Lock Manager Statistics Summary by Report Interval

This panel provides an overview of the locking activity that was recorded during a series of report intervals.


________________ ZHLKS    VTM     O2       V550.#P SE12 11/06/13 12:00:54   2 
>       Help PF1      Back PF3      Up PF7      Down PF8       Zoom PF11       
> H.A.J                                                                        
>                   Enter a selection letter on the top line.                  
>                                                                              
> A-SUBSYSTEM SUPPORT      B-BIND              C-BUFFER POOL    D-GROUP BP     
> E-DISTRIBUTED DATABASE   F-EDM POOL          G-LOG MANAGER    H-OPEN/CLOSE   
> I-SQL/RID/PARALLEL/PROC  *-LOCK/CLAIM/DRAIN  K-GLOBAL LOCK    L-DB2 COMMANDS 
> O-OPTIONS                                                                    
===============================================================================
>                LOCK MANAGER STATISTICS SUMMARY BY REPORT INTERVAL            
 HLKS                                                                          
+ Collection Interval:   1 min                           Start:  11/06 11:44   
+ Report Interval:       1 min   Combine Level:  NONE      End:  11/06 12:00   
+                                                                              
+                                      Total      Total  Escalate  Escalate    
+ Interval     Deadlocks  Timeouts  Suspends  Lock Reqs    to SHR    to EXC    
+ -----------  ---------  --------  --------  ---------  --------  --------    
+ 11/06 12:00          0         0         9       1432         0         0    
+ 11/06 11:59          0         0        12        227         0         0    
+ 11/06 11:58          0         0         6        160         0         0    
+ 11/06 11:57          0         0         6        156         0         0    
+ 11/06 11:56          0         0         0        133         0         0    
+ 11/06 11:55          0         0         0        140         0         0    
+ 11/06 11:54          0         0         0        609         0         0    
+ 11/06 11:53          0         0         0        144         0         0    
+ 11/06 11:52          0         0        80        283         0         0    
+ 11/06 11:51          0         0        40        287         0         0    
+ 11/06 11:50          0         0        24        198         0         0    
+ 11/06 11:49          0         0        54        271         0         0    
+ 11/06 11:48          0         0       121       4185         0         0    
+ 11/06 11:47          0         0       220      41511         0         1    
+ 11/06 11:46          0         0        77      54719         0         0    
+ 11/06 11:45          0         0       150        390         0         0    
===============================================================================

Navigation

For additional information about:
  • A report interval, move the cursor to the line you want and press F11 (Zoom). Each date/time displayed reflects the end of an interval.
  • Related topics, select one of the options at the top of the panel.
  • Other topics, use the PF keys.

Fields

Collection Interval
The time interval specified for the collection of near-term history data. This unit of time was specified when the Near-Term History Data Collector was started.
Start
The start time of the first interval in this display.
Report Interval
This field determines the report interval. It is set on the Near-Term History Report Option panel.
Combine Level
This field reflects the selected combine level. If Combine Level is NONE, the report interval is the same as the collection interval. Possible values:
HOURLY
Data will be reported in hourly intervals.
NONE
Data will be reported in the time unit specified by the collection interval.
End
The end time of the last interval in this display.
Interval
Provides the date and time that mark the end of the report interval.
Deadlocks
The total number of deadlocks detected during the interval.
Timeouts
The total number of times a suspension of a unit of work lasted longer than the Internal Resource Lock Manager (IRLM) timeout value.
Total Suspends
The total number of suspensions of a unit of work.
Total Lock Reqs
The number of requests to IRLM to obtain, change, query, and release locks, and also other IRLM requests.
Escalate to SHR
The number of times the allowable number of locks per tablespace was exceeded, causing a page (IS) lock to escalate to a shared (S) lock.
Escalate to EXC
The number of times the allowable number of locks per tablespace was exceeded, causing a page (IX) lock to escalate to an exclusive (X) lock.