The Linux Programming Interface: a linux and unix system Programming Handbook
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SYSTEM AND PROCESS INFORMATION 223 12.1 The /proc File System................................................................................................. 223 12.1.1 Obtaining Information About a Process: /proc/ PID ................................... 224 12.1.2 System Information Under /proc.............................................................. 226 12.1.3 Accessing /proc Files ............................................................................ 226 12.2 System Identification: uname() .................................................................................... 229 12.3 Summary.................................................................................................................. 231 12.4 Exercises .................................................................................................................. 231 13 FILE I/O BUFFERING 233 13.1 Kernel Buffering of File I/O: The Buffer Cache .............................................................. 233 13.2 Buffering in the stdio Library ....................................................................................... 237 13.3 Controlling Kernel Buffering of File I/O ........................................................................ 239 13.4 Summary of I/O Buffering .......................................................................................... 243 13.5 Advising the Kernel About I/O Patterns........................................................................ 244 13.6 Bypassing the Buffer Cache: Direct I/O........................................................................ 246 13.7 Mixing Library Functions and System Calls for File I/O .................................................. 248 13.8 Summary.................................................................................................................. 249 13.9 Exercises .................................................................................................................. 250 tải về 6.93 Mb. Chia sẻ với bạn bè của bạn:
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