       1.4G       916M
-/+ buffers/cache:        12G       2.9G
Swap:           9G          898M       9.1G


From application level only 12 GB RAM is allocated out of it only 8 GB RAM is consumed currently

But I'm unable to figure out how much RAM is consumed by OS on an average?
If I have a margin of how much RAM is consumed to OS then in future if I need to add any new software/app I can recommend for extra RAM in LINUX BOX, hope you understand

Moderator's Comments:
Mod Comment edit by bakunin: please use CODE-tags for data too, thank you.

Last edited by bakunin; 07-04-2017 at 08:19 AM..
 

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NEW-KERNEL-PKG(8)					      System Manager's Manual						 NEW-KERNEL-PKG(8)

NAME
new-kernel-pkg - tool to script kernel installation SYNOPSIS
new-kernel-pkg [-v] [--mkinitrd] [--rminitrd] [--dracut] [--initrdfile=initrd-image [--depmod] [--rmmoddep] [--kernel-args=args] [--remove-args=args] [--banner=banner] [--multiboot=multiboot] [--mbargs=mbargs] [--make-default] [--add-dracut-args] [--add-plymouth-initrd] [--host-only] <--install | --remove | --update | --rpmposttrans> <kernel-version> DESCRIPTION
new-kernel-pkg is a tool used in packaging to automate the installation of a new kernel, including the creation of an initial ram filesys- tem image, updating of bootloader configuration, and other associated tasks. OPTIONS
-v Be verbose. --mkinitrd Create a new initial ram filesystem image. --rminitrd Remove an initial ram filesystem image. --dracut When creating a new initial ram filesystem image, use dracut(8) rather than mkinitrd(8). Used in conjunction with --mkinitrd . --initrdfile=initrd-image Use the specified file as the initial ram filesystem image. --depmod Create modules.dep and related files. --rmmoddep Remove modules.dep and related files. --kernel-args=args Use args as the boot command line for this kernel. --remove-args=args Remove specified kernel arguments for this kernel. --banner=banner Display banner as the banner text in the bootloader. --multiboot=multiboot-image Use multiboot-image as a multiboot image. --mbargs=mbargs Use mbargs as arguments to the multiboot image. --make-default Make this kernel the default boot option. --add-dracut-args Automatically generate dracut options and add them to the kernel command line. --add-plymouth-initrd Automatically add plymouth to the initial ram filesystem image. --host-only Make an initial ram filesystem image that is specific to the running system. --install kernel-version Install a new kernel. --remove kernel-version Remove an installed kernel. --update kernel-version Update the specified kernel. --rpmposttrans kernel-version Run the rpmposttrans for the specified kernel. SEE ALSO
grubby(8) installkernel(8) AUTHORS
Erik Troan Jeremy Katz Peter Jones Wed Apr 14 2010 NEW-KERNEL-PKG(8)
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