Networking performance for microkernels

Performance measurements for network protocols in microkernel systems are typically two to five times slower than comparable macrokernel systems. It is shown that user-level network protocols have performed poorly because they rely on code designed to run in a kernel environment. As a result, they m...

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Bibliographic Details
Main Authors: Maeda, C., Bershad, B.N.
Format: Conference Proceeding
Language:English
Subjects:
Aging
Computer science
Costs
Delay
Emulation
Kernel
Measurement
Network servers
Operating systems
Protocols
Online Access:Request full text
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Summary:Performance measurements for network protocols in microkernel systems are typically two to five times slower than comparable macrokernel systems. It is shown that user-level network protocols have performed poorly because they rely on code designed to run in a kernel environment. As a result, they make assumptions about the costs of primitive protocol operations such as scheduling, preemption, and data transfer which can require substantial overhead to satisfy at user level. Good user-level protocol performance can be achieved by restructuring protocol servers to take advantage of microkernel facilities, rather than ignore them.< >
DOI:10.1109/WWOS.1992.275670