Profiler Duration Column Value.

Jul 12, 2007

Hi Experts,

We have a VLDB ( few table with above 200 million records ). This database is used for performance testing by simulating for 150 users and executing all necessary functional flows.

When I examined the profiler results , I could see some very high values as shown below in the duration column for many events.

1521729
3462142
1624325
3211255
1248276
3903998

Does it mean that that SP or the T-Sql statement is taking this much time in milliseconds to execute and give the output ?

Any help would be greatly appreciated.

Thanks & Regards,

DBLearner

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Duration In Sql Profiler

Jan 20, 2005

If monitoring for duration with sql profiler, what does the number represent ie 2733906 is it milliseconds, thousandths, looked in BOL no clear definition

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Can someone please tell me what unit of measurement the Duration column is in when running SQL Profiler? I assume milleseconds, but am not sure.

I'm trying to filter on this and want to be sure I'm not missing anything.

Thanks!

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SQL Profiler Duration And CPU Baseline

Jan 9, 2007

Sarfaraz writes "I have captured SQL Profiler data. I was reviewing top running CPU intensive SQL statements. The Duration (in seconds) 1.39, 1.09, 0.16 and CPU (in seconds) 0.97, 0.95, 0.16 respectively for some SQL statements. How do I know what is the normal baseline for duration and CPU in order to determine the CPU intensive SQL statements.

Secondly same question for long running procedure duration 0.14, 0.11. What is the normal baseline here. Is this normal or too long.

Thanks,
Sarfaraz"

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Jul 20, 2007

Hi

I have a procedure in a history database that does insert into 3 tables inside a transaction. users complaint that the proc sometimes takes too long during heavy usage. I did some traces to see what is taking up the time, I found that the rpc duration was averaging > 500 ms (should only take 50ms). I checked to see if one of that statements were taking too much time, but only see the commit transaction statement taking around 500 ms). I check the avg disk queue to be around 30. ( this is on a single local disk) .

So is this definitely a disk issue, or is there something else I need to check

thanks

P

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Jun 19, 2007

Hello everybody,

I have a very stranger problem that I need to understand...
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Could to help me to identify why passes this?

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I ran Sql profiler and got the following results for a stored procedure

CPU of 1078;
Reads of 125464
writes of 0
Duration of 1882

how do i interpret the above results.
also what CPU and Duration is considered high and indicating a poor performing query.

I am using SQL Server 2005. Thanks

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Profiler was run against a database looking for "long running" queries. I used the Duration column to filter out the queries that I didn't want. When reviewing the output, I noticed that for some queries the StartTime was equal to the EndTime even though the Duration was set higher.
My question is, "What can account for this discrepancy and what inferences should I draw about the difference?"
Does the difference represent a resouce being locked or some other type of blocking (Duration) and once the query was allowed to run, it completed quickly?
TIA

=======================================
If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy. -James Madison, fourth US president (1751-1836)

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Jun 4, 2015

I have the following SQL query

SELECT
[Req_ID]
,[Service_Name]
,[Req_Started_Date]
,[Task_Name]
,[Task_Status]
,[Performer_Full_Name]

[code]....

Which works fine, but what I need to calculate the total duration of a request based on the duration of the tasks completed in the request based on Req_ID. I would like to use the CASE statement I have to determine the SLA_Mins for each task and add them together to get total request SLA_Mins.

Below is the create table schema and data

GO
/****** Object: Table [dbo].[MidrangeOtherSourceControl] Script Date: 06/03/2015 18:13:15 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[MidrangeOtherSourceControl](
[Req_ID] [float] NULL,
[Service_Name] [nvarchar](255) NULL,

[code]....

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The profiler output usually shows "0 - OK" in the error column. But it sometimes shows "1 - Error" or "2 - Abort" in this column. What do these error messages mean? I've looked around but haven't been able to find anything more detailed about what these two messages mean and how I can perhaps dig deeper to figure out what's going on. (When these values are displayed, CPU is usually taking a beating and the SPID runs this for at least 30 seconds before displaying information pertaining to this SPID).

Thanks much,

Smitha

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Jul 20, 2005

Is there a way to determine why the Textdata field has "NULL" for a value.The trace shows multiple "NULL" value records with the longest durations;many greater than 50,000ms. The {} indicate the TextData and Duration onthe line below:rownumber | textdata | Eventclass | ......| Duration |...966 | 15 | {NULL} | 24 smm5413 | 808 | Microsoft Office XP | misview012 | 78| {604636} | 2004-02-11 15:25:12.010 | 4747 | 0 | 469

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Aug 19, 2015

Is the SQL Server Profiler Reads Column Incorrect For Parallel Plans?

I often use profiler as one tool to identify bad plans. The reads column gives me a good indication of excessive IO to dig into and correct if necessary. I often use it with Showplan so I can see what a query does, replicate it and fix it.

However I have just lost some faith in it. I am looking at a poorly performing query joining five tables. A parallel plan has been generated and one table is being scanned (in parallel) due to a missing index. This table had in excess of 4 million rows in it. The rest hitd indexes well. However the entire query generates ONLY 12 READS.

Once corrected, a single processor plan is used. This looks really efficient and uses 120 reads. That looks the right figure to me.

Does the profiler only display one thread of a parallel plan perhaps? Or something else?

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Aug 19, 2015

I often use profiler as one tool to identify bad plans. The reads column gives me a good indication of excessive IO to dig into and correct if necessary. I often use it with Showplan so I can see what a query does, replicate it and fix it.

However I have just lost some faith in it. I am looking at a poorly performing query joining five tables. A parallel plan has been generated and one table is being scanned (in parallel) due to a missing index. This table had in excess of 4 million rows in it. The rest hitd indexes well. However the entire query generates ONLY 12 READS.

Once corrected, a single processor plan is used. This looks really efficient and uses 120 reads. That looks the right figure to me.

Clearly 12 reads is wrong. Does the profiler only display one thread of a parallel plan perhaps? Or something else?

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How To Run CAST On Duration

May 13, 2015

I found this nifty code on stackoverflow that works well but I'm trying to send the results to a text file and the column lengths are huge. I used CAST for the first line and it worked great but I can't seem to make it work with duration. Here's the original code:

SELECT
j.name,
h.run_status,
durationHHMMSS = STUFF(STUFF(REPLACE(STR(h.run_duration,7,0),
' ','0'),4,0,':'),7,0,':'),

[code]....

how to run a CAST on DURATION?

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Calculating Duration

Jan 18, 2007

I am trying to get a query that will allow me to report the time taken to complete a certain training module.

The database itself does not have a duration field so I am tring to get the duration by using MIN and MAX. I can get the timing for when the module was opened and the time for the last mouse click on it, from this I need to be able to calculate the time taken to complete.

Query I am using to get the basic info comes from 3 tables so I have only attached the relevent output. Query used is as follow:

SELECT *
FROM PPS_SCOS, PPS_TRANSCRIPTS, PPS_TRANSCRIPT_DETAILS, PPS_PRINCIPALS
WHERE PPS_SCOS.SCO_ID = PPS_TRANSCRIPTS.SCO_ID
AND PPS_TRANSCRIPTS.TRANSCRIPT_ID = PPS_TRANSCRIPT_DETAILS.TRANSCRIPT_ID
AND PPS_TRANSCRIPTS.PRINCIPAL_ID = PPS_PRINCIPALS.PRINCIPAL_ID
AND PPS_SCOS.NAME LIKE 'MTM-106 The Dangers of Smoking'
AND PPS_PRINCIPALS.NAME LIKE 'Nigel Cordiner'
AND PPS_TRANSCRIPTS.TICKET NOT LIKE 'l-%'
ORDER BY PPS_TRANSCRIPT_DETAILS.DATE_CREATED

Output:

pps_scospps_scospps_transcript_detailspps_principalspps_principals
SCO_IDNAME DATE_CREATED PRINCIPAL_ID NAME
136850MTM-106 The Dangers of Smoking08:17:2516287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:17:2516287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:17:4016287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:18:2516287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:18:5716287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:19:1416287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:19:4716287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:20:2116287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:20:4416287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:21:2616287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:22:1316287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:24:5516287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:25:1216287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:25:2916287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:26:4916287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:27:0216287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:27:2916287Nigel Cordiner
136850MTM-106 The Dangers of Smoking08:27:4316287Nigel Cordiner

Have added the column heading and the tables the output comes from.

Relatively new to SQL so any help would be greatly received.

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I have a query that displays number of hours duration in a jobs by months matrix. Here is a simplified version of my tables.

CREATE TABLE jobhead (
jobnum varchar (14) NULL,
jobcompletiondate datetime NULL
)

CREATE TABLE labordtl (
jobnum varchar (14) NULL ,
clockindate datetime NULL ,
clockintime decimal(6, 2) NULL ,
)
Here's an abbreviated query.

SELECT h.JobNum,
(CASE WHEN MONTH(h.JobCompletionDate) = 1 THEN datediff(day,MIN(l.ClockInDate),MAX(l.clockInDate)) ELSE 0 END) AS JAN,
(CASE WHEN MONTH(h.JobCompletionDate) = 2 THEN datediff(day,MIN(l.ClockInDate),MAX(l.clockInDate)) ELSE 0 END) AS FEB,
...
FROM JobHead h
INNER JOIN LaborDtl l ON h.JobNum=l.JobNum
WHERE JobCompletionDate>='20070101' AND JobCompletionDate <'20080101'
AND l.ClockInTime<>0
GROUP BYh.JobNum
,h.JobCompletionDate

The query shows, for each job, the month in which the job completed, and the number of hours it took to complete. I��m calculating the number of days�� duration by doing a datediff between the oldest and newest clockindates. I need to ignore adjustment transactions in the labordtl table �� these rows are easily identified as they have clockintime values of 0. So far, so good. Now here��s my problem.

There are some jobs which have only one ��real�? labor transaction �� this could happen if the job only took one day to complete. Other labor transactions may exist for that job, but let's say they are adjustments which we can ignore -- the date they were entered should not extend the duration of the job. In this situation, my datediff between the oldest valid transaction and the newest, returns 0. I don��t have to count hours between clockintime and clockouttime. The rule is simply that if there is only one "real" labor transaction, I need to count this as a 1 day job.

I thought a nested CASE statement or expression might be the way to go but I didn't make any real progress.

Any ideas to solve this problem would be appreciated.

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Hi!

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SQL 7.0 - run duration 12-13 hours
175+ columns with total record size=570
4.2M records with tablesize 2.5G

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ELSE NULL
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PaidToDt=CASE
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.
.
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Ticket_No (int)
Machine_No (int)
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End_Time (datetime)

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2013-08-05 10:15:00 |M1
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2013-08-05 10:11:00 |M2
2013-08-05 10:15:00 |M2
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/*
This SP has 2 functions.
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b) if @method='failures' displays failures/cancels/still executing jobs
It defaults to today's date. Specify @xdate for a different date
-- Louis Nguyen
*/

CREATE PROCEDURE UtilityJobsHistory
(
@method varchar(100)='duration'
,@xdate datetime=null
)
AS
set nocount on
set transaction isolation level read uncommitted

if @method='duration' begin

select @xdate=isnull(@xdate,getdate())

/*run_duration is in HHMMSS format; drop SS*/
/*run_staus: 1 complete 2 retry*/
/*step_id: 0 is final job outcome*/
/*run_date: yyyymmdd format*/

/*today's performance*/
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into #today
from msdb..sysjobs as a
join msdb..sysjobhistory as b
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where run_status in ('1','2') and step_id=0 and run_date =convert(varchar,@xdate,112)
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/*populate #D with dates in yyyymmdd format*/
create table #D (run_date varchar(50))
declare @idate datetime set @idate=@xdate
while @idate>dateadd(day,-7,@xdate) begin
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end

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into #avg7Days
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from #today as a
join #avg7days as b
on a.name=b.name
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return end

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Hi!

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exec [mydb]..sp_primary_keys_rowset N'Person',NULL
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A couple of more tables has this enomous duration others have about 5000 which seems more normal.

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/Magnus

Jesus saves. But Gretzky slaps in the rebound.

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In the past I have tinkered with the Execution History DTS package, which would need to be scheduled to run and pull over only the newest records - is there anything else besides this? (just let them sit in the table?)

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