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Flexible Computing: A New Framework for Improving Resource Allocation and Scheduling in Elastic Computing
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DOI：10.1109/TSC.2024.3489433.png)
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摘要
En 中文
Since the advent of cloud computing, Elastic Computing (EC) has become the standard architecture for resource allocation and scheduling. EC typically allocates computing resources based on predefined specifications, such as virtual machine or container flavors. However, these flavors are often constrained by fixed CPU-to-memory ratios, which frequently fail to match the actual resource needs of applications. As a result, cloud providers experience high resource allocation rates nearing saturation (>80%) but with low utilization (<25%). This study introduces Flexible Computing (FC), a novel approach to resource allocation and scheduling. Unlike EC, FC allocates resources based on an application resource usage profile, derived from the historical resource consumption of workloads, rather than relying on fixed specifications. Additionally, FC incorporates a real-time performance degradation detection mechanism to address performance issues caused by the noisy-neighbor effect when colocated workloads interfere with each other. FC dynamically adjusts resource allocation according to actual usage, ensuring that application performance meets Service Level Agreements (SLAs), while preventing resource waste and performance degradation from improper resource over-commitment. Large-scale experimental validations conducted on the FC architecture within Huawei Cloud data centers demonstrate that, compared to EC, FC can reduce computing resource consumption by over 33% while managing the same workloads. Furthermore, FC's real-time performance degradation detection model achieves a prediction error of less than 5% across various testing environments, highlighting its commercial viability.
Keyword:
Cloud computing
Resource management
Processor scheduling
Computer architecture
Quality of service
Real-time systems
Degradation
Data centers
Computational modeling
Logic
Elastic computing
flexible computing
performance degradation detection
quality of service
service level agreements
期刊
IF:
5.8
论文数:
2.2K
被引数:
6.5K
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