What is the SQL used to create the Running Vusers graph in LoadRunner Analysis?

问题

In HP LoadRunner Analysis, there is a running vusers graph that shows the current number of virtual users that are running throughout the test. An example graph is shown below.

Does anyone know what is the SQL used to create the data for this graph? I know the data is stored in the LoadRunner analysis MDB database directly? ie An_Session1.mdb, though I am unable to determine the SQL Query.

Thanks

回答1:

I've refined the query a bit so I post a new answer instead of editing the previous one.

This produces columns that contain the CUMULATIVE count of vusers for a specific action over time. Please note that the output is not linear, it only contains a row when something has happened (x-axis).

SELECT
 M.[End Time] AS RelTimeSec, 
 M.[VUser ID] AS VuserID,  
 M.[VUser Status ID] AS StatusID, 
 S.[Vuser Status Name],
 ( SELECT 
     Count( VuserEvent_Meter.[VUser Status ID] )
   FROM 
     VuserEvent_Meter 
   WHERE 
     VuserEvent_Meter.[InOut Flag]=1 AND
     VuserEvent_Meter.[End Time]<=M.[End Time] AND
     VuserEvent_Meter.[VUser ID]>0 AND
     VuserEvent_Meter.[VUser Status ID]=1
 ) AS CumulReady,
( SELECT 
     Count( VuserEvent_Meter.[VUser Status ID] )
   FROM 
     VuserEvent_Meter 
   WHERE 
     VuserEvent_Meter.[InOut Flag]=1 AND
     VuserEvent_Meter.[End Time]<=M.[End Time] AND
     VuserEvent_Meter.[VUser ID]>0 AND
     VuserEvent_Meter.[VUser Status ID]=2
 ) AS CumulRun,
( SELECT 
     Count( VuserEvent_Meter.[VUser Status ID] )
   FROM 
     VuserEvent_Meter 
   WHERE 
     VuserEvent_Meter.[InOut Flag]=1 AND
     VuserEvent_Meter.[End Time]<=M.[End Time] AND
     VuserEvent_Meter.[VUser ID]>0 AND
     VuserEvent_Meter.[VUser Status ID]=3
 ) AS CumulPause,
 ( SELECT 
     Count( VuserEvent_Meter.[VUser Status ID] )
   FROM 
     VuserEvent_Meter 
   WHERE 
     VuserEvent_Meter.[InOut Flag]=1 AND
     VuserEvent_Meter.[End Time]<=M.[End Time] AND
     VuserEvent_Meter.[VUser ID]>0 AND
     VuserEvent_Meter.[VUser Status ID]=4
 ) AS CumulQuit

FROM
 VuserEvent_Meter M 
INNER JOIN 
 VuserStatus S ON M.[VUser Status ID] = S.[Vuser Status ID]
WHERE
  M.[InOut Flag]=1 AND M.[VUser Status ID] IN (1,2,3,4) AND M.[VUser ID]>0
ORDER BY
 M.[End Time]

Outputs something like:

RelTimeSec  VuserID StatusID    Vuser Status Name   CumulReady  CumulRun    CumulPause  CumulQuit
  15    1   2   Run     1   1   0   0
  15    1   1   Ready   1   1   0   0
  30    2   2   Run     2   2   0   0
  30    2   1   Ready   2   2   0   0
  45    3   1   Ready   3   3   0   0
  45    3   2   Run     3   3   0   0
  60    4   2   Run     4   4   0   0
  60    4   1   Ready   4   4   0   0
  75    5   1   Ready   5   5   0   0
  75    5   2   Run     5   5   0   0
  90    6   2   Run     6   6   0   0
  90    6   1   Ready   6   6   0   0
...
1687    88  4   Quit    82  82  0   19
1687    86  4   Quit    82  82  0   19
1687    85  4   Quit    82  82  0   19
1687    87  4   Quit    82  82  0   19
1697    113 2   Run     83  83  0   19
1697    113 1   Ready   83  83  0   19
1712    114 1   Ready   84  84  0   19
1712    114 2   Run     84  84  0   19
1727    115 1   Ready   85  85  0   19
1727    115 2   Run     85  85  0   19
1742    116 2   Run     86  86  0   19
1742    116 1   Ready   86  86  0   19
1747    89  4   Quit    86  86  0   23

回答2:

I assume you mean the analysed results in this case.

If you open the .mdb file and have a look at the "VuserEvent_meter" table you will find all the needed data there.

It references the VuserStatus table for what the exact event was. Here's the SQL (written in Access):

SELECT
 [M.End Time] AS RelTimeSec, [M.VUser ID] AS VuserID,  [M.VUser Status ID] AS StatusID
FROM
 VuserEvent_Meter M 
WHERE
  [M.InOut Flag]=1 AND [M.VUser Status ID]>0 AND [M.VUser ID]>0
ORDER BY
 [M.End Time]

If you want to include the actual event name then you need to JOIN the [VuserStatus.Vuser Status Name] column, based on the [M.VUser Status ID] = [VuserStatus.Vuser Status ID].

I hope this points you in the right direction.

来源：https://stackoverflow.com/questions/8221424/what-is-the-sql-used-to-create-the-running-vusers-graph-in-loadrunner-analysis

标签

sql

performance

ms-access

performance-testing

LoadRunner