Kbase P80131: What do the RB Reqst and DB Read columns mean in Promon Block Access
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
10/08/2004 |
|
Status: Unverified
GOAL:
What do the RB Reqst and DB Read columns mean
GOAL:
How to interpret the DB Reqst and DB Read columns in Promon's Block Access option
FIX:
DB Reqst
Shows the number of times the database buffer system was searched to find a block.
The buffer system is searched every time a process attempts to access a record. If the block that holds the requested record is already in memory, a disk read is not required.
DB Read
Shows the number of database disk block reads.
A database block must be read from disk when a process accesses a record not already in the database buffers.