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Scripts de senha e info de queries e requisicoes
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‎Instance/CollectWaitSession.sql‎

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/*#info
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# Autor
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Rodrigo Ribeiro Gomes
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# Descricao
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Faz várias coletas das sessoes em wait.
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Util para analisar o progressos dos waits que uma sessão tinha...
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Isso foi antes de surgir a DMV sys.dm_exec_sessions_Wait_Stats, que traz isso melhor;
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*/
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declare
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@session bigint
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,@MaxCollects int = 100
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if object_id('tempdb..#waitinfo') is not null drop table #waitinfo;
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select
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convert(datetime,null) as start_time
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,session_id
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,wait_type
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,wait_duration_ms
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,W.wait_started_ms_ticks
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,W.wait_resumed_ms_ticks
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,CONVERT(bigint,NULL) as RunnableTime
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into
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#waitinfo
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from
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sys.dm_os_waiting_tasks WT
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JOIN
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sys.dm_os_workers W
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ON W.task_address = WT.waiting_task_address
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where 1 = 2
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declare @i int
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while @i <= @MaxCollects
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begin
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set @i += 1;
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insert into
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#waitinfo
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select
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R.start_time
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,R.session_id
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,ISNULL(wt.wait_type,R.wait_type)
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,ISNULL(wt.wait_duration_ms,R.wait_time)
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,W.wait_started_ms_ticks
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,W.wait_resumed_ms_ticks
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,CASE
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WHEN W.state = 'RUNNABLE' THEN SI.ms_ticks-W.wait_resumed_ms_ticks
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ELSE 0
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END as RunnableTime
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from
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sys.dm_exec_requests R
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JOIN
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sys.dm_os_workers W
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ON W.task_address = R.task_address
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CROSS JOIN
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sys.dm_os_sys_info SI
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LEFT JOIN
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sys.dm_os_waiting_tasks wt
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on wt.waiting_task_address = R.task_Address
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where
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R.session_id > 50
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and
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R.session_id != @@spid
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and
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(R.wait_type IS NOT NULL OR W.state = 'RUNNABLE')
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and
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(
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R.session_id = @session
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OR
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@session is null
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)
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end
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SELECT
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start_time
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,session_id
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,wait_type
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,SUM(wait_duration_ms) as Total
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,MIN(wait_duration_ms) as Minimum
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,MAX(wait_duration_ms) as Maximum
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,SUM(RunnableTime) AS RunnableTime
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,COUNT(*) as Qty
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FROM
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(
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select
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*
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,ROW_NUMBER() OVER(PARTITION BY wait_started_ms_ticks ORDER BY wait_duration_ms DESC) as Seq
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from
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#waitinfo
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) WI
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WHERE
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WI.Seq = 1
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GROUP BY
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start_time
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,session_id
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,wait_type
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‎Instance/FileStats.sql‎

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/*#info
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# Autor
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Rodrigo Ribeiro Gomes
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# Descricao
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Info rápida sobre o IO dos arquivos.
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Como é um valor acumulado, pode não refletir a realidade, mas é um ponto de partida pra identificar algo fora de um padrão.
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*/
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SELECT
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DB_NAME(vf.database_id)
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,MF.physical_name
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,vf.num_of_reads
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,vf.num_of_bytes_read
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,vf.io_stall_read_ms
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,vf.sample_ms
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,vf.num_of_reads/(vf.io_stall_read_ms/1000.00) AvgReadsPerSec
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,vf.num_of_bytes_read/(vf.io_stall_read_ms/1000.00) AvgReadsBytesPerSec
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,(vf.io_stall_read_ms/1000.00)/vf.num_of_reads SecsPerRead
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FROM
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sys.dm_io_virtual_file_stats(null,null) vf
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LEFT JOIN
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sys.master_files MF
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on MF.database_id = VF.database_id
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and MF.file_id = VF.file_id
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ORDER BY
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SecsPerRead DESC

‎Instance/GetResponseStats_Adhoc.sql‎

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/*#info
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# Autor
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Rodrigo Ribeiro Gomes
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# Descricao
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Esta query foi uma tentativa rápida de ter algo que me desse informações sobre o que está executando na instância.
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Eu queria que, com 1 simples query, tivesse uma noção do qual rápido ou lento uma instância poderia estar.
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Este script foi uma das primeiras tentativas disso, e, de fato, me ajudou:
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- Consigo saber quantas requisições estão rodando
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- Há quanto tempo a mais antiga está rodando
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- Quantoas estão em Wait e quantas runnable (gargalo de cpu)
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- Quantas em paralelo, e quantos estão rodando acima de um threhsold (highrun)
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- Quanto de cpu as queries estão usando (colunas com cpufactor no nome, que mede o total de cpu cosideranod a vida itneira da req)
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- Qtd de queries que rodou no ultimo segundo e a média de tempo
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- Com estão as requisicoes de dico, quanto pending e quanto tempo em média
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*/
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DECLARE
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@LastQueryTime int
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,@highRunMS int
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,@highDisk int
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,@highNet int
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SELECT @LastQueryTime = 1
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,@highRunMS = 1000
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,@highDisk = 5
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,@highNet = 5
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SELECT
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*
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,PorcEspera = Waiting*100/NULLIF(RequestCount,0)
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,PorcHighs = HighRun*100/NULLIF(RequestCount,0)
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,PorcUsedWorkers = WS.BusyWorkers*100/SI.MaxWorkersCount
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FROM
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(
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SELECT
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AllRequests = COUNT(*)
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,RequestCount = COUNT(CASE WHEN RS.IsNormal = 1 THEN RS.session_id END)
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,OldestRequest = MIN(CASE WHEN RS.IsNormal = 1 THEN RS.start_time END)
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,OldestTime = DATEDIFF(SS,MIN(CASE WHEN RS.IsNormal = 1 THEN RS.start_time END),CURRENT_TIMESTAMP)
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,Running = COUNT(CASE WHEN RS.status = 'running' AND RS.IsNormal = 1 THEN RS.session_id END)
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,Runnables = COUNT(CASE WHEN RS.status = 'runnable' AND RS.IsNormal = 1 THEN RS.session_id END)
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,Waiting = COUNT(CASE WHEN RS.status = 'suspended' AND RS.IsNormal = 1 AND RS.RealWaitsCount > 0 THEN RS.session_id END)
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,InParalell = COUNT(CASE WHEN RS.IsNormal = 1 AND RS.WorkerCount > 1 THEN RS.session_id END)
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,HighRun = COUNT(CASE WHEN RS.HighRun = 1 AND RS.IsNormal = 1 THEN RS.session_id END)
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,AvgCPUFactor = AVG(CASE WHEN RS.IsNormal = 1 THEN RS.CPUFactor END)
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,MaxCPUFactor = MAX(CASE WHEN RS.IsNormal = 1 THEN RS.CPUFactor END)
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,AvgReads = AVG(CASE WHEN RS.IsNormal = 1 THEN CONVERT(bigint,RS.reads) END)
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,AvgWrites = AVG(CASE WHEN RS.IsNormal = 1 THEN CONVERT(bigint,RS.writes) END)
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,AvgWaiting = AVG(CASE WHEN RS.IsNormal = 1 THEN CONVERT(bigint,RS.wait_time) END)
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--,AvgElapsed = AVG(CASE WHEN RS.IsNormal = 1 THEN RS.total_elapsed_time END)
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,AvgWorkers = AVG(CASE WHEN RS.IsNormal = 1 THEN RS.WorkerCount END)
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,MaxWorkers = MAX(CASE WHEN RS.IsNormal = 1 THEN RS.WorkerCount END)
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FROM
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(
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SELECT
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*
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,CASE WHEN isAdmin = 0 AND isForcedWait = 0 THEN 1 ELSE 0 END IsNormal
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,CASE
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DATEDIFF(SS,RS.start_time,CURRENT_TIMESTAMP) WHEN 0 THEN 0
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ELSE RS.cpu_time*100.00/DATEDIFF(SS,RS.start_time,CURRENT_TIMESTAMP)
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END as CPUFactor
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,CASE
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WHEN RS.total_elapsed_time > @highRunMS THEN 1
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ELSE 0
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END as HighRun
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,CASE
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WHEN W.WorkerCount > 1 THEN 1
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ELSE 0
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END IsParalell
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FROM
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(
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SELECT
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*
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,CASE
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WHEN R.command IN ('DBCC','DbccFilesCompact') THEN 1
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WHEN R.command LIKE '%BACKUP%' THEN 1
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ELSE 0
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END isAdmin
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,CASE
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WHEN R.command IN ('WAITFOR','BROKER_RECEIVE_WAITFOR') THEN 1
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WHEN R.command LIKE '%BACKUP%' THEN 1
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ELSE 0
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END isForcedWait
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FROM
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sys.dm_exec_requests R
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OUTER APPLY (
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SELECT
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COUNT(*) AS RealWaitsCount
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FROM
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sys.dm_os_waiting_tasks OT
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WHERE
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OT.session_id = R.session_id
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AND
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OT.wait_type NOT IN ('CXPACKET')
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) STA
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WHERE
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R.session_id > 50
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AND
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R.session_id != @@SPID
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) RS
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OUTER APPLY
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(
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SELECT
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COUNT(W.worker_address) as WorkerCount
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FROM
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sys.dm_os_tasks T WITH(nolock)
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INNER JOIN
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sys.dm_os_workers W WITH(nolock)
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ON W.worker_address = T.worker_address
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WHERE
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T.session_id = RS.session_id
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AND
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T.request_id = RS.request_id
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) W
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) RS
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) R
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CROSS JOIN
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(
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SELECT
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S_MediaCPU = AVG(last_worker_time/1000.00)
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,S_MediaTempo = AVG(last_elapsed_time/1000.00)
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,S_LastExecuted = MAX(last_execution_time)
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,S_QtdQueries = COUNT(*)
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FROM
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sys.dm_exec_query_Stats
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WHERE
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last_execution_time > DATEADD(SS,-ISNULL(@LastQueryTime,1),CURRENT_TIMESTAMP)
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) QS
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CROSS JOIN
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(
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SELECT
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IODisk_Pending = COUNT(CASE WHEN IOR.TYPE = 'disk' THEN IOR.IOID END)
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,IODisk_AvgPending = AVG(CASE WHEN IOR.TYPE = 'disk' THEN IOR.WAIT END)
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,IODisk_Oldest = MAX(CASE WHEN IOR.TYPE = 'disk' THEN IOR.WAIT END)
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,IODisk_Highs = COUNT(CASE WHEN IOR.TYPE = 'disk' AND IOR.IsHigh = 1 THEN IOR.IOID END)
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,IONet_Pending = COUNT(CASE WHEN IOR.TYPE = 'network' THEN IOR.IOID END)
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,IONet_Oldest = MAX(CASE WHEN IOR.TYPE = 'network' THEN IOR.WAIT END)
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,IONet_AvgPending = AVG(CASE WHEN IOR.TYPE = 'network' THEN IOR.WAIT END)
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,IONet_Highs = COUNT(CASE WHEN IOR.TYPE = 'network' AND IOR.IsHigh = 1 THEN IOR.IOID END)
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FROM
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(
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SELECT
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IOR.*
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,IOR.io_completion_request_address as IOID
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,IOR.io_pending_ms_ticks as WAIT
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,IOR.io_type as TYPE
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,CASE
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WHEN IOR.io_pending_ms_ticks > @highDisk THEN 1
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WHEN IOR.io_pending_ms_ticks > @highNet THEN 1
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ELSE 0
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END IsHigh
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FROM
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sys.dm_io_pending_io_requests IOR
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) IOR
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) IOS
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CROSS JOIN
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(
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SELECT
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SUM(work_queue_count) as PendingTasks
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,SUM(runnable_tasks_count) as RunnableTasks
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FROM
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sys.dm_os_schedulers S
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WHERE
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S.status = 'VISIBLE ONLINE'
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) SDLS
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CROSS JOIN
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(
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SELECT
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COUNT(CASE WHEN W.task_address IS NOT NULL THEN W.worker_address END) as BusyWorkers
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FROM
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sys.dm_os_workers W
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) WS
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CROSS JOIN
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(
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SELECT
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SI.max_workers_count as MaxWorkersCount
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FROM
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sys.dm_os_sys_info SI
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) SI
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OPTION(RECOMPILE) --> Avoids caching of this query

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