Diyu Zhou

To achieve high throughput, low latency, and high CPU efficiency, userspace network runtimes must perform three types of scheduling: 1) request preemption to minimize tail latency, 2) CPU allocation among services to avoid wasting CPU cycles when the load is low, and 3) request load balancing acr...

Cold memory rebalancing exhibits unique challenges to the existing memory overcommitment mechanisms, such as page tracking under Transparent Huge Pages (THP) and frequent remapping of page tables, leading to a series of throughput and latency issues. In this paper, we propose Blowfish, a memory o...

Enterprise SSDs integrate substantial computing resources (e.g., ARM processor and onboard DRAM) to handle I/O bursts. However, these resources significantly raise SSD monetary cost and suffer severely underutilized in JBOF deployments due to the sporadic nature of I/O bursts. In this paper, we p...

The diverse and complex modern workloads pose a major challenge for cache to remain effective across all scenarios, degrading the performance of critical systems such as web caches. Adaptive cache eviction algorithms promise to address this challenge by observing access patterns and adjusting the...

Compute Express Link (CXL) is an emerging industry standard that offers high-performance cache-coherent interconnects to heterogeneous devices, including host CPUs, computation accelerators, and memory devices. It aims to support high system scalability, peer-to-peer communication, and high-speed...