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7-92 IBM Informix OnLine Database Server Administrator’s Guide
Option Descriptions
-p Option
Use the -p option to display profile counts.
The first portion of the display describes reads and writes.
Reads and writes are tabulated in three categories: from disk, from buffers,
and number of pages (read or written).
The first %cached field is a measure of the number of reads from buffers
compared to reads from disk. The second %cached field is a measure of the
number of writes to buffers compared to writes to disk.
OnLine buffers information and writes to the disk in pages. For this reason,
the number of disk writes displayed as
dskwrits is usually less than the
number of writes executed by an individual user.
dskreads is the number of actual reads from disk.
pagreads is the number of pages read.
bufreads is the number of reads from shared memory.
%cached is the percent of reads cached, calculated as
100
*
(bufreads - dskreads)/bufreads.
dskwrits is the actual number of physical writes to disk.
pagwrits is the number of pages written.
bufwrits is the number of writes to shared memory.
%cached is the percent of writes cached, calculated as
100
*
(bufwrits - dskwrits)/bufwrits.