utmem: Towards Memory Elasticity in Cloud Workloads
| Autor: | Nectarios Koziris, Stefanos Gerangelos, Konstantinos Papazafeiropoulos, Aimilios Tsalapatis, Stratos Psomadakis |
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| Rok vydání: | 2018 |
| Předmět: |
020203 distributed computing
Hardware_MEMORYSTRUCTURES business.industry Computer science Distributed computing Cloud computing 02 engineering and technology Virtualization computer.software_genre 020202 computer hardware & architecture Elasticity (cloud computing) Memory management Virtual machine 0202 electrical engineering electronic engineering information engineering business computer Host memory |
| Zdroj: | Lecture Notes in Computer Science ISBN: 9783030024642 ISC Workshops |
| DOI: | 10.1007/978-3-030-02465-9_12 |
| Popis: | In environments where multiple virtual machines are colocated on the same physical host, the semantic gap between the host and the guests leads to suboptimal memory management. Solutions such as ballooning are unable to modify the amount of memory available to the guest fast enough to avoid performance degradation. Alternatives such as Transcendent Memory allow the guest to use host memory instead of swapping to disk. All these techniques are applied at the memory management subsystem level, resulting in cases where abrupt changes in memory utilization cause unnecessary guest-side swapping. We propose Userspace Transcendent Memory (utmem), a version of Transcendent Memory that can be directly utilized by applications without interference from the guest OS. Our results demonstrate that our approach succeeds in allowing the guests to rapidly adjust the amount of memory they use more efficiently than both ballooning and Transcendent Memory. |
| Databáze: | OpenAIRE |
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