Shared pool & application

Question

Hi, I am using Oracle Applications 9 with DB 9ir2, and I like to know if exists any documentation that say the minimal MB that I must assign to the parameter SHARED_POOL_SIZE in my database. Actually I have 608 MB in the shared pool, but in the V$SHARED_POOL_ADVICE I view that I can reduce the size to 250 MB.
Someone know this?
How could I know looking in the Statspack report If the Shared Pool is right sized or If I need increase or decrease the size?
Please, I need help on this.
Thanks a lot!

Answer 1

Thanks for the answer. Look my shared pool statistics taken of the statspack report:
Shared Pool Statistics        Begin   End
             Memory Usage %:   85.53   86.25
    % SQL with executions>1:   29.59   25.75
  % Memory for SQL w/exec>1:   46.08   42.59I need to decrease or increase the Shared Pool? This is a database for an Application 9, exists some minimal value to set for the shared_pool_size?
This is the advisory of the shared pool taken of the statspack report:
Shared Pool Advisory:
-> Note there is often a 1:Many correlation between a single logical object
   in the Library Cache, and the physical number of memory objects associated
   with it.  Therefore comparing the number of Lib Cache objects (e.g. in
   v$librarycache), with the number of Lib Cache Memory Objects is invalid
                                                          Estd
Shared Pool    SP       Estd         Estd     Estd Lib LC Time
   Size for  Size  Lib Cache    Lib Cache   Cache Time   Saved  Estd Lib Cache
  Estim (M) Factr   Size (M)      Mem Obj    Saved (s)   Factr    Mem Obj Hits
        352    .6        320       83,387    6,248,540     1.0     231,336,205
        416    .7        383       97,436    6,248,634     1.0     231,363,978
        480    .8        446      112,332    6,248,704     1.0     231,389,862
        544    .9        509      126,814    6,248,752     1.0     231,409,576
        608   1.0        572      140,750    6,248,816     1.0     231,427,940
        672   1.1        635      158,171    6,248,842     1.0     231,440,024
        736   1.2        698      173,436    6,248,872     1.0     231,452,513
        800   1.3        761      187,288    6,248,898     1.0     231,464,942
        864   1.4        824      202,502    6,248,914     1.0     231,474,703
        928   1.5        887      216,446    6,248,936     1.0     231,484,732
        992   1.6        950      231,262    6,248,961     1.0     231,496,133
      1,056   1.7      1,013      246,756    6,248,980     1.0     231,511,179
      1,120   1.8      1,076      263,345    6,248,992     1.0     231,519,974
      1,184   1.9      1,139      281,102    6,249,008     1.0     231,529,713
      1,248   2.1      1,212      301,883    6,249,050     1.0     231,538,207
          -------------------------------------------------------------Thanks a lot!