Dong Du

Graph-based approximate nearest neighbor search (ANNS) drives high-performance vector search for AI systems. Nowadays, GPU becomes the emerging ANNS platform for its high performance and cost efficiency. However, GPU’s limited memory capacity hinders graph ANNS systems from scaling to billion-lev...

High resource utilization is significant for cloud vendors. To achieve this, a common practice is to co-locate low-priority batch workloads (typically Spark-based analytics) with high-priority online services, while strictly maintaining Service Level Objectives (SLOs). This paper presents an empi...

While eBPF has become the de facto standard for kernel customization in cloud-native systems, its design implicitly assumes a single trust domain. Allowing multiple tenants to deploy their own eBPF programs breaks this assumption, making the system both insecure and inefficient. We identify the r...

File systems are critical OS components that require constant evolution to support new hardware and emerging application needs. However, the traditional paradigm of developing features, fixing bugs, and maintaining the system incurs significant overhead, especially as systems grow in complexity....