Fast in-memory CRIU for docker containers
Fast in-memory CRIU for docker containers
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适用于 docker 容器的快速内存 CRIU
DOI:
10.1145/3357526.3357542
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Gavrilovska, Ada
中科院分区:
文献类型:
--
作者:
Venkatesh, Ranjan Sarpangala;Smejkal, Till;Milojicic, Dejan S.;Gavrilovska, Ada
Server systems with large amounts of physical memory can benefit from using some of the available memory capacity for in-memory snapshots of the ongoing computations. In-memory snapshots are useful for services such as scaling of new workload instances, debugging, during scheduling, etc., which do not require snapshot persistence across node crashes/reboots. Since increasingly more frequently servers run containerized workloads, using technologies such as Docker, the snapshot, and the subsequent snapshot restore mechanisms, would be applied at granularity of containers. However, CRIU, the current approach to snapshot/restore containers, suffers from expensive filesystem write/read operations on image files containing memory pages, which dominate the runtime costs and impact the potential benefits of manipulating in-memory process state.In this paper, we demonstrate that these overheads can be eliminated by using MVAS -- kernel support for multiple independent virtual address spaces (VAS), designed specifically for machines with large memory capacities. The resulting VAS-CRIU stores application memory as a separate snapshot address space in DRAM and avoids costly file system operations. This accelerates the snapshot/restore of address spaces by two orders of magnitude, resulting in an overall reduction in snapshot time by up to 10× and restore time by up to 9×. We demonstrate the utility of VAS-CRIU for container management services such as fine-grained snapshot generation and container instance scaling.
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DOI:
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发表时间:
2012
期刊:
Asia-Pacific Computer Systems Architecture Conference
影响因子:
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作者:
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DOI:
10.1109/ic2e.2017.42
发表时间:
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期刊:
2017 IEEE International Conference on Cloud Engineering (IC2E)
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发表时间:
2011
期刊:
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DOI:
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发表时间:
2009
期刊:
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影响因子:
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