Global ETD Search

1	WiFu Transport: A User-level Protocol Framework Buck, Randall Jay 06 April 2012 (has links) (PDF) It is well known that the transport layer protocol TCP has low throughput and is unfair in wireless mesh networks. Transport layer solutions for mesh networks have been primarily validated using simulations with simplified assumptions about the wireless network. The WiFu Transport framework complements simulator results by allowing developers to easily create and experiment with transport layer protocols on live networks. We provide a user-space solution that is flexible and promotes code reuse while maintaining high performance and scalability. To validate WiFu Transport we use it to build WiFu TCP, a decomposed Tahoe solution that preserves TCP semantics. Furthermore, we share other WiFu developers' experiences building several TCP variants as well as a hybrid protocol to demonstrate flexibility and code reuse. We demonstrate that WiFu Transport performs as well as the Linux kernel on 10 and 100 Mbps Ethernet connections and over a one-hop wireless connection. We also show that our WiFu TCP implementation is fair and that the framework also scales to support multiple threads. networking wireless mesh transport layer protocol framework flexibility code reuse scalability user-space networking protocol decomposition Computer Sciences
2	Rozšíření RedirFS do uživatelského režimu / Extending RedirFS to Userspace Pírko, Jiří Unknown Date (has links) The purpose of this thesis is to consider the rigth way how to make a user space extension of RedirFS, which works as a Linux kernel module and implement it. There is described a model of user and kernel spaces used in Linux and how this two spaces can communicate with each other. There are several communication mechanisms described with a description of use. Bandwidth and latency tests for all these mechanisms are implemented. Measurement results are presented and the suitable mechanism is chosen. The second part of the thesis is focused on redirctl and urfs. The first solution represents the RedirFS control tool, the second is the implementation of user space filters.
3	Decreasing Boot Time in an Embedded Linux Environment Hedberg, Alexander, Al Abduallah, Ahmed January 2023 (has links) - Linux Boot time Decrease Boot Time Yocto Project Init-System init-systems SystemD SysVinit Runit OpenRC s6-rc User Space Faster Boot BSc Thesis Computer Science Computer Engineering Computer Sciences Datavetenskap (datalogi)

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