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Efficient shared memory message passing for inter-VM communications

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Academic year: 2021

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Fig. 1. Performance impact of using a shared buffer: if communicating cores share their cache (a), the additional copy does not lead to a cache miss and therefore causes little overhead compared to a direct copy
Fig. 2. Overview of the virtual message passing device: shared memory buffers which can be mapped in userspace are provided for low latency communications (a,b,c)
Fig. 3. Architecture of the KVM hyper- hyper-visor Blockdriver KVM VirtIOdriver LGuest VirIOdriverNetworkdriver Messagedriver

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