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With the growing popularity of cloud-leveraged infrastructure and services, the creation and operation of multiple virtualized boxes over a single physical box is increasing rapidly. It is however becoming difficult to maintain transport performance and security with an increasing number of inter-connections among them. To address this issue, in this paper, we utilize the eBPF-based packet tracing...
Recently diverse testbeds are built to experiment and verify new service ideas on SDN/Cloud-leveraged networking. In the early stage of verification, easy and speedy execution of experiments is required. Thus, in this paper, we introduce S-Box virtualized playground, where lightweight experiments are automatically executed only with the virtualized resources in a single box. The proposed S-Box concept...
In multicore processor, managing shared last level cache is important for overall system performance. Cache contention incurred by OS page caches is serious since the page caches are usually large but less likely reused. The non-reusable page caches, however, pollute the last level cache and interfere the performance of co-running memory-intensive applications. In this paper, we propose a new page...
Knowledge of dynamically changing achievable throughput is important in the design of an adaptive QoS-provisioning system over WLANs. In this letter, we introduce a novel measurement-based throughput estimation scheme and its practical realization for IEEE 802.11a WLAN environment. By utilizing traffic statistics measurements at the wireless AP (access point) in a timely manner, the proposed scheme...
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