Subject | Re: [firebird-support] Performance stats |
---|---|
Author | Helen Borrie |
Post date | 2004-09-10T13:47:54Z |
At 12:59 PM 10/09/2004 +0000, you wrote:
If it's a support question, I'll try to help:
blob data are all stored on pages. Recently-used pages are in the page cache.
You can examine the fill distribution of pages using gstat.
statement back to the client via the XSQLDA structure.
once. You can use the context variables CURRENT_CONNECTION and
CURRENT_TRANSACTION for the client to discover those IDs respectively.
Gstat will give you the ID of the Next Transaction.
in the lock tables that (theoretically) could be transmogrified into
interesting peformance statistics.
./heLen
>Does there exist, or are there any plans to implement, a means ofIf this is a "wish list" it doesn't belong here.
>accumulating performance related stats for a Firebird database.
>Useful items would include, but not necessarily be limited to:
If it's a support question, I'll try to help:
>1) Active connections and what IP address they originate from.No, but network tools can collect this information.
>2) Current or last active SQL command for each connection.No. Clients can do this, of course, via SQL monitoring and profiling.
>3) Execution time of above command.same as above
>4) # of IOs done by last command.Mere "I/O" counts wouldn't be meaningful, since row data, index data and
blob data are all stored on pages. Recently-used pages are in the page cache.
You can examine the fill distribution of pages using gstat.
>5) Total execution time for connection.Don't understand what you want here.
>6) Total IOs done by connection.Irrelevant, as above. You can get a count of rows affected by an I/U/D
statement back to the client via the XSQLDA structure.
>7) Total length of time connection active.Network tools can log this.
>8) Current transaction #.Not meaningful. There are typically many transactions "current" at
once. You can use the context variables CURRENT_CONNECTION and
CURRENT_TRANSACTION for the client to discover those IDs respectively.
Gstat will give you the ID of the Next Transaction.
>9) Length of time current transaction active.Client only.
>This would be a big help while trying to find the cause of FirebirdIf you want to pursue the idea, post to firebird-Architect. There is stuff
>related performance problems.
in the lock tables that (theoretically) could be transmogrified into
interesting peformance statistics.
./heLen