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Posted by SQLJunkie on 01/03/07 14:41
Thanks for your quick response Erland. I ran the following script but I
don't think this is the correct value. But I cannot find anything
meaningful???
DECLARE
@CPUBusy1 bigint
, @CPUBusy2 bigint
, @TimeTicks1 bigint
, @TimeTicks2 bigint
SELECT
@CPUBusy1 = @@CPU_BUSY
, @TimeTicks1 = @@TIMETICKS
WAITFOR DELAY '0:00:01'
SELECT
@CPUBusy2 = @@CPU_BUSY
, @TimeTicks2 = @@TIMETICKS
SELECT
@CPUBusy1 AS CPUBusy1
, @CPUBusy2 AS CPUBusy2
, @CPUBusy2 - @CPUBusy1 AS CPUDiff
, @TimeTicks1 AS TimeTicks1
, @TimeTicks2 AS TimeTicks2
, @TimeTicks2 - @TimeTicks1 AS TimeTicksDiff
Thanks for your time and help!
Vishal
Erland Sommarskog wrote:
> SQLJunkie (vsinha73@gmail.com) writes:
> > I have spent a good amount of time scouring google groups but this is
> > all I have found:
> > SELECT
> > (CAST(@@CPU_BUSY AS float)
> > * @@TIMETICKS
> > / 10000.00
> > / CAST(DATEDIFF (s, SP2.Login_Time, GETDATE()) AS float)) AS
> > CPUBusyPct
> > FROM
> > master..SysProcesses AS SP2
> > WHERE
> > SP2.Cmd = 'LAZY WRITER'
> >
> > Problem is this gives me total amount of time CPU in %) has been busy
> > since the server last started. What I want is the % for the instant -
> > the same number we see in Task Manager and PerfMon.
>
> Performance counters are in sysperfinfo on SQL 2000 and
> sys.dm_os_performance_counters on SQL 2005, but I could find the item
> you are looking for in these views.
>
> But I saw in Books Online for SQL 2005 that these values are cumultative. To
> get the present value, sample with some interval. I guess you could to
> the same: query @@CPU_BUSY twice with a second or so in between.
>
>
>
> --
> Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se
>
> Books Online for SQL Server 2005 at
> http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
> Books Online for SQL Server 2000 at
> http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx
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