Desay SV

BSP驱动开发专家(智能座舱)

Desay SV  •  Onsite  •  5 months ago
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Job Description

BSP驱动开发专家(智能座舱)惠州全职软件类职位描述1、内核定制与裁剪:根据产品硬件平台和业务场景,对 Linux 内核进行定制化配置、模块裁剪与功能增强,提升启动速度与运行效率。
2、系统性能分析与调优:使用 perf、ftrace、eBPF、SystemTap 等工具对 CPU、内存、I/O、网络等子系统进行深度性能剖析,识别瓶颈并实施优化。
3、调度器与实时性优化:针对低延迟或高吞吐需求,调整 CFS 调度策略、优化 RT 调度参数,或设计适配特定硬件架构(如 ARM Big.LITTLE)的任务分配机制。
4、内存管理优化:优化页分配、slab/slub、OOM 行为、swap 策略等,提升内存使用效率,减少碎片与延迟抖动。
5、文件系统与存储栈调优:针对嵌入式设备或服务器场景,优化 ext4/xfs/btrfs 或 overlayfs 等文件系统参数,提升 I/O 性能与可靠性。
6、内核稳定性保障:分析并解决内核 panic、soft lockup、hard lockup、RCU stall 等疑难问题,提升系统长期运行稳定性。
7、技术方案设计与评审:主导内核级性能优化方案的设计、验证与落地,参与系统架构评审,提供底层技术支撑。
8、文档与知识沉淀:撰写内核配置指南、调优手册、故障排查流程等技术文档,推动团队内核能力提升。职位要求核心技术能力:
1、精通 C 语言,熟悉 GNU 工具链、交叉编译环境及内核构建流程(Kbuild);
2、深入理解 Linux 内核核心子系统:进程调度、内存管理、中断处理、VFS、块设备、网络协议栈等;
3、熟练使用 内核调试与性能分析工具:GDB/KGDB、crash、perf、ftrace、eBPF、Valgrind、strace 等;
4、熟悉 主流文件系统(ext4, XFS, Btrfs, OverlayFS)及 I/O 调度器(CFQ, BFQ, Deadline, NOOP);
5、了解 ARM/x86 架构,具备 SoC 平台(如 NXP、Rockchip、Qualcomm、Intel)开发经验者优先。
加分项:
1、有实时 Linux(PREEMPT_RT) 或 低延迟系统 开发经验;
2、参与过开源社区(如 LKML)或向主线内核提交过补丁;
3、熟悉容器底层技术(cgroup v1/v2、namespace、seccomp)或虚拟化(KVM/QEMU)性能调优;
4、具备 自动化性能测试框架 搭建经验(如 LTP、Phoronix Test Suite、自研 benchmark)。 投递
Desay SV

About Desay SV

Desay SV, one of the leading mobility technology companies, is committed to realizing a smarter mobility for all. Desay SV’s core business focuses on the efficient integration of three major areas of smart cabin, combined driver assistance, and smart service. We continuously develop highly integrated leading hardware and software algorithms to provide global customers with safe, delightful and sustainable mobility solutions and services.

Relying on 39 years of deep accumulation in the design, development, and production processes, Desay SV has continuously expanded its comprehensive strength in R&D innovation, customer service, and safety verification, and built a technical link from smart travel to smart transportation, actively responding to the challenges of the industry transformation. We meet the diverse needs of customers for different product portfolios and business development models, provide drivers and passengers with an excellent travel experience, and bring more room for imagination to future mobility.

Focusing on the sustainable development goal of "safety and reliability”, “win-win growth”, and “green environmental protection", Desay SV actively participates in the global carbon neutral strategy and integrates sustainable development into all aspects of business operations. While giving back to society, respecting every employee of the company, and creating a diverse working environment and development platform for employees, we encourage equality, openness, and coordinated development among all our branches around the world. Desay SV people adhere to the same mission and work together for the same goal—to create a safe, delightful and sustainable mobility.

Industry
Automotive & Mobility
Company Size
501-1,000 employees
Headquarters
Huizhou, CN
Year Founded
1986
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