# memory-optimizer

**Repository Path**: mirrors_ColinIanKing/memory-optimizer

## Basic Information

- **Project Name**: memory-optimizer
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-12-22
- **Last Updated**: 2026-01-10

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

MemoryOptimizer -- hot page accounting and migration daemon
===========================================================

PREREQUISITE
------------

### Hardware

- Intel Skylake/Cascade Lake processors
- NVDIMM persistent memory

### Kernel

- LKML discussions:

	[[RFC][PATCH v2 00/21] PMEM NUMA node and hotness accounting/migration](https://lkml.org/lkml/2018/12/26/138)

- git repo:

		git clone https://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux.git
		git checkout -B ept-idle-v2-4.20 origin/ept-idle-v2-4.20

- kconfig:

		CONFIG_NUMA=y
		CONFIG_MEM_SOFT_DIRTY=y
		CONFIG_PROC_PAGE_MONITOR=y
		CONFIG_IDLE_PAGE_TRACKING=y
		CONFIG_KVM=m
		CONFIG_KVM_EPT_IDLE=m

### OS packages

Debian/Ubuntu and RHEL users can run this script to install packages:

	./install-deps.sh

### Build

	make

TOOLS
-----

- page-refs: PFN based page table scan
- task-refs: page table scan and migration for one process/VM
- sys-refs:  page table scan and migration for a set of process/VMs

sys-refs is most powerful and can run as daemon to manage hot/cold page
placement on DRAM/PMEM nodes.