Credits:
Author: Jesse Roberge
Date: 16 Nov 2009
Description
This code has been provided almost untouched (apart from the SP name). I did start to reformat, but it wasn't making it much more readable and wouldn't have displayed well within this page format.
It has also been left in SP format rather than the TVFs that I have used for most other DMV code as it produces 3 results sets:
Comprehensive information about
- The single connection that is currently the most resource intensive (the 'piggiest')
- Summary by Login/Host Name
- Summary By Session (SPID)
Code
Stored Procedure:
|
DROP PROCEDURE dbo.usp_ComprehensiveConnectionSummary
GO
/**
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Jesse Roberge - YeshuaAgapao@Yahoo.com
Reports summaries of connections, running requests, open transactions, open cursors, and blocking at 3 different levels of aggregation detail.
Also gives the piggiest running request for each grouping along with its identifying information, query batch text, statement text, and XML query plan.
Most useful for finding SPIDs thare being hoggy right now - activity monitor gives session-scoped resource consumption, this aggregates active request scoped resource consumption.
Also useful for quickly finding blocking offenders and finding programs that are not closing connections, cursors or transactions.
Returns 3 result sets:
Server-wide Total / Summary (No Group By)
Connections and requests grouped by LoginName, HostName, Programname
Connections and requests grouped by SessionID (can have more than 1 running request at a time if MARS is enabled)
Orders by ActiveReqCount DESC, OpenTranCount DESC, BlockingRequestCount DESC, BlockedReqCount DESC, ConnectionCount DESC, {group by column(s)}
Can run from a central 'admin' database location.
Requires VIEW_SERVER_STATE permission to work. DB-owner does not have this permission.
Sysadmin does have this permission. VIEW_SERVER_STATE can be granted as a separate permission to some or all dbo users.
Update 2009-04-28:
Now also gives the piggiest running request for each grouping along with its
identifying information, query batch text, statement text, and XML query plan.
Update 2009-09-21:
Fixed piggiest running request - Forgot the DESC in the ORDER BY
Tweaked the pigging score - cpu*(reads+writes) is now cpu*(reads*10+writes*10+logical_reads)
Added StatementStartPos, StatementEndPos, and StatementTextLength
Update 2009-10-15:
Added PendingIOCount, PiggiestRequestDatabseID, and PiggiestRequestDatabaseName
Required Input Parameters
none
Optional Input Parameters
none
Usage:
EXECUTE Util.Util_ConnectionSummary
Copyright:
Licensed under the L-GPL - a weak copyleft license - you are permitted to use this as a component of a proprietary database and call this from proprietary software.
Copyleft lets you do anything you want except plagarize, conceal the source, or prohibit copying & re-distribution (NDAs etc) of this script/proc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
see <http://www.fsf.org/licensing/licenses/lgpl.html> for the license text.
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**/
CREATE PROCEDURE dbo.usp_ComprehensiveConnectionSummary AS
--All connections
SELECT
ConnectionCount AS ConnectionCount,
OpenTranCount AS OpenTranCount,
OpenCursorCount AS OpenCursorCount,
ClosedCursorCount AS ClosedCursorCount,
BlockingRequestCount AS BlockingRequestCount,
ActiveReqCount AS ActiveReqCount,
OpenResultSetCount AS OpenResultSetCount,
ActiveReqOpenTranCount AS ActiveReqOpenTranCount,
BlockedReqCount AS BlockedReqCount,
WaitTime AS WaitTime,
CPUTime AS CPUTime,
ElapsedTime AS ElapsedTime,
Reads AS Reads,
Writes AS Writes,
LogicalReads AS LogicalReads,
PendingIOCount AS PendingIOCount,
[RowCount] AS [RowCount],
GrantedQueryMemoryKB AS GrantedQueryMemoryKB,
PiggiestRequest.session_id AS PiggiesstRequestSessionID,
PiggiestRequest.login_name AS PiggiestRequestLoginName,
PiggiestRequest.HOST_NAME AS PiggiestRequestHostName,
PiggiestRequest.program_name AS PiggiestRequestProgramName,
PiggiestRequest.DatabaseID AS PiggiestRequestDatabaseID,
PiggiestRequest.DatabaseName AS PiggiestRequestDatabaseName,
PiggiestRequest.BatchText AS PiggiestRequestBatchText,
PiggiestRequest.BatchTextLength AS BatchTextLength,
PiggiestRequest.StatementStartPos AS StatementStartPos,
PiggiestRequest.StatementEndPos AS StatementEndPos,
PiggiestRequest.StatementTextLength AS StatementTextLength,
PiggiestRequest.StatementText AS PiggiestRequestStatementText,
PiggiestRequest.QueryPlan AS PiggiestRequestQueryPlanXML
FROM
(
SELECT
SUM(ConnectionCount) AS ConnectionCount,
SUM(CONVERT(BIGINT, ISNULL(dm_tran_session_transactions.TransactionCount,0))) AS OpenTranCount,
SUM(CONVERT(BIGINT, ISNULL(dm_exec_cursors.OpenCursorCount,0))) AS OpenCursorCount,
SUM(CONVERT(BIGINT, ISNULL(dm_exec_cursors.ClosedCursorCount,0))) AS ClosedCursorCount,
ISNULL(SUM(dm_exec_blockrequests.BlockingRequestCount),0) AS BlockingRequestCount,
SUM(dm_exec_requests.ActiveReqCount) AS ActiveReqCount,
SUM(dm_exec_requests.open_resultset_count) AS OpenResultSetCount,
SUM(dm_exec_requests.open_transaction_count) AS ActiveReqOpenTranCount,
SUM(dm_exec_requests.BlockedReqCount) AS BlockedReqCount,
SUM(dm_exec_requests.wait_time) AS WaitTime,
SUM(dm_exec_requests.cpu_time) AS CPUTime,
SUM(dm_exec_requests.total_elapsed_time) AS ElapsedTime,
SUM(dm_exec_requests.reads) AS Reads,
SUM(dm_exec_requests.writes) AS Writes,
SUM(dm_exec_requests.logical_reads) AS LogicalReads,
SUM(dm_exec_requests.PendingIOCount) AS PendingIOCount,
SUM(dm_exec_requests.row_count) AS [RowCount],
SUM(dm_exec_requests.granted_query_memory) AS GrantedQueryMemoryKB
FROM sys.dm_exec_sessions
LEFT OUTER JOIN
(
SELECT
session_id,
COUNT(*) AS ConnectionCount
FROM sys.dm_exec_connections
GROUP BY session_id
) AS dm_exec_connections
ON sys.dm_exec_sessions.session_id = dm_exec_connections.session_id
LEFT OUTER JOIN
(
SELECT
session_id,
COUNT(*) AS TransactionCount
FROM sys.dm_tran_session_transactions
GROUP BY session_id
) AS dm_tran_session_transactions
ON sys.dm_exec_sessions.session_id = dm_tran_session_transactions.session_id
LEFT OUTER JOIN
(
SELECT
blocking_session_id,
COUNT(*) AS BlockingRequestCount
FROM sys.dm_exec_requests
GROUP BY blocking_session_id
) AS dm_exec_blockrequests
ON sys.dm_exec_sessions.session_id = dm_exec_blockrequests.blocking_session_id
LEFT OUTER JOIN
(
SELECT
session_id,
SUM(CASE WHEN is_open=1 THEN 1 ELSE 0 END) AS OpenCursorCount,
SUM(CASE WHEN is_open=0 THEN 1 ELSE 0 END) AS ClosedCursorCount
FROM sys.dm_exec_cursors (0)
GROUP BY session_id
) AS dm_exec_cursors
ON sys.dm_exec_sessions.session_id = dm_exec_cursors.session_id
LEFT OUTER JOIN
(
SELECT
dm_exec_requests.session_id AS Session_ID,
SUM(CONVERT(bigint, dm_exec_requests.open_transaction_count)) AS open_transaction_count,
SUM(CONVERT(bigint, dm_exec_requests.open_resultset_count)) AS open_resultset_count,
SUM(CASE WHEN dm_exec_requests.total_elapsed_time IS NULL THEN 0 ELSE 1 END) AS ActiveReqCount,
SUM(CASE WHEN dm_exec_requests.blocking_session_id <> 0 THEN 1 ELSE 0 END) AS BlockedReqCount,
SUM(CONVERT(bigint, dm_exec_requests.wait_time)) AS wait_time,
SUM(CONVERT(bigint, dm_exec_requests.cpu_time)) AS cpu_time,
SUM(CONVERT(bigint, dm_exec_requests.total_elapsed_time)) AS total_elapsed_time,
SUM(CONVERT(bigint, dm_exec_requests.reads)) AS Reads,
SUM(CONVERT(bigint, dm_exec_requests.writes)) AS Writes,
SUM(CONVERT(bigint, dm_exec_requests.logical_reads)) AS logical_reads,
SUM(CONVERT(bigint, dm_os_tasks.PendingIOCount)) AS PendingIOCount,
SUM(CONVERT(bigint, dm_exec_requests.row_count)) AS row_count,
SUM(CONVERT(bigint, dm_exec_requests.granted_query_memory*8)) AS granted_query_memory
FROM sys.dm_exec_requests
LEFT OUTER JOIN
(
SELECT
request_id,
session_id,
SUM(pending_io_count) AS PendingIOCount
FROM sys.dm_os_tasks WITH (NOLOCK)
GROUP BY
request_id,
session_id
) AS dm_os_tasks
ON dm_exec_requests.request_id = dm_os_tasks.request_id
AND dm_exec_requests.session_id = dm_os_tasks.session_id
GROUP BY dm_exec_requests.session_id
) AS dm_exec_requests
ON sys.dm_exec_sessions.session_id = dm_exec_requests.session_id
WHERE sys.dm_exec_sessions.is_user_process = 1
) AS Sessions
LEFT OUTER JOIN
(
SELECT
Requests.login_name AS Login_Name,
Requests.HOST_NAME AS HOST_NAME,
Requests.program_name AS program_name,
Requests.session_id AS session_id,
Requests.database_id AS DatabaseID,
databases.name AS DatabaseName,
Statements.TEXT AS BatchText,
LEN(Statements.TEXT) AS BatchTextLength,
Requests.statement_start_offset/2 AS StatementStartPos,
CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END/2 AS StatementEndPos,
(CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END - Requests.statement_start_offset)/2 AS StatementTextLength,
CASE
WHEN Requests.sql_handle IS NULL THEN ' '
ELSE
SUBSTRING(
Statements.TEXT,
(Requests.statement_start_offset+2)/2,
(CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END - Requests.statement_start_offset)/2
)
END AS StatementText,
QueryPlans.query_plan AS QueryPlan
FROM
(
SELECT
Sessions.login_name,
Sessions.HOST_NAME,
Sessions.program_name,
Requests.session_id,
Requests.database_id,
CONVERT(BigInt, (Requests.cpu_time+1))*CONVERT(BigInt, (Requests.reads*10+Requests.writes*10+Requests.logical_reads+1)) AS score,
Requests.sql_handle, Requests.plan_handle, Requests.statement_start_offset, Requests.statement_end_offset,
ROW_NUMBER() OVER (
ORDER BY CONVERT(BigInt, (Requests.cpu_time+1))*CONVERT(BigInt, (Requests.reads*10+Requests.writes*10+Requests.logical_reads+1)) DESC
) AS RowNumber
FROM
sys.dm_exec_sessions AS Sessions
JOIN sys.dm_exec_requests AS Requests ON Sessions.session_id=Requests.session_id
) AS Requests
LEFT OUTER JOIN sys.databases ON requests.database_id=databases.database_id
OUTER APPLY sys.dm_exec_sql_text(sql_handle) AS Statements
OUTER APPLY sys.dm_exec_query_plan(plan_handle) AS QueryPlans
WHERE RowNumber=1
) AS PiggiestRequest ON 1=1
--*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
--Connections by LoginName, Hostname, and ProgramName
SELECT
Sessions.login_name, Sessions.HOST_NAME, Sessions.program_name,
ConnectionCount, OpenTranCount, OpenCursorCount, ClosedCursorCount, BlockingRequestCount,
ActiveReqCount, OpenResultSetCount, ActiveReqOpenTranCount, BlockedReqCount,
WaitTime, CPUTime, ElapsedTime, Reads, Writes, LogicalReads, PendingIOCount, [RowCount], GrantedQueryMemoryKB,
PiggiestRequest.session_id AS PiggiestRequestSessionID,
PiggiestRequest.DatabaseID AS PiggiestRequestDatabaseID,
PiggiestRequest.DatabaseName AS PiggiestRequestDatabaseName,
PiggiestRequest.BatchText AS PiggiestRequestBatchText,
PiggiestRequest.BatchTextLength, PiggiestRequest.StatementStartPos,
PiggiestRequest.StatementEndPos, PiggiestRequest.StatementTextLength,
PiggiestRequest.StatementText AS PiggiestRequestStatementText,
PiggiestRequest.QueryPlan AS PiggiestRequestQueryPlanXML
FROM
(
SELECT
sys.dm_exec_sessions.login_name, sys.dm_exec_sessions.HOST_NAME, sys.dm_exec_sessions.program_name,
SUM(ConnectionCount) AS ConnectionCount,
SUM(CONVERT(bigint, ISNULL(dm_tran_session_transactions.TransactionCount,0))) AS OpenTranCount,
SUM(CONVERT(bigint, ISNULL(dm_exec_cursors.OpenCursorCount,0))) AS OpenCursorCount,
SUM(CONVERT(bigint, ISNULL(dm_exec_cursors.ClosedCursorCount,0))) AS ClosedCursorCount,
ISNULL(SUM(dm_exec_blockrequests.BlockingRequestCount),0) AS BlockingRequestCount,
SUM(dm_exec_requests.ActiveReqCount) AS ActiveReqCount,
SUM(dm_exec_requests.open_resultset_count) AS OpenResultSetCount,
SUM(dm_exec_requests.open_transaction_count) AS ActiveReqOpenTranCount,
SUM(dm_exec_requests.BlockedReqCount) AS BlockedReqCount,
SUM(dm_exec_requests.wait_time) AS WaitTime,
SUM(dm_exec_requests.cpu_time) AS CPUTime,
SUM(dm_exec_requests.total_elapsed_time) AS ElapsedTime,
SUM(dm_exec_requests.reads) AS Reads,
SUM(dm_exec_requests.writes) AS Writes,
SUM(dm_exec_requests.logical_reads) AS LogicalReads,
SUM(dm_exec_requests.PendingIOCount) AS PendingIOCount,
SUM(dm_exec_requests.row_count) AS [RowCount],
SUM(dm_exec_requests.granted_query_memory) AS GrantedQueryMemoryKB
FROM
sys.dm_exec_sessions
LEFT OUTER JOIN (
SELECT session_id, COUNT(*) AS ConnectionCount FROM sys.dm_exec_connections GROUP BY session_id
) AS dm_exec_connections ON sys.dm_exec_sessions.session_id=dm_exec_connections.session_id
LEFT OUTER JOIN (
SELECT session_id, COUNT(*) AS TransactionCount FROM sys.dm_tran_session_transactions GROUP BY session_id
) AS dm_tran_session_transactions ON sys.dm_exec_sessions.session_id=dm_tran_session_transactions.session_id
LEFT OUTER JOIN (
SELECT blocking_session_id, COUNT(*) AS BlockingRequestCount FROM sys.dm_exec_requests GROUP BY blocking_session_id
) AS dm_exec_blockrequests ON sys.dm_exec_sessions.session_id=dm_exec_blockrequests.blocking_session_id
LEFT OUTER JOIN (
SELECT session_id, SUM(CASE WHEN is_open=1 THEN 1 ELSE 0 END) AS OpenCursorCount, SUM(CASE WHEN is_open=0 THEN 1 ELSE 0 END) AS ClosedCursorCount
FROM sys.dm_exec_cursors (0)
GROUP BY session_id
) AS dm_exec_cursors ON sys.dm_exec_sessions.session_id=dm_exec_cursors.session_id
LEFT OUTER JOIN (
SELECT
dm_exec_requests.session_id,
SUM(CONVERT(bigint, dm_exec_requests.open_transaction_count)) AS open_transaction_count,
SUM(CONVERT(bigint, dm_exec_requests.open_resultset_count)) AS open_resultset_count,
SUM(CASE WHEN dm_exec_requests.total_elapsed_time IS NULL THEN 0 ELSE 1 END) AS ActiveReqCount,
SUM(CASE WHEN dm_exec_requests.blocking_session_id <> 0 THEN 1 ELSE 0 END) AS BlockedReqCount,
SUM(CONVERT(bigint, dm_exec_requests.wait_time)) AS wait_time,
SUM(CONVERT(bigint, dm_exec_requests.cpu_time)) AS cpu_time,
SUM(CONVERT(bigint, dm_exec_requests.total_elapsed_time)) AS total_elapsed_time,
SUM(CONVERT(bigint, dm_exec_requests.reads)) AS Reads,
SUM(CONVERT(bigint, dm_exec_requests.writes)) AS Writes,
SUM(CONVERT(bigint, dm_exec_requests.logical_reads)) AS logical_reads,
SUM(CONVERT(bigint, dm_os_tasks.PendingIOCount)) AS PendingIOCount,
SUM(CONVERT(bigint, dm_exec_requests.row_count)) AS row_count,
SUM(CONVERT(bigint, dm_exec_requests.granted_query_memory*8)) AS granted_query_memory
FROM
sys.dm_exec_requests
LEFT OUTER JOIN (
SELECT request_id, session_id, SUM(pending_io_count) AS PendingIOCount
FROM sys.dm_os_tasks WITH (NOLOCK)
GROUP BY request_id, session_id
) AS dm_os_tasks ON
dm_exec_requests.request_id=dm_os_tasks.request_id
AND dm_exec_requests.session_id=dm_os_tasks.session_id
GROUP BY dm_exec_requests.session_id
) AS dm_exec_requests ON sys.dm_exec_sessions.session_id=dm_exec_requests.session_id
WHERE sys.dm_exec_sessions.is_user_process=1
GROUP BY sys.dm_exec_sessions.login_name, sys.dm_exec_sessions.HOST_NAME, sys.dm_exec_sessions.program_name
) AS Sessions
LEFT OUTER JOIN (
SELECT
Requests.login_name, Requests.HOST_NAME, Requests.program_name, Requests.session_id,
Requests.database_id AS DatabaseID, databases.name AS DatabaseName,
Statements.TEXT AS BatchText,
LEN(Statements.TEXT) AS BatchTextLength,
Requests.statement_start_offset/2 AS StatementStartPos,
CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END/2 AS StatementEndPos,
(CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END - Requests.statement_start_offset)/2 AS StatementTextLength,
CASE
WHEN Requests.sql_handle IS NULL THEN ' '
ELSE
SUBSTRING(
Statements.TEXT,
(Requests.statement_start_offset+2)/2,
(CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END - Requests.statement_start_offset)/2
)
END AS StatementText,
QueryPlans.query_plan AS QueryPlan
FROM
(
SELECT
Sessions.login_name, Sessions.HOST_NAME, Sessions.program_name, Requests.session_id,
Requests.database_id,
CONVERT(BigInt, (Requests.cpu_time+1))*CONVERT(BigInt, (Requests.reads*10+Requests.writes*10+Requests.logical_reads+1)) AS score,
Requests.sql_handle, Requests.plan_handle, Requests.statement_start_offset, Requests.statement_end_offset,
ROW_NUMBER() OVER (
PARTITION BY Sessions.login_name, Sessions.HOST_NAME, Sessions.program_name
ORDER BY CONVERT(BigInt, (Requests.cpu_time+1))*CONVERT(BigInt, (Requests.reads*10+Requests.writes*10+Requests.logical_reads+1)) DESC
) AS RowNumber
FROM
sys.dm_exec_sessions AS Sessions
JOIN sys.dm_exec_requests AS Requests ON Sessions.session_id=Requests.session_id
) AS Requests
LEFT OUTER JOIN sys.databases ON requests.database_id=databases.database_id
OUTER APPLY sys.dm_exec_sql_text(sql_handle) AS Statements
OUTER APPLY sys.dm_exec_query_plan(plan_handle) AS QueryPlans
WHERE RowNumber=1
) AS PiggiestRequest ON
Sessions.login_name=PiggiestRequest.login_name
AND Sessions.HOST_NAME=PiggiestRequest.HOST_NAME
AND Sessions.program_name=PiggiestRequest.program_name
ORDER BY
Sessions.ActiveReqCount DESC, Sessions.OpenTranCount DESC,
Sessions.BlockingRequestCount DESC, Sessions.BlockedReqCount DESC, Sessions.ConnectionCount DESC,
Sessions.login_name, Sessions.HOST_NAME, Sessions.program_name
--*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
--Connections by session_id
SELECT
Sessions.session_id, Sessions.login_name, Sessions.HOST_NAME, Sessions.program_name,
Sessions.client_interface_name, Sessions.status,
ConnectionCount, OpenTranCount, OpenCursorCount, ClosedCursorCount, BlockingRequestCount,
ActiveReqCount, OpenResultSetCount, ActiveReqOpenTranCount, BlockedReqCount,
WaitTime, CPUTime, ElapsedTime, Reads, Writes, LogicalReads, PendingIOCount, [RowCount], GrantedQueryMemoryKB,
PiggiestRequest.DatabaseID AS PiggiestRequestDatabaseID,
PiggiestRequest.DatabaseName AS PiggiestRequestDatabaseName,
PiggiestRequest.BatchText AS PiggiestRequestBatchText,
PiggiestRequest.BatchTextLength, PiggiestRequest.StatementStartPos,
PiggiestRequest.StatementEndPos, PiggiestRequest.StatementTextLength,
PiggiestRequest.StatementText AS PiggiestRequestStatementText,
PiggiestRequest.QueryPlan AS PiggiestRequestQueryPlanXML
FROM
(
SELECT
sys.dm_exec_sessions.session_id,
MAX(sys.dm_exec_sessions.login_name) AS login_name, MAX(sys.dm_exec_sessions.HOST_NAME) AS HOST_NAME,
MAX(sys.dm_exec_sessions.program_name) AS program_name, MAX(sys.dm_exec_sessions.client_interface_name) AS client_interface_name,
MAX(sys.dm_exec_sessions.status) AS status,
SUM(ConnectionCount) AS ConnectionCount,
SUM(CONVERT(bigint, ISNULL(dm_tran_session_transactions.TransactionCount,0))) AS OpenTranCount,
SUM(CONVERT(bigint, ISNULL(dm_exec_cursors.OpenCursorCount,0))) AS OpenCursorCount,
SUM(CONVERT(bigint, ISNULL(dm_exec_cursors.ClosedCursorCount,0))) AS ClosedCursorCount,
ISNULL(SUM(dm_exec_blockrequests.BlockingRequestCount),0) AS BlockingRequestCount,
SUM(dm_exec_requests.ActiveReqCount) AS ActiveReqCount,
SUM(dm_exec_requests.open_resultset_count) AS OpenResultSetCount,
SUM(dm_exec_requests.open_transaction_count) AS ActiveReqOpenTranCount,
SUM(dm_exec_requests.BlockedReqCount) AS BlockedReqCount,
SUM(dm_exec_requests.wait_time) AS WaitTime,
SUM(dm_exec_requests.cpu_time) AS CPUTime,
SUM(dm_exec_requests.total_elapsed_time) AS ElapsedTime,
SUM(dm_exec_requests.reads) AS Reads,
SUM(dm_exec_requests.writes) AS Writes,
SUM(dm_exec_requests.logical_reads) AS LogicalReads,
SUM(dm_exec_requests.PendingIOCount) AS PendingIOCount,
SUM(dm_exec_requests.row_count) AS [RowCount],
SUM(dm_exec_requests.granted_query_memory) AS GrantedQueryMemoryKB
FROM
sys.dm_exec_sessions
LEFT OUTER JOIN (
SELECT session_id, COUNT(*) AS ConnectionCount FROM sys.dm_exec_connections GROUP BY session_id
) AS dm_exec_connections ON sys.dm_exec_sessions.session_id=dm_exec_connections.session_id
LEFT OUTER JOIN (
SELECT session_id, COUNT(*) AS TransactionCount FROM sys.dm_tran_session_transactions GROUP BY session_id
) AS dm_tran_session_transactions ON sys.dm_exec_sessions.session_id=dm_tran_session_transactions.session_id
LEFT OUTER JOIN (
SELECT blocking_session_id, COUNT(*) AS BlockingRequestCount FROM sys.dm_exec_requests GROUP BY blocking_session_id
) AS dm_exec_blockrequests ON sys.dm_exec_sessions.session_id=dm_exec_blockrequests.blocking_session_id
LEFT OUTER JOIN (
SELECT session_id, SUM(CASE WHEN is_open=1 THEN 1 ELSE 0 END) AS OpenCursorCount, SUM(CASE WHEN is_open=0 THEN 1 ELSE 0 END) AS ClosedCursorCount
FROM sys.dm_exec_cursors (0)
GROUP BY session_id
) AS dm_exec_cursors ON sys.dm_exec_sessions.session_id=dm_exec_cursors.session_id
LEFT OUTER JOIN (
SELECT
dm_exec_requests.session_id,
SUM(CONVERT(bigint, dm_exec_requests.open_transaction_count)) AS open_transaction_count,
SUM(CONVERT(bigint, dm_exec_requests.open_resultset_count)) AS open_resultset_count,
SUM(CASE WHEN dm_exec_requests.total_elapsed_time IS NULL THEN 0 ELSE 1 END) AS ActiveReqCount,
SUM(CASE WHEN dm_exec_requests.blocking_session_id <> 0 THEN 1 ELSE 0 END) AS BlockedReqCount,
SUM(CONVERT(bigint, dm_exec_requests.wait_time)) AS wait__time,
SUM(CONVERT(bigint, dm_exec_requests.cpu_time)) AS cpu_time,
SUM(CONVERT(bigint, dm_exec_requests.total_elapsed_time)) AS total_elapsed_time,
SUM(CONVERT(bigint, dm_exec_requests.reads)) AS Reads,
SUM(CONVERT(bigint, dm_exec_requests.writes)) AS Writes,
SUM(CONVERT(bigint, dm_exec_requests.logical_reads)) AS logical_reads,
SUM(CONVERT(bigint, dm_os_tasks.PendingIOCount)) AS PendingIOCount,
SUM(CONVERT(bigint, dm_exec_requests.row_count)) AS row_count,
SUM(CONVERT(bigint, dm_exec_requests.granted_query_memory*8)) AS granted_query_memory
FROM
sys.dm_exec_requests
LEFT OUTER JOIN (
SELECT request_id, session_id, SUM(pending_io_count) AS PendingIOCount
FROM sys.dm_os_tasks WITH (NOLOCK)
GROUP BY request_id, session_id
) AS dm_os_tasks ON
dm_exec_requests.request_id=dm_os_tasks.request_id
AND dm_exec_requests.session_id=dm_os_tasks.session_id
GROUP BY dm_exec_requests.session_id
) AS dm_exec_requests ON sys.dm_exec_sessions.session_id=dm_exec_requests.session_id
WHERE sys.dm_exec_sessions.is_user_process=1
GROUP BY sys.dm_exec_sessions.session_id
) AS Sessions
LEFT OUTER JOIN (
SELECT
Requests.session_id,
Requests.database_id AS DatabaseID, databases.name AS DatabaseName,
Statements.TEXT AS BatchText,
LEN(Statements.TEXT) AS BatchTextLength,
Requests.statement_start_offset/2 AS StatementStartPos,
CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END/2 AS StatementEndPos,
(CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END - Requests.statement_start_offset)/2 AS StatementTextLength,
CASE
WHEN Requests.sql_handle IS NULL THEN ' '
ELSE
SUBSTRING(
Statements.TEXT,
(Requests.statement_start_offset+2)/2,
(CASE
WHEN Requests.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX),Statements.TEXT))*2
ELSE Requests.statement_end_offset
END - Requests.statement_start_offset)/2
)
END AS StatementText,
QueryPlans.query_plan AS QueryPlan
FROM
(
SELECT
Requests.session_id,
Requests.database_id,
CONVERT(BigInt, (Requests.cpu_time+1))*CONVERT(BigInt, (Requests.reads*10+Requests.writes*10+Requests.logical_reads+1)) AS score,
Requests.sql_handle, Requests.plan_handle, Requests.statement_start_offset, Requests.statement_end_offset,
ROW_NUMBER() OVER (
PARTITION BY Requests.session_id
ORDER BY CONVERT(BigInt, (Requests.cpu_time+1))*CONVERT(BigInt, (Requests.reads*10+Requests.writes*10+Requests.logical_reads+1)) DESC
) AS RowNumber
FROM sys.dm_exec_requests AS Requests
) AS Requests
LEFT OUTER JOIN sys.databases ON requests.database_id=databases.database_id
OUTER APPLY sys.dm_exec_sql_text(sql_handle) AS Statements
OUTER APPLY sys.dm_exec_query_plan(plan_handle) AS QueryPlans
WHERE RowNumber=1
) AS PiggiestRequest ON Sessions.session_id=PiggiestRequest.session_id
ORDER BY
Sessions.ActiveReqCount DESC, Sessions.OpenTranCount DESC,
Sessions.BlockingRequestCount DESC, Sessions.BlockedReqCount DESC, Sessions.ConnectionCount DESC,
Sessions.login_name, Sessions.HOST_NAME, Sessions.program_name, Sessions.session_id
GO
|
 Updating... Andy Hughes, Aug 2, 2012, 7:06 AM
|
