Displays main or temp (private) buffer cache I/O rates and compression ratios during the specified interval. These counters represent all activity for the server; the information is not broken out by device.
monitor_options -io
Output field |
Description |
|---|---|
Reads |
Physical reads performed by the buffer cache |
Lrd(KB) |
Logical kilobytes read in (page size multiplied by the number of requests) |
Prd(KB) |
Physical kilobytes read in |
Rratio |
Compression ratio of logical to physical data read in, a measure of the efficiency of the compression to disk for reads |
Writes |
Physical writes performed by the buffer cache |
Lwrt(KB) |
Logical kilobytes written |
Pwrt(KB) |
Physical kilobytes written |
Wratio |
Compression ratio of logical to physical data written |