To check Linux page I/P and page O/P errors

There are few commands to check the Page i/p and page o/p errors in Linux m/c.

1. vmstat -s  // this command will list the page i/p and o/p values at one time. No option for regular interval.
2. sar -B 1 5  // this will display you the page values at regular intervals which you mentioned the delay.
3. iostat 1 5   // this will aslo display you the page values at regular intervals which you mentioned the delay.

To display size of a page in bytes, enter:

$ getconf PAGESIZE

OR
$ getconf PAGE_SIZE

Output:

4096