# CXLmem

**Repository Path**: src-oepkgs/CXLmem

## Basic Information

- **Project Name**: CXLmem
- **Description**: 用 Rust for Linux 为 openEuler 实现支持 CXL.mem 协议的仿真测试设备
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2023-04-28
- **Last Updated**: 2024-02-07

## Categories & Tags

**Categories**: Uncategorized

**Tags**: openeuler-incubator

## README

# xalloc

This lib is used to allocate normal DRAM-based memory and CXL-based memory using Rust.

Generally, for normal DRAM-based memory, we add a wrapper above [jemalloc](https://github.com/tikv/jemallocator). For CXL-based memory, because CXL-based memory can be transfered into cpuless numa-node memory, we enable specific numa node memory allocation. 

*To learn how to transfer simulated CXL-based memory into NUMA node memory, you can refer to [CXL Usage](https://github.com/Tom-CaoZH/CXL-101/blob/master/docs/CXL_Usage.md).*


## APIs

``fn new(memory_type: MemoryType) -> Self``

``fn allocate(&self, size: usize) -> *mut u8``

``fn allocate_cxl_mem(&self, size: usize, preferred_node: i32) -> *mut u8``

``fn deallocate(&self, ptr: *mut u8, size: usize)``


## Examples

You can see examples [here](https://github.com/Tom-CaoZH/xalloc/blob/master/xalloc/src/bin.rs).

## Referrence

[memkind](https://github.com/memkind/memkind)

[Simplified Interface to Complex Memory](https://github.com/lanl/SICM)

[Scalable Memory Development Kit(SMDK)](https://github.com/OpenMPDK/SMDK)