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memory usage, 2 javas, 2 apaches?

From: Amy Hughes <amylugnews_at_hotmail.com>
Date: 17 May 2003 09:10:10 -0700
Message-ID: <e6e16b3b.0305170810.7ba847df@posting.google.com>


I'm looking to learn Oracle, so I purchased a CD pack, a one-year Personal license, a Wrox "Beginning Oracle Programming" book and Alice Rischert's "Oracle SQL" book. I installed Oracle and the documentation last night, then uninstalled the extra-cost options (data mining, spatial, etc).

I'll probably run into answers as I do my reading but right now my system has become bloated and I'd really like to use it for other things, so I thought I might pose these questions...

According to task manager I have two copies of java.exe running using ~18M and ~10M, and I have two copies of Apache.exe running using ~10M and ~31M. Oracle.exe is using ~103M. Is this normal? I've included the output of SQL*Plus "select * from v$sgastat;" below.

I'm wondering if Oracle decided it could use that much memory just because it was available (I have 512M in a 1.7G Celeron system running Win2K Pro), and if I add more if it'll decide it can use it, too? Right now task manager shows I'm using about 410M total with Oracle, Apache and SQL*Plus running (and other stuff). About 200M of this is freed when I shutdown Oracle.

Also, my hard disk is accessed about once per second. This is a new behavior since installing Oracle. What's it doing?

SQL*Plus output follows. I've also included parts of my init.ora file.

Thanks,
Amy

SQL> select * from v$sgastat;

POOL        NAME                            BYTES
----------- -------------------------- ----------
            fixed_sga                      453492
            buffer_cache                 25165824
            log_buffer                     656384
shared pool enqueue                        171860
shared pool KGK heap                         3756
shared pool KQR M PO                       255000
shared pool KQR S PO                        57608
shared pool KQR S SO                         3328
shared pool sessions                       410720
shared pool sql area                      1154700
shared pool 1M buffer                     2098176

POOL        NAME                            BYTES
----------- -------------------------- ----------
shared pool KGLS heap                      591728
shared pool processes                      144000
shared pool parameters                       2088
shared pool free memory                  47079540
shared pool PL/SQL DIANA                   406748
shared pool FileOpenBlock                  695504
shared pool PL/SQL MPCODE                   43976
shared pool library cache                 2025024
shared pool miscellaneous                 3866644
shared pool MTTR advisory                    4220
shared pool PLS non-lib hp                   2068

POOL        NAME                            BYTES
----------- -------------------------- ----------
shared pool joxs heap init                   4220
shared pool kgl simulator                  565268
shared pool sim memory hea                  21164
shared pool table definiti                    168
shared pool trigger defini                   1700
shared pool trigger inform                   1076
shared pool trigger source                    352
shared pool Checkpoint queue               282304
shared pool VIRTUAL CIRCUITS               265160
shared pool dictionary cache              1610880
shared pool ksm_file2sga region            148652

POOL        NAME                            BYTES
----------- -------------------------- ----------
shared pool KSXR receive buffers          1033000
shared pool character set object           274508
shared pool FileIdentificatonBlock         323292
shared pool KSXR large reply queue         166104
shared pool message pool freequeue         834752
shared pool KSXR pending messages que      841036
shared pool event statistics per sess     1718360
shared pool fixed allocation callback         180
large pool  free memory                   8388608
java pool   free memory                  33554432

43 rows selected.

###########################################
# Cache and I/O
###########################################

db_block_size=8192
db_cache_size=25165824
db_file_multiblock_read_count=16
 

###########################################
# Cursors and Library Cache
###########################################
open_cursors=300  

###########################################
# Job Queues
###########################################
job_queue_processes=10  

###########################################
# Miscellaneous
###########################################
aq_tm_processes=1
compatible=9.2.0.0.0  

###########################################
# Optimizer
###########################################
hash_join_enabled=TRUE
query_rewrite_enabled=FALSE
star_transformation_enabled=FALSE  

###########################################
# Pools
###########################################
java_pool_size=33554432
large_pool_size=8388608
shared_pool_size=50331648  

###########################################
# Processes and Sessions
###########################################
processes=150  

###########################################
# Redo Log and Recovery
###########################################
fast_start_mttr_target=300  

###########################################
# Sort, Hash Joins, Bitmap Indexes
###########################################
pga_aggregate_target=25165824
sort_area_size=524288  

###########################################
# System Managed Undo and Rollback Segments
###########################################

undo_management=AUTO
undo_retention=10800
undo_tablespace=UNDOTBS1
Received on Sat May 17 2003 - 11:10:10 CDT

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