顶尖应届-Linux内核优化研究员(存储优化)-软件
北京
校招
正式
软件研发类
职位描述
1、跟踪 Linux mainline 存储 / MM 子系统最新演进(folio、mTHP、large folio、ZNS、FUSE passthrough、io_uring 等),评估落地可行性; 2、调研内存管理、文件系统与存储介质相关领域的最新研究论文,洞察各类“省空间”的方案; 3、针对小米业务负载特征(短视频、游戏、AI Agent 本地化),设计并实现新型压缩 / 去重 / 分层存储方案; 4、构建存储效率量化评估体系(容量、性能、寿命、功耗四维); 5、向 Linux / AOSP 社区贡献 patch,建立小米在存储方向的技术影响力; 6、与存储原厂共建 OS–Device 协同接口规范。
职位要求
1、计算机系统结构 / 操作系统 / 存储系统方向博士; 2、在 OSDI / SOSP / FAST / ATC / ASPLOS / EuroSys / MICRO / HPCA / ISCA 中以一作发表论文 ≥ 1 篇; 3、熟悉 Linux Kernel 源码,对 MM / FS / Block / IO Scheduler 中任一子系统有深度 hack 经验。 加分项(满足任意一项即可) 1、Linux Kernel mainline 有独立 commit 记录; 2、F2FS / EROFS / Btrfs / XFS 等文件系统社区贡献; 3、熟悉 NAND Flash / FTL / ZNS 内部机制; 4、精通 Rust / eBPF,对 Rust-for-Linux 有贡献。
职位信息
课题名称及内容:
【课题名称】 面向移动终端的存储效率优化与"存储介质—系统软件"协同研究 【课题内容】 围绕"存储涨价"带来的单机 BOM 压力,从两条主线切入: 1. 存储空间效率(省容量) - 新一代透明压缩文件系统演进:F2FS / EROFS 压缩算法选型(LZ4 / ZSTD / 硬件压缩)、压缩粒度与随机访问权衡 - 应用级冷热数据识别与分层存储(Hot–Warm–Cold–Frozen); - 系统/应用镜像的块级去重、增量管理与 OTA 瘦身; - Android App Cloning、多用户场景下的 CoW 与共享优化; 2. 存储寿命与性能(省介质、省内存) - UFS 4.x / UFS 5.0 Zoned Storage(ZUFS)与内核 zonefs、F2FS ZNS 协同 - 写放大(WAF)建模与基于强化学习的 GC / Wear-Leveling 策略 - ZRAM / swap-on-UFS 的分级换入换出与功耗/寿命联合建模 - 大内存压力场景下,内存使用效率优化,降低 LPDDR 容量需求
投递

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