Shulou(Shulou.com)06/03 Report--

First, the role of 1.cpu CPU, the main hardware component of the server: there are mainly computing and control functions that focus on information points: the number of paths and cores (that is, the number of cpu; cores on the server is the ability to process data in parallel) 2. The role of memory: temporary storage of data to ease the pressure on the disk, storage speed is faster than the disk focus on information points: buffering and caching (buffering is a buffer written in memory and does not need to be written to disk A cache is a cache area that is read into memory from disk. High concurrency Storage / read data (Portal) process Storage data: CPU receive processing data-> Save in memory-> permanently save to disk to ease storage pressure read data: CPU receive processing data-> read in memory permanently save to disk read data: CPU receive processing data-> read and save in memory In the disk file) 2 Quick move the cursor to the beginning of the line Ctrl+a move the cursor quickly to the end of the line Ctrl+e move the cursor left and right according to the word Ctrl+ ← → 3 Quick Operation Command Information cut the contents before the cursor Ctrl+u cut the contents behind the cursor Ctrl+k cut each string information as separated Crtl+w paste the cut Ctrl+y4 special Special function shortcut interrupts or cancels command execution process Ctrl+c screen clearing operation Ctrl+L enters locked state Ctrl+s exits locked state Ctrl+q

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