|
Measures reported by Db2SortTest The
Db2SortTest, executed by an internal agent, tracks various statistics
pertaining to the sorts in a DB2 database. The measures
made by this test are as
follows:
| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Avg_sort_time
|
Indicates the
average sort time for all sorts performed by all applications
connected to a particular database. |
Ms/Sort
|
A high value can
point to a database with possible sorting problem (for example,
applications are spending too much time on sorts). See the SORT screen
for this database. The sort information for this database manager
should also be looked at instance level.
It may be necessary to increase the SORTHEAP configuration
parameter.
|
| Pct_sort_overflow
|
Denotes the
percentage of sorts that overflowed. |
Percent
|
Sort overflows
are sorts that ran out of sort heap and required disk space for
temporary storage. These sorts are not efficient, and when the value
of this measure is consistently high for a number of intervals, then,
it may be necessary to increase the SORTHEAP configuration parameter. |
|