Development and Implementation of a File System for Gannet Virtual ...

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SBA::Interface::read_bytecode(filename) // Open and read file named filename from system // Write the file into Gannet File System SBA::Interface::receive() SBA::Gateway::parse_task_description() // Write the task description // by calling read_bytecode() 47 Gannet File System // Open the task description from Gannet file system // Read the file and convert to bytecode Task description Task description Figure 4.3 Illustration Interface and Gateway Class after Gannet File system is integrated
Testing and Evaluation 5.1 Testing After implementation phase has been done, the system must be verified to ensure that the system meets its specification. To verify GannetFS file system, Software testing approach were chosen for system checking and analysis. 5.1.1 Software Testing Software testing is a dynamic technique of verification to ensure the quality and performance of the system. It examines the output of the system and its behavior to check that the system works as expected. In this project, two different type of testing were performed. The first one is defect testing. It is intended to reveal defect in the system so that inconsistency between the system and specification could be encountered. Unit testing, which is subset of defect testing, was carried out during the implementation phase. It provides a way to verify the individual units of code works properly. All tests are written on executable code where the input and the expected output are specified and automatically checked. UnitTest++ was implemented as automated unit testing during implementation and integration phase. The second one is validation testing. The purpose of this type of testing is to demonstrate that the system meets its requirements. GannetFS file system used set of test cases to ensure it works properly. Several test cases were derived from POSIX file system API test bench which focus on system stress testing. While other test 48
Page 1 and 2: Development and Implementation of a
Page 3 and 4: Abstract This project is addressed
Page 5 and 6: 4.3 Integration to Gannet Virtual M
Page 7 and 8: communication architecture (Kogel,
Page 9 and 10: Survey 2.1 Gannet System Overview G
Page 11 and 12: Figure 2.2 Service-based SoC Node (
Page 13 and 14: Service 2 Gannet Functionality Serv
Page 15 and 16: On the other hand, if large allocat
Page 17 and 18: Indexed allocation has different ap
Page 19 and 20: GannetFS will follow the RAM file s
Page 21 and 22: explained above are not suitable fo
Page 23 and 24: is quite small. Furthermore, the si
Page 25 and 26: Design 3.1 Requirement This section
Page 27 and 28: GannetFS file system is different w
Page 29 and 30: using this mechanism, the system al
Page 31 and 32: 3.2.2 File Allocation As discussed
Page 33 and 34: GannetFS file system treats these t
Page 35 and 36: 3.2.2.2 Directory Entry Data Struct
Page 37 and 38: Managing directory and path names i
Page 39 and 40: File Descriptor . . . . Stat Struct
Page 41 and 42: (Lewine 1991). Since POSIX also pro
Page 43 and 44: fields will remain the same. Howeve
Page 45 and 46: directory entry. Hence, there is no
Page 47 and 48: Uid 256 Uid 64 Uid Size 320 drwxrwx
Page 49 and 50: ack onto the stack to be reused and
Page 51: According to illustration on Figure
Page 55 and 56: MAX_NAME_PATH or fewer characters.
Page 57 and 58: 5.2 Evaluation Unlike testing which
Page 59 and 60: 5.2.2 Read Only Memory Evaluation I
Page 61 and 62: Operation Cycles Creat 6722 Open (F
Page 63 and 64: Conclusion This project was underta
Page 65 and 66: Silberschats, A., Galvin, P.B., Gag
Page 67 and 68: A. Requirement Specification Functi
Page 69 and 70: nbyte : Maximum number of bytes to
Page 71 and 72: 10. readdir() : Reads a directory.
Page 73 and 74: C. Testing TestCase00 Creates, writ
Page 75 and 76: TestCase04 This test case creates 1
Page 77: TestCase10 Writes data to and reads

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