Raja,
16k of this difference might be with respect to the log buffer size (most
probably) and this is due to the presence of 2 guard pages for the log buffer on some
Operating systems, and as for the remaining space--I am not too sure.
Girijan
---------------------------------------- Message History
----------------------------------------
Please respond to [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
cc:
Hello,
I am running oracle 8.1.5.0.0 on hp11.
If I select from V$sga I get at least 18104 more than what I see in v$sgastat.
Therefore I wanted to know why the figures are different and what statistic in
v$sgastat is not counted, and therefore the figure in v$sgastat is low??
I am getting some thing like this:-
select sum(value) from v$sga;
35059816
select sum(bytes) from v$sgastat;
35041712
Please comment if you can, thanks in advance.
rgds,
raja
--
On Thu, 09 Aug 2001 10:25:21
Seema Singh wrote:
>Hermanto
>which version of oracle u r running?Just see following output
>SVRMGR> connect internal;
>Connected.
>SVRMGR> select sum(value) from v$sga;
>SUM(VALUE)
>----------
>1033101472
>1 row selected.
>SVRMGR> select sum(bytes) from v$sgastat;
>SUM(BYTES)
>----------
>1033044248
>1 row selected.
>SVRMGR> show sga
>Total System Global Area 1033101472 bytes
>Fixed Size 73888 bytes
>Variable Size 537395200 bytes
>Database Buffers 491520000 bytes
>Redo Buffers 4112384 bytes
>If u see all three output you can see the diffrence.The correct view to
>check size of sga is v$sga.
>Hope this will help u.
>Thanks
>-Seema
>
>
>
>>From: Hermanto P <[EMAIL PROTECTED]>
>>Reply-To: [EMAIL PROTECTED]
>>To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
>>Subject: RE: SGA info.
>>Date: Wed, 08 Aug 2001 20:51:10 -0800
>>
>>Raja,
>>if i do what you do..the value is same.
>>i am not sure if you said the value between v$sgastat and v$sga is
>>different.
>>
>>SVRMGR> select sum(value) from v$sga;
>>SUM(VALUE)
>>----------
>> 64046072
>>1 row selected.
>>SVRMGR> select sum(bytes) from v$sgastat;
>>SUM(BYTES)
>>----------
>> 64046072
>>1 row selected.
>>SVRMGR>
>>
>>Warm Regards,
>>
>>Hermanto P
>>Application Engineer
>>PT Riau Andalan Pulp And Paper - IT/IS Dept.
>>Phone : (0761) - 491147 / 491354
>>HP : 0812-752-3092
>>"Dream as if you'll live forever, live as if you'll die today"
>>
>>
>>
>>
>>-----Original Message-----
>>Sent: Thursday, August 09, 2001 11:30 AM
>>To: Multiple recipients of list ORACLE-L
>>
>>
>>Hello gurus,
>>
>>I am not able to understand 1 thing:-
>>
>>1. If I do :-
>>
>>select sum(bytes) from v$sgastat;
>>it gives me the SGA as :- 35041712
>>
>>2. But if I do :-
>>
>>select sum(value) from v$sga I get:- 35059816
>>
>>There is a difference of 18104 between 2 figures.
>>
>>Which 1 should I trust? which gives me the correct value of SGA?
>>
>>thanks
>>
>>rdgs,
>>
>>raja
>>
>>
>>Get 250 color business cards for FREE!
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>>
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>
>
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