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Using the time built-in command of the shell, try timing the operation of the program in Listing 4-1 (copy.c) on your system.
a) Experiment with different file and buffer sizes. You can set the buffer size using the -DBUF_SIZE=nbytes option when compiling the program
b) Modify the open() system call to include the O_SYNC flag. How much difference does this make to the speed for various buffer sizes?
c) Try performing these timing tests on a range of file systems (e.g., ext3, XFS, Btrfs, and JFS). Are the results similar? Are the trends the same when going from small to large buffer sizes?
Document 20 detailed security requirements for inclusion in an RFP. These requirements should focus specifically on security of the logon process (authentication) of users into a networked application.
Design a rotating disk where the number of bits per track is constant
Assess the reliability of data gathered via paid Internet users. Describe and assess the evaluation method being used by the testing company, i.e., nonvisual and verbal recording of browser activities and tester's vocal comments.
Using Notepad, write some usable code that demonstrates the use of the command line compiler to compile the code into a java.class file. Place at least one debug line in the code using a Java library utility such as printf. Be sure to upload both ..
Suppose that you are a systems analyst on a project that involves modifying the sales order process. How many do you need to sample if you want 95 percent certainty that you have covered all variations?
Identify in which phase of the development process - How are the business perspectives and the technology perspectives of an informations system related.
What would be shared among those processes? What would be unique to each process? Why
The quality of a language that allows a programmer to express a computation clearly, correctly, concisely, and quickly is called _____.
For the same assumptions as Exercise F.1, what is the minimum bandwidth of the slowest link to beat overnight delivery? What standard network options match that speed?
discuss the different reasons for terminating a process and the commands used for this purpose.
Will IBM's plan to give away some of its IT assets and intellectual property and increase support of opensource software products like linux ,be a successful growth strategy in the "brutally competitive marketplace" in which it operates?why OR WHY..
Converts live multimedia content for real-time streaming
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