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Top Forums UNIX for Advanced & Expert Users Ubuntu 14.04 - how to less ram usage Post 303028992 by Neo on Saturday 19th of January 2019 05:31:30 AM
Old 01-19-2019
Linux uses memory very efficiently, so if you have 32GB of RAM, you are in great shape for most applications. Linux will allocate to active processes and deallocate memory to idle processes as required.

To use "less RAM" as you ask, you need to manage the running processes.

Best is to look at the memory allocated "per process" and not only the "free memory" stats you posted.

Hope this helps.
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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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