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erikdarlingdataerikdarlingdata
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Merge pull request #754 from erikdarlingdata/dev
Merge dev to main: sp_QuickieCache modes and filter fix
2 parents 1ab3c31 + 03a594d commit 110e587

1 file changed

Lines changed: 144 additions & 2 deletions

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‎sp_QuickieCache/sp_QuickieCache.sql‎

Lines changed: 144 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -62,6 +62,8 @@ ALTER PROCEDURE
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@minimum_execution_count bigint = 2, /*noise floor for single-exec queries*/
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@ignore_system_databases bit = 1, /*exclude master, model, msdb, tempdb*/
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@impact_threshold decimal(3, 2) = 0.50, /*minimum impact_score to surface (0.00-1.00)*/
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@find_single_use_plans bit = 0, /*show single-use plans consuming the most memory*/
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@find_duplicate_plans bit = 0, /*show query hashes with multiple cached plans*/
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@debug bit = 0, /*print diagnostics*/
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@help bit = 0, /*display parameter help*/
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@version varchar(30) = NULL OUTPUT, /*OUTPUT; for support*/
@@ -122,6 +124,10 @@ BEGIN
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THEN N'exclude system databases (master, model, msdb, tempdb)'
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WHEN N'@impact_threshold'
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THEN N'minimum impact_score to surface in results'
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WHEN N'@find_single_use_plans'
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THEN N'show single-use plans consuming the most memory'
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WHEN N'@find_duplicate_plans'
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THEN N'show query hashes with multiple cached plans'
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WHEN N'@debug'
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THEN N'print diagnostic information'
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WHEN N'@help'
@@ -150,6 +156,10 @@ BEGIN
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THEN N'0 or 1'
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WHEN N'@impact_threshold'
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THEN N'0.00 to 1.00'
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WHEN N'@find_single_use_plans'
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THEN N'0 or 1'
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WHEN N'@find_duplicate_plans'
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THEN N'0 or 1'
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WHEN N'@debug'
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THEN N'0 or 1'
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WHEN N'@help'
@@ -178,6 +188,10 @@ BEGIN
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THEN N'1'
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WHEN N'@impact_threshold'
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THEN N'0.50'
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WHEN N'@find_single_use_plans'
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THEN N'0'
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WHEN N'@find_duplicate_plans'
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THEN N'0'
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WHEN N'@debug'
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THEN N'0'
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WHEN N'@help'
@@ -326,6 +340,134 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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RETURN;
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END;
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/*
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╔══════════════════════════════════════════════════╗
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║ Single-use plans mode ║
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╚══════════════════════════════════════════════════╝
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Shows the largest single-use plans by cached size,
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sorted by memory consumption descending.
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*/
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IF @find_single_use_plans = 1
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BEGIN
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SELECT TOP (@top)
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database_name =
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DB_NAME(CONVERT(integer, pa.value)),
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cached_plan_size_kb =
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cp.size_in_bytes / 1024,
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query_text =
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st.text,
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query_plan =
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CASE
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WHEN TRY_CAST(qp.query_plan AS xml) IS NOT NULL
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THEN TRY_CAST(qp.query_plan AS xml)
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WHEN TRY_CAST(qp.query_plan AS xml) IS NULL
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THEN
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(
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SELECT
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[processing-instruction(query_plan)] =
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N'-- ' + NCHAR(13) + NCHAR(10) +
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N'-- This is a huge query plan.' + NCHAR(13) + NCHAR(10) +
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N'-- Remove the headers and footers, save it as a .sqlplan file, and re-open it.' + NCHAR(13) + NCHAR(10) +
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NCHAR(13) + NCHAR(10) +
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REPLACE(qp.query_plan, N'<RelOp', NCHAR(13) + NCHAR(10) + N'<RelOp') +
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NCHAR(13) + NCHAR(10) COLLATE Latin1_General_Bin2
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FOR
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XML
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PATH(N''),
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TYPE
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)
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END,
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qs.query_hash,
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qs.query_plan_hash,
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qs.creation_time,
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qs.last_execution_time,
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qs.sql_handle,
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qs.plan_handle
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FROM sys.dm_exec_query_stats AS qs
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JOIN sys.dm_exec_cached_plans AS cp
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ON cp.plan_handle = qs.plan_handle
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CROSS APPLY
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(
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SELECT TOP (1)
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value = pa.value
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FROM sys.dm_exec_plan_attributes(qs.plan_handle) AS pa
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WHERE pa.attribute = N'dbid'
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) AS pa
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
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OUTER APPLY sys.dm_exec_text_query_plan
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(
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qs.plan_handle,
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qs.statement_start_offset,
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qs.statement_end_offset
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) AS qp
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WHERE qs.execution_count = 1
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AND (@ignore_system_databases = 0 OR ISNULL(CONVERT(integer, pa.value), 0) NOT IN (1, 2, 3, 4))
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AND ISNULL(CONVERT(integer, pa.value), 0) < 32761
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AND (@database_id IS NULL OR CONVERT(integer, pa.value) = @database_id)
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ORDER BY
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cp.size_in_bytes DESC
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OPTION(RECOMPILE, MAXDOP 1);
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RETURN;
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END;
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/*
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╔══════════════════════════════════════════════════╗
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║ Duplicate plans mode ║
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╚══════════════════════════════════════════════════╝
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Shows query hashes that have been compiled into
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multiple cached plans, sorted by plan count descending.
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*/
423+
IF @find_duplicate_plans = 1
424+
BEGIN
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SELECT TOP (@top)
426+
database_name =
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DB_NAME(CONVERT(integer, MAX(pa.value))),
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qs.query_hash,
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plan_count =
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COUNT_BIG(DISTINCT qs.plan_handle),
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total_executions =
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SUM(qs.execution_count),
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total_cpu_ms =
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SUM(qs.total_worker_time) / 1000.0,
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total_logical_reads =
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SUM(qs.total_logical_reads),
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total_cached_size_kb =
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SUM(cp.size_in_bytes) / 1024,
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oldest_plan =
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MIN(qs.creation_time),
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newest_plan =
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MAX(qs.creation_time),
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sample_query_text =
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MAX(st.text)
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FROM sys.dm_exec_query_stats AS qs
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JOIN sys.dm_exec_cached_plans AS cp
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ON cp.plan_handle = qs.plan_handle
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CROSS APPLY
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(
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SELECT TOP (1)
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value = pa.value
452+
FROM sys.dm_exec_plan_attributes(qs.plan_handle) AS pa
453+
WHERE pa.attribute = N'dbid'
454+
) AS pa
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CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
456+
WHERE qs.query_hash <> 0x0000000000000000
457+
AND (@ignore_system_databases = 0 OR ISNULL(CONVERT(integer, pa.value), 0) NOT IN (1, 2, 3, 4))
458+
AND ISNULL(CONVERT(integer, pa.value), 0) < 32761
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AND (@database_id IS NULL OR CONVERT(integer, pa.value) = @database_id)
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GROUP BY
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qs.query_hash
462+
HAVING
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COUNT_BIG(DISTINCT qs.plan_handle) > 1
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ORDER BY
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COUNT_BIG(DISTINCT qs.plan_handle) DESC
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OPTION(RECOMPILE, MAXDOP 1);
467+
468+
RETURN;
469+
END;
470+
329471
/*
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╔══════════════════════════════════════════════════╗
331473
║ Plan cache health analysis ║
@@ -537,7 +679,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
537679
WHERE pa.attribute = N'dbid'
538680
) AS pa
539681
WHERE pa.value IS NOT NULL
540-
AND CONVERT(integer, pa.value) NOT IN (1, 2, 3, 4)
682+
AND (@ignore_system_databases = 0 OR CONVERT(integer, pa.value) NOT IN (1, 2, 3, 4))
541683
AND CONVERT(integer, pa.value) < 32761
542684
AND (@database_id IS NULL OR CONVERT(integer, pa.value) = @database_id)
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GROUP BY
@@ -646,7 +788,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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WHERE pa.attribute = N'dbid'
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) AS pa
648790
WHERE pa.value IS NOT NULL
649-
AND CONVERT(integer, pa.value) NOT IN (1, 2, 3, 4)
791+
AND (@ignore_system_databases = 0 OR CONVERT(integer, pa.value) NOT IN (1, 2, 3, 4))
650792
AND CONVERT(integer, pa.value) < 32761
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AND (@database_id IS NULL OR CONVERT(integer, pa.value) = @database_id)
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GROUP BY

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