DO SQL perf counters intepret sysperfinfo internally ?

When SQL Server counters are used within perfmon, do they read off of values
in sysperfinfo and if so, what populates sysperfinfo and when does it run ?
And if there is no connection at all, then what is the use of sysperfinfo
and when can one use it and what can i make of it ?Sysperfinfo gets its data from the SAME sources as perfmon... Sysperfinfo is
used as the source for SQL Agent Performance Alerts..YOu can also use it for
your purposes but the formatting etc is strange... If I am not mistaken
there may be a white paper ( search on MS web site ) which describes how to
use sysperfinfo stats.
--
Wayne Snyder, MCDBA, SQL Server MVP
Computer Education Services Corporation (CESC), Charlotte, NC
www.computeredservices.com
(Please respond only to the newsgroups.)
I support the Professional Association of SQL Server (PASS) and it's
community of SQL Server professionals.
www.sqlpass.org
"Hassan" <fatima_ja@.hotmail.com> wrote in message
news:ei0$fAuiDHA.1940@.TK2MSFTNGP09.phx.gbl...
> When SQL Server counters are used within perfmon, do they read off of
values
> in sysperfinfo and if so, what populates sysperfinfo and when does it run
?
> And if there is no connection at all, then what is the use of sysperfinfo
> and when can one use it and what can i make of it ?
>|||Are you saying that the SQL Agent perf alerts are based upon the values in
sysperfino ? If so , then the source to perfmon\SQL Agent Perf counters is
sysperfino ..right ?
And the source to sysperfinfo is a stored proc that runs every couple of
secs I beleive ..sp_sqlagent_get_perf_counters ...
"Wayne Snyder" <wsnyder@.computeredservices.com> wrote in message
news:OA1LvN0iDHA.888@.TK2MSFTNGP09.phx.gbl...
> Sysperfinfo gets its data from the SAME sources as perfmon... Sysperfinfo
is
> used as the source for SQL Agent Performance Alerts..YOu can also use it
for
> your purposes but the formatting etc is strange... If I am not mistaken
> there may be a white paper ( search on MS web site ) which describes how
to
> use sysperfinfo stats.
> --
> Wayne Snyder, MCDBA, SQL Server MVP
> Computer Education Services Corporation (CESC), Charlotte, NC
> www.computeredservices.com
> (Please respond only to the newsgroups.)
> I support the Professional Association of SQL Server (PASS) and it's
> community of SQL Server professionals.
> www.sqlpass.org
>
> "Hassan" <fatima_ja@.hotmail.com> wrote in message
> news:ei0$fAuiDHA.1940@.TK2MSFTNGP09.phx.gbl...
> > When SQL Server counters are used within perfmon, do they read off of
> values
> > in sysperfinfo and if so, what populates sysperfinfo and when does it
run
> ?
> > And if there is no connection at all, then what is the use of
sysperfinfo
> > and when can one use it and what can i make of it ?
> >
> >
>|||The source for the (virtual) table sysperfinfo is a piece of shared
memory that is maintained all over the place in the sqlserver code.
Querying sysperfinfo, perfmon/sysmon refreshes and other actions (like
agent alerts) use that piece of shared memory as their source of
information.
"sql" <sql@.hotmail.com> wrote in message news:<OoFt271iDHA.1688@.TK2MSFTNGP12.phx.gbl>...
> Are you saying that the SQL Agent perf alerts are based upon the values in
> sysperfino ? If so , then the source to perfmon\SQL Agent Perf counters is
> sysperfino ..right ?
> And the source to sysperfinfo is a stored proc that runs every couple of
> secs I beleive ..sp_sqlagent_get_perf_counters ...
>
> "Wayne Snyder" <wsnyder@.computeredservices.com> wrote in message
> news:OA1LvN0iDHA.888@.TK2MSFTNGP09.phx.gbl...
> > Sysperfinfo gets its data from the SAME sources as perfmon... Sysperfinfo
> is
> > used as the source for SQL Agent Performance Alerts..YOu can also use it
> for
> > your purposes but the formatting etc is strange... If I am not mistaken
> > there may be a white paper ( search on MS web site ) which describes how
> to
> > use sysperfinfo stats.
> >
> > --
> > Wayne Snyder, MCDBA, SQL Server MVP
> > Computer Education Services Corporation (CESC), Charlotte, NC
> > www.computeredservices.com
> > (Please respond only to the newsgroups.)
> >
> > I support the Professional Association of SQL Server (PASS) and it's
> > community of SQL Server professionals.
> > www.sqlpass.org
> >
> >
> > "Hassan" <fatima_ja@.hotmail.com> wrote in message
> > news:ei0$fAuiDHA.1940@.TK2MSFTNGP09.phx.gbl...
> > > When SQL Server counters are used within perfmon, do they read off of
> values
> > > in sysperfinfo and if so, what populates sysperfinfo and when does it
> run
> ?
> > > And if there is no connection at all, then what is the use of
> sysperfinfo
> > > and when can one use it and what can i make of it ?
> > >
> > >
> >
> >sql