pgpgin and pgpgout - Linux Counters in /proc/vmstat -

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I am writing an application that collects the overall system I / O data. I was thinking that page-in and Two counters for page-out, 

  pgpgin pgpgout

contains pages written in / proc / vmstat, and all disc- Based block devices.

Please tell me, if you can!

I do not know why not. I mean, when you get a pagefault, the necessary block is needed to swap file systems / files, anywhere in VFS (i.e. memory-mapped I / O), where the file is mounted on the system Can come. I do not know why all block devices will not be calculated because they can all be used for paging (but it depends on what file system you have and how you can use them Do it)


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