'Maximum Performance' protection in oracle 11g

Hi,
I am working on dataguard setup in oracle 11g maximum
'Maximum Performance' mode requires Standby redo logs
i was doing switch over test and i am getting this error appreciated for your inputs.
DGMGRL> show configuration verbose;
Configuration
Name:                qecgpoce_DG
Enabled:             YES
Protection Mode:     MaxPerformance
Databases:
    qecgpoce - Primary database
    qecgpoca - Physical standby database
Fast-Start Failover: DISABLED
Current status for "qecgpoce_DG":
Warning: ORA-16607: one or more databases have failed
DGMGRL> show database verbose qecgpoce;
Database
Name:            qecgpoce
Role:            PRIMARY
Enabled:         YES
Intended State: TRANSPORT-ON
Instance(s):
    qecgpoce
Properties:
    DGConnectIdentifier             = 'qecgpoce'
    ObserverConnectIdentifier       = ''
    LogXptMode                      = 'SYNC'
    DelayMins                       = '0'
    Binding                         = 'OPTIONAL'
    MaxFailure                      = '0'
    MaxConnections                  = '1'
    ReopenSecs                      = '300'
    NetTimeout                      = '30'
    RedoCompression                 = 'DISABLE'
    LogShipping                     = 'ON'
    PreferredApplyInstance          = ''
    ApplyInstanceTimeout            = '0'
    ApplyParallel                   = 'AUTO'
    StandbyFileManagement           = 'AUTO'
    ArchiveLagTarget                = '0'
    LogArchiveMaxProcesses          = '4'
    LogArchiveMinSucceedDest        = '1'
    DbFileNameConvert               = '/mounts/qecgpoca_data/oradata/qecgpoca/dbfiles, /mounts/qecgpoce_data/oradata/qecgpoce/dbfiles'
    LogFileNameConvert              = '/u01/app/oracle/admin/qecgpoca/arch, /u01/app/oracle/admin/qecgpoce/arch'
    FastStartFailoverTarget         = ''
    StatusReport                    = '(monitor)'
    InconsistentProperties          = '(monitor)'
    InconsistentLogXptProps         = '(monitor)'
    SendQEntries                    = '(monitor)'
    LogXptStatus                    = '(monitor)'
    RecvQEntries                    = '(monitor)'
    HostName                        = 'ieedc-vzdb17'
    SidName                         = 'qecgpoce'
    StaticConnectIdentifier         = '(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ieedc-vzdb17)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=qecgpoce_DGMGRL)(INSTANCE_NAME=qecgpoce)(SERVER=DEDICATED)))'
    StandbyArchiveLocation          = '/u01/app/oracle/admin/qecgpoce/arch'
    AlternateLocation               = ''
    LogArchiveTrace                 = '0'
    LogArchiveFormat                = 'qecgpoc%s%t%r.arc'
    LatestLog                       = '(monitor)'
    TopWaitEvents                   = '(monitor)'
Current status for "qecgpoce":
Warning: ORA-16789: standby redo logs not configured
DGMGRL> show database verbose qecgpoca;
Database
Name:            qecgpoca
Role:            PHYSICAL STANDBY
Enabled:         YES
Intended State: APPLY-ON
Instance(s):
    qecgpoca
Properties:
    DGConnectIdentifier             = 'qecgpoca'
    ObserverConnectIdentifier       = ''
    LogXptMode                      = 'ARCH'
    DelayMins                       = '0'
    Binding                         = 'OPTIONAL'
    MaxFailure                      = '0'
    MaxConnections                  = '1'
    ReopenSecs                      = '300'
    NetTimeout                      = '30'
    RedoCompression                 = 'DISABLE'
    LogShipping                     = 'ON'
    PreferredApplyInstance          = ''
    ApplyInstanceTimeout            = '0'
    ApplyParallel                   = 'AUTO'
    StandbyFileManagement           = 'AUTO'
    ArchiveLagTarget                = '0'
    LogArchiveMaxProcesses          = '4'
    LogArchiveMinSucceedDest        = '1'
    DbFileNameConvert               = '/mounts/qecgpoce_data/oradata/qecgpoce/dbfiles, /mounts/qecgpoca_data/oradata/qecgpoca/dbfiles'
    LogFileNameConvert              = '/u01/app/oracle/admin/qecgpoce/arch, /u01/app/oracle/admin/qecgpoca/arch'
    FastStartFailoverTarget         = ''
    StatusReport                    = '(monitor)'
    InconsistentProperties          = '(monitor)'
    InconsistentLogXptProps         = '(monitor)'
    SendQEntries                    = '(monitor)'
    LogXptStatus                    = '(monitor)'
    RecvQEntries                    = '(monitor)'
    HostName                        = 'usadc-vzdb32'
    SidName                         = 'qecgpoca'
    StaticConnectIdentifier         = '(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=usadc-vzdb32)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=qecgpoca_DGMGRL)(INSTANCE_NAME=qecgpoca)(SERVER=DEDICATED)))'
    StandbyArchiveLocation          = '/u01/app/oracle/admin/qecgpoca/arch'
    AlternateLocation               = ''
    LogArchiveTrace                 = '0'
    LogArchiveFormat                = 'qecgpoc%s%t%r.arc'
    LatestLog                       = '(monitor)'
    TopWaitEvents                   = '(monitor)'
Current status for "qecgpoca":
Error: ORA-16766: Redo Apply is stoppedThanks
Prakash

Hi,
secondary parameter file;
SQL> show parameter _
NAME                                 TYPE        VALUE
O7_DICTIONARY_ACCESSIBILITY          boolean     FALSE
active_instance_count                integer
aq_tm_processes                      integer     0
archive_lag_target                   integer     0
asm_diskgroups                       string
asm_diskstring                       string
asm_power_limit                      integer     1
asm_preferred_read_failure_groups    string
audit_file_dest                      string      /u01/app/oracle/admin/qecgpoca
                                                 /adump
audit_sys_operations                 boolean     FALSE
NAME                                 TYPE        VALUE
audit_syslog_level                   string
audit_trail                          string      NONE
background_core_dump                 string      partial
background_dump_dest                 string      /u01/app/oracle/admin/qecgpoca
                                                 /diagnostic/diag/rdbms/qecgpoc
                                                 a/qecgpoca/trace
backup_tape_io_slaves                boolean     FALSE
bitmap_merge_area_size               integer     1048576
blank_trimming                       boolean     FALSE
buffer_pool_keep                     string
buffer_pool_recycle                  string
NAME                                 TYPE        VALUE
cell_offload_compaction              string      ADAPTIVE
cell_offload_parameters              string
cell_offload_plan_display            string      AUTO
cell_offload_processing              boolean     TRUE
cell_partition_large_extents         string      DEFAULT
circuits                             integer
client_result_cache_lag              big integer 3000
client_result_cache_size             big integer 0
cluster_database                     boolean     FALSE
cluster_database_instances           integer     1
cluster_interconnects                string
NAME                                 TYPE        VALUE
commit_logging                       string
commit_point_strength                integer     1
commit_wait                          string
commit_write                         string
compatible                           string      11.0.0.0.0
control_file_record_keep_time        integer     7
control_files                        string      /mounts/qecgpoca_data/oradata/
                                                 qecgpoca/dbfiles/control.ctl
control_management_pack_access       string      DIAGNOSTIC+TUNING
core_dump_dest                       string      /u01/app/oracle/admin/qecgpoca
                                                 /cdump/
NAME                                 TYPE        VALUE
cpu_count                            integer     16
create_bitmap_area_size              integer     8388608
create_stored_outlines               string
cursor_sharing                       string      EXACT
cursor_space_for_time                boolean     FALSE
db_16k_cache_size                    big integer 0
db_2k_cache_size                     big integer 0
db_32k_cache_size                    big integer 0
db_4k_cache_size                     big integer 0
db_8k_cache_size                     big integer 0
db_block_buffers                     integer     0
NAME                                 TYPE        VALUE
db_block_checking                    string      FALSE
db_block_checksum                    string      TYPICAL
db_block_size                        integer     8192
db_cache_advice                      string      ON
db_cache_size                        big integer 168M
db_create_file_dest                  string
db_create_online_log_dest_1          string
db_create_online_log_dest_2          string
db_create_online_log_dest_3          string
db_create_online_log_dest_4          string
db_create_online_log_dest_5          string
db_domain                            string
db_file_multiblock_read_count        integer     61
db_file_name_convert                 string      /mounts/qecgpoce_data/oradata/
                                                 qecgpoce/dbfiles, /mounts/qecg
                                                 poca_data/oradata/qecgpoca/dbf
                                                 iles
db_files                             integer     200
db_flashback_retention_target        integer     1440
db_keep_cache_size                   big integer 0
db_lost_write_protect                string      NONE
db_name                              string      qecgpoce
NAME                                 TYPE        VALUE
db_recovery_file_dest                string
db_recovery_file_dest_size           big integer 0
db_recycle_cache_size                big integer 0
db_securefile                        string      PERMITTED
db_ultra_safe                        string      OFF
db_unique_name                       string      qecgpoca
db_writer_processes                  integer     4
dbwr_io_slaves                       integer     0
ddl_lock_timeout                     integer     0
dg_broker_config_file1               string      /u01/app/oracle/product/11.1.0
                                                 .7/dbs/dr1qecgpoca.dat
NAME                                 TYPE        VALUE
dg_broker_config_file2               string      /u01/app/oracle/product/11.1.0
                                                 .7/dbs/dr2qecgpoca.dat
dg_broker_start                      boolean     TRUE
diagnostic_dest                      string      /u01/app/oracle/admin/qecgpoca
                                                 /diagnostic
disk_asynch_io                       boolean     TRUE
dispatchers                          string
distributed_lock_timeout             integer     60
dml_locks                            integer     1472
drs_start                            boolean     FALSE
enable_ddl_logging                   boolean     FALSE
NAME                                 TYPE        VALUE
event                                string
fal_client                           string      qecgpoca
fal_server                           string      qecgpoce
fast_start_io_target                 integer     0
fast_start_mttr_target               integer     300
fast_start_parallel_rollback         string      LOW
file_mapping                         boolean     FALSE
fileio_network_adapters              string
filesystemio_options                 string      asynch
fixed_date                           string
gc_files_to_locks                    string
NAME                                 TYPE        VALUE
gcs_server_processes                 integer     0
global_context_pool_size             string
global_names                         boolean     FALSE
global_txn_processes                 integer     1
hash_area_size                       integer     131072
hi_shared_memory_address             integer     0
hs_autoregister                      boolean     TRUE
ifile                                file
instance_groups                      string
instance_name                        string      qecgpoca
instance_number                      integer     0
NAME                                 TYPE        VALUE
instance_type                        string      RDBMS
java_jit_enabled                     boolean     TRUE
java_max_sessionspace_size           integer     0
java_pool_size                       big integer 152M
java_soft_sessionspace_limit         integer     0
job_queue_processes                  integer     0
large_pool_size                      big integer 4M
ldap_directory_access                string      NONE
ldap_directory_sysauth               string      no
license_max_sessions                 integer     0
license_max_users                    integer     0
NAME                                 TYPE        VALUE
license_sessions_warning             integer     0
local_listener                       string
lock_name_space                      string
lock_sga                             boolean     FALSE
log_archive_config                   string      dg_config=(qecgpoce,qecgpoca)
log_archive_dest                     string
log_archive_dest_1                   string      location="/u01/app/oracle/admi
                                                 n/qecgpoca/arch", valid_for=(
                                                 ALL_LOGFILES,ALL_ROLES)
log_archive_dest_10                  string
log_archive_dest_2                   string      service=qecgpoce lgwr async va
NAME                                 TYPE        VALUE
                                                 lid_for=(online_logfiles,prima
                                                 ry_role) db_unique_name=qecgpo
                                                 ce
log_archive_dest_3                   string
log_archive_dest_4                   string
log_archive_dest_5                   string
log_archive_dest_6                   string
log_archive_dest_7                   string
log_archive_dest_8                   string
log_archive_dest_9                   string
log_archive_dest_state_1             string      ENABLE
NAME                                 TYPE        VALUE
log_archive_dest_state_10            string      enable
log_archive_dest_state_2             string      enable
log_archive_dest_state_3             string      enable
log_archive_dest_state_4             string      enable
log_archive_dest_state_5             string      enable
log_archive_dest_state_6             string      enable
log_archive_dest_state_7             string      enable
log_archive_dest_state_8             string      enable
log_archive_dest_state_9             string      enable
log_archive_duplex_dest              string
log_archive_format                   string      qecgpoc%s%t%r.arc
NAME                                 TYPE        VALUE
log_archive_local_first              boolean     TRUE
log_archive_max_processes            integer     4
log_archive_min_succeed_dest         integer     1
log_archive_start                    boolean     FALSE
log_archive_trace                    integer     0
log_buffer                           integer     4197376
log_checkpoint_interval              integer     0
log_checkpoint_timeout               integer     1800
log_checkpoints_to_alert             boolean     FALSE
log_file_name_convert                string      /u01/app/oracle/admin/qecgpoce
                                                 /arch, /u01/app/oracle/admin/q
NAME                                 TYPE        VALUE
                                                 ecgpoca/arch
max_commit_propagation_delay         integer     0
max_dispatchers                      integer
max_dump_file_size                   string      unlimited
max_enabled_roles                    integer     150
max_shared_servers                   integer
memory_max_target                    big integer 0
memory_target                        big integer 0
nls_calendar                         string
nls_comp                             string      BINARY
nls_currency                         string
NAME                                 TYPE        VALUE
nls_date_format                      string
nls_date_language                    string
nls_dual_currency                    string
nls_iso_currency                     string
nls_language                         string      AMERICAN
nls_length_semantics                 string      BYTE
nls_nchar_conv_excp                  string      FALSE
nls_numeric_characters               string
nls_sort                             string
nls_territory                        string      AMERICA
nls_time_format                      string
NAME                                 TYPE        VALUE
nls_time_tz_format                   string
nls_timestamp_format                 string
nls_timestamp_tz_format              string
object_cache_max_size_percent        integer     10
object_cache_optimal_size            integer     102400
olap_page_pool_size                  big integer 0
open_cursors                         integer     300
open_links                           integer     4
open_links_per_instance              integer     4
optimizer_capture_sql_plan_baselines boolean     FALSE
optimizer_dynamic_sampling           integer     2
NAME                                 TYPE        VALUE
optimizer_features_enable            string      11.1.0.7
optimizer_index_caching              integer     0
optimizer_index_cost_adj             integer     100
optimizer_mode                       string      ALL_ROWS
optimizer_secure_view_merging        boolean     TRUE
optimizer_use_invisible_indexes      boolean     FALSE
optimizer_use_pending_statistics     boolean     FALSE
optimizer_use_sql_plan_baselines     boolean     TRUE
os_authent_prefix                    string      ops$
os_roles                             boolean     FALSE
parallel_adaptive_multi_user         boolean     FALSE
NAME                                 TYPE        VALUE
parallel_automatic_tuning            boolean     FALSE
parallel_execution_message_size      integer     2152
parallel_instance_group              string
parallel_io_cap_enabled              boolean     FALSE
parallel_max_servers                 integer     2
parallel_min_percent                 integer     0
parallel_min_servers                 integer     0
parallel_server                      boolean     FALSE
parallel_server_instances            integer     1
parallel_threads_per_cpu             integer     2
pga_aggregate_target                 big integer 100M
NAME                                 TYPE        VALUE
plscope_settings                     string      IDENTIFIERS:NONE
plsql_ccflags                        string
plsql_code_type                      string      INTERPRETED
plsql_debug                          boolean     FALSE
plsql_native_library_dir             string
plsql_native_library_subdir_count    integer     0
plsql_optimize_level                 integer     2
plsql_v2_compatibility               boolean     FALSE
plsql_warnings                       string      DISABLE:ALL
pre_page_sga                         boolean     FALSE
processes                            integer     300
NAME                                 TYPE        VALUE
query_rewrite_enabled                string      TRUE
query_rewrite_integrity              string      enforced
rdbms_server_dn                      string
read_only_open_delayed               boolean     FALSE
recovery_parallelism                 integer     0
recyclebin                           string      on
redo_transport_user                  string
remote_dependencies_mode             string      TIMESTAMP
remote_listener                      string
remote_login_passwordfile            string      EXCLUSIVE
remote_os_authent                    boolean     FALSE
NAME                                 TYPE        VALUE
remote_os_roles                      boolean     FALSE
replication_dependency_tracking      boolean     TRUE
resource_limit                       boolean     FALSE
resource_manager_cpu_allocation      integer     16
resource_manager_plan                string      SYSTEM_PLAN
result_cache_max_result              integer     5
result_cache_max_size                big integer 5M
result_cache_mode                    string      MANUAL
result_cache_remote_expiration       integer     0
resumable_timeout                    integer     0
rollback_segments                    string
NAME                                 TYPE        VALUE
sec_case_sensitive_logon             boolean     TRUE
sec_max_failed_login_attempts        integer     10
sec_protocol_error_further_action    string      CONTINUE
sec_protocol_error_trace_action      string      TRACE
sec_return_server_release_banner     boolean     FALSE
serial_reuse                         string      disable
service_names                        string      qecgpoca
session_cached_cursors               integer     50
session_max_open_files               integer     10
sessions                             integer     335
sga_max_size                         big integer 1000M
sga_target                           big integer 0
shadow_core_dump                     string      partial
shared_memory_address                integer     0
shared_pool_reserved_size            big integer 25M
shared_pool_size                     big integer 500M
shared_server_sessions               integer
shared_servers                       integer     0
skip_unusable_indexes                boolean     TRUE
smtp_out_server                      string
sort_area_retained_size              integer     0
sort_area_size                       integer     65536
NAME                                 TYPE        VALUE
spfile                               string      /u01/app/oracle/product/11.1.0
                                                 .7/dbs/spfileqecgpoca.ora
sql92_security                       boolean     FALSE
sql_trace                            boolean     FALSE
sql_version                          string      NATIVE
sqltune_category                     string      DEFAULT
standby_archive_dest                 string      ?/dbs/arch
standby_file_management              string      AUTO
star_transformation_enabled          string      FALSE
statistics_level                     string      TYPICAL
streams_pool_size                    big integer 0
NAME                                 TYPE        VALUE
tape_asynch_io                       boolean     TRUE
thread                               integer     0
timed_os_statistics                  integer     0
timed_statistics                     boolean     TRUE
trace_enabled                        boolean     TRUE
tracefile_identifier                 string
transactions                         integer     368
transactions_per_rollback_segment    integer     5
undo_management                      string      AUTO
undo_retention                       integer     900
undo_tablespace                      string      UNDOTBS1
sort_area_retained_size              integer     0
sort_area_size                       integer     65536
NAME                                 TYPE        VALUE
spfile                               string      /u01/app/oracle/product/11.1.0
                                                 .7/dbs/spfileqecgpoca.ora
sql92_security                       boolean     FALSE
sql_trace                            boolean     FALSE
sql_version                          string      NATIVE
sqltune_category                     string      DEFAULT
standby_archive_dest                 string      ?/dbs/arch
standby_file_management              string      AUTO
star_transformation_enabled          string      FALSE
statistics_level                     string      TYPICAL
streams_pool_size                    big integer 0
NAME                                 TYPE        VALUE
tape_asynch_io                       boolean     TRUE
thread                               integer     0
timed_os_statistics                  integer     0
timed_statistics                     boolean     TRUE
trace_enabled                        boolean     TRUE
tracefile_identifier                 string
transactions                         integer     368
transactions_per_rollback_segment    integer     5
undo_management                      string      AUTO
undo_retention                       integer     900
undo_tablespace                      string      UNDOTBS1
NAME                                 TYPE        VALUE
use_indirect_data_buffers            boolean     FALSE
user_dump_dest                       string      /u01/app/oracle/admin/qecgpoca
                                                 /diagnostic/diag/rdbms/qecgpoc
                                                 a/qecgpoca/trace
utl_file_dir                         string
workarea_size_policy                 string      AUTO
xml_db_events                        string      enableThanks
Prakash

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     Package: gcc-3.4.6     FAILED
Package: compat-libstdc++-33-3.2.3     FAILED
     Package: elfutils-libelf-devel-0.97     FAILED
     Package: glibc-devel-2.3.4     FAILED
     Package: glibc-headers-2.3.4      FAILED
     Package: gcc-c++-3.4.6     FAILED
     Package: libaio-devel-0.3.105     FAILED
     Package: libstdc++-devel-3.4.6     FAILED
     Package: unixODBC-devel-2.2.11     FAILED
     Package: pdksh-5.2.14     FAILED
Previously i got Hard Limit : maximun Use rlimit process.
I've solved them by running appropriate Script file.
But i can't the understand the above errors as i'm totally NEWBIE to Linux(I've preciously have an experience of Installation of above mentioned version of DBMS on WIndows 7 32 bit OS)
My Linux OS Details:
when the following command executed: df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda6 50G 11G 37G 22% /
tmpfs 1.8G 608K 1.8G 1% /dev/shm
Also Kernel architecture:
for uanme -r
i got
2.6.32-44.1.el6.i686
Please Help me to solve my errors .........I'm totally Confused of new OS parameters.
Thanks in advace for Help
Regard's Tejaswi.

Hi;
Oracle 11gR2 is not certified wiht RHEL6 yet. Its mean you ar making installation on uncertified platform.
Please check certfication matrix
Oracle Certification matrix:
http://www.oracle.com/technology/support/metalink/index.html
Also see:
Oracle® Database on Unix AIX®,HP-UX®,Linux®,Mac OS® X,Solaris®,Tru64 Unix® Operating Systems Installation and Configuration Requirements Quick Reference (8.0.5 to 11.2) [ID 169706.1]
Installation guide:
http://download.oracle.com/docs/cd/E11882_01/install.112/e16763/pre_install.htm#CHDFFBIF
Regard
Helios

ORACLE 11g R1 Email Alerts

Hi
I would like to send sql staments result set in a email to mutiple recepients. Result can be in body of email /xls attachment. is there any pl.sql scripts available to perform same in oracle 11g r1.
Thanks
Raj

http://docs.oracle.com/cd/B28359_01/appdev.111/b28419/u_smtp.htm
Examples
The following example illustrates how UTL_SMTP is used by an application to send e-mail. The application connects to an SMTP server at port 25 and sends a simple text message.
DECLARE
c UTL_SMTP.CONNECTION;
PROCEDURE send_header(name IN VARCHAR2, header IN VARCHAR2) AS
BEGIN
    UTL_SMTP.WRITE_DATA(c, name || ': ' || header || UTL_TCP.CRLF);
END;
BEGIN
c := UTL_SMTP.OPEN_CONNECTION('smtp-server.acme.com');
UTL_SMTP.HELO(c, 'foo.com');
UTL_SMTP.MAIL(c, '[email protected]');
UTL_SMTP.RCPT(c, '[email protected]');
UTL_SMTP.OPEN_DATA(c);
send_header('From',    '"Sender" <[email protected]>');
send_header('To',      '"Recipient" <[email protected]>');
send_header('Subject', 'Hello');
UTL_SMTP.WRITE_DATA(c, UTL_TCP.CRLF || 'Hello, world!');
UTL_SMTP.CLOSE_DATA(c);
UTL_SMTP.QUIT(c);
EXCEPTION
WHEN utl_smtp.transient_error OR utl_smtp.permanent_error THEN
    BEGIN
      UTL_SMTP.QUIT(c);
    EXCEPTION
      WHEN UTL_SMTP.TRANSIENT_ERROR OR UTL_SMTP.PERMANENT_ERROR THEN
        NULL; -- When the SMTP server is down or unavailable, we don't have
              -- a connection to the server. The QUIT call will raise an
              -- exception that we can ignore.
    END;
    raise_application_error(-20000,
      'Failed to send mail due to the following error: ' || sqlerrm);
END;

Oracle 11g Performance tuning approach ?

Hello Experts,
Is it the right forum to follow oracle performance tuning discussions ? If not, let me know what will be the forum to pick up some thread on this subject.
I am looking for performance tuning approach for oracle 11g. I learned there are some new items in 11g in this regard. For persons, who did tuning in earlier versions of Oracle,
what will be the best way adopt to 11 g?
I reviewed the 11g performance tuning guide, but I am looking for some white papers/blogs with case studies and practical approaches. I hope that you have used them.
What are the other sources to pick up some discussions?
Do you mind, share your thoughts?
Thanks in advance.
RI

The best sources of information on performance tuning are:
1. Jonathan Lewis: http://jonathanlewis.wordpress.com/all-postings/
2. Christian Antognini: http://www.antognini.ch/
3. Tanel Poder: http://blog.tanelpoder.com/
4. Richard Foote: http://richardfoote.wordpress.com/
5. Cary Millsap: http://carymillsap.blogspot.com/
and a few dozen others whose blogs you will find cross-referenced in those above.

Oracle 11g advantages for performance

Hello,
I am doing test of Client side result set cache on oracle 11 g rel2 ,O/S- RHEL
i am doing test as below on 2 Oracle 11g rel2 test servers on RHEL
one oracle 11g rel2 instance is used as server1,from other oracle 11g rel2 server2, i am running queries connecting to server1 through sqlplus,listener(tnsnames )
i run query few times without any client cache settings then
i have set init.ora paras for oracle 11g rel2 for client result cache,cache size/cache lag
i run the same query few times
in both the cases after each run i am noting statistics
select * from V$RESULT_CACHE_OBJECTS;
select * from V$CLIENT_RESULT_CACHE_STATS;
select * from gv$cpool_conn_info;
also autotrace,plan etc
but after using cache this views are getting poplulated ,autiotrace plan shows cache is used
but i cant see any improvement in performance after using client cache like speed,reduce network trip, etc
in fact without using cache/with no hint ,query executes faster
let me know if i am missing something,i believe sqlplus internally using OCI
thanks

>
I tested with custom code using java/jdbc thin driver ,connecting same as between 2 oracle 11g2 instance 1 as client other server,running code calling queries from client connecting to server
>
Unless you plan to provide the information ask for about what it is you are doing there really isn't any point in providing status updates that: you test this, you tested that. You made several statements about what you were doing
>
i have set init.ora paras for oracle 11g rel2 for client result cache,cache size/cache lag
i run the same query few times
in both the cases after each run i am noting statistics
select * from V$RESULT_CACHE_OBJECTS;
select * from V$CLIENT_RESULT_CACHE_STATS;
select * from gv$cpool_conn_info;
also autotrace,plan etc
>
and were asked to provide specific information that you haven't provided nor have you provided the query.
>
You say you are doing a bunch of things
But you don't post any of those results so we can see what it is you are looking at.
No one can comment on things they can't see.
>
You have to be using OCI for client side caching so if you use the Java thin driver but don't use OCI there won't be any cacheing. There also won't be any if it is not enabled or if the query has certain constraints as listed in the doc
http://docs.oracle.com/cd/B28359_01/appdev.111/b28395/oci10new.htm#CHDGGFEF
>
Queries that are not Cached
There are queries that are not cached on the OCI client even if the result cache hint is specified. Such queries may be cached on the database if the server result cache feature is enabled (see Oracle Database Concepts, "SQL Query Result Cache" for more information). If a SQL query includes any of the following, then the result set of that query is not cached in the OCI client result cache:
•Views
•Remote objects
•Complex types in the select list
•Snapshot-based or flashback queries
•Queries executed in a serializable, read-only transaction, or inside a flashback session
•Queries that have PL/SQL functions in them
•Queries that have VPD policies enabled on the tables
>
This Oracle-Developer.net article author doesn't seem to have any trouble caching results.
http://www.oracle-developer.net/display.php?id=503

Oracle 11g Migration performance issue

Hello,
There a performance issue with Migration from Oracle 10g(10.2.0.5) to Oracle 11g(11.2.0.2).
Its very simple statement hanging for more than a day and later found that query plan is very very bad. Example of the query is given below:
INSERT INTO TABLE_XYZ
SELECT F1,F2,F3
FROM TABLE_AB, TABLE_BC
WHERE F1=F4;
While looking at cost in Explain plan :
on 10g --> 62567
0n 11g --> 9879652356776
Strange thing is that
Scenario 1: if I issue just query as shown below, will display rows immediately :
SELECT F1,F2,F3
FROM TABLE_AB, TABLE_BC
WHERE F1=F4;
Scenario 2: If I create a table as shown below, will work correctly.
CREATE TABLE TABLE_XYZ AS
SELECT F1,F2,F3
FROM TABLE_AB, TABLE_BC
WHERE F1=F4;
What could be the issue here with INSERT INTO <TAB> SELECT <COL> FROM <TAB1>?

Table:
CREATE TABLE AVN_WRK_F_RENEWAL_TRANS_T
"PKSRCSYSTEMID" NUMBER(4,0) NOT NULL ENABLE,
"PKCOMPANYCODE" VARCHAR2(8 CHAR) NOT NULL ENABLE,
"PKBRANCHCODE" VARCHAR2(8 CHAR) NOT NULL ENABLE,
"PKLINEOFBUSINESS" NUMBER(4,0) NOT NULL ENABLE,
"PKPRODUCINGOFFICELIST" VARCHAR2(2 CHAR) NOT NULL ENABLE,
"PKPRODUCINGOFFICE" VARCHAR2(8 CHAR) NOT NULL ENABLE,
"PKEXPIRYYR" NUMBER(4,0) NOT NULL ENABLE,
"PKEXPIRYMTH" NUMBER(2,0) NOT NULL ENABLE,
"CURRENTEXPIRYCOUNT" NUMBER,
"CURRENTRENEWEDCOUNT" NUMBER,
"PREVIOUSEXPIRYCOUNT" NUMBER,
"PREVIOUSRENEWEDCOUNT" NUMBER
SEGMENT CREATION IMMEDIATE PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING STORAGE
INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT
TABLESPACE "XYZ" ;
Explain Plan(With Insert Statement and Query):_
INSERT STATEMENT, GOAL = ALL_ROWS               Cost=9110025395866     Cardinality=78120     Bytes=11952360
LOAD TABLE CONVENTIONAL     Object owner=ODS     Object name=AVN_WRK_F_RENEWAL_TRANS
NESTED LOOPS OUTER               Cost=9110025395866     Cardinality=78120     Bytes=11952360
TABLE ACCESS FULL     Object owner=ODS     Object name=AVN_WRK_F_RENEWAL_TRANS_1ST     Cost=115     Cardinality=78120     Bytes=2499840
VIEW PUSHED PREDICATE     Object owner=ODS          Cost=116615788     Cardinality=1     Bytes=121
SORT GROUP BY               Cost=116615788     Cardinality=3594     Bytes=406122
VIEW     Object owner=SYS     Object name=VW_DAG_1     Cost=116615787     Cardinality=20168     Bytes=2278984
SORT GROUP BY               Cost=116615787     Cardinality=20168     Bytes=4073936
NESTED LOOPS OUTER               Cost=116614896     Cardinality=20168     Bytes=4073936
VIEW     Object owner=SYS          Cost=5722     Cardinality=20168     Bytes=2157976
NESTED LOOPS               Cost=5722     Cardinality=20168     Bytes=2097472
HASH JOIN               Cost=924     Cardinality=1199     Bytes=100716
NESTED LOOPS
NESTED LOOPS               Cost=181     Cardinality=1199     Bytes=80333
TABLE ACCESS BY INDEX ROWID     Object owner=ODS     Object name=INWARDSPOLICYDETAILS     Cost=159     Cardinality=1199     Bytes=39567
INDEX RANGE SCAN     Object owner=ODS     Object name=IX_INWPOLDTLS_SYSCOMPANYBRANCH     Cost=7     Cardinality=1199
INDEX UNIQUE SCAN     Object owner=ODS     Object name=PK_AVN_D_MASTERPOLICYDETAILS     Cost=0     Cardinality=1
TABLE ACCESS BY INDEX ROWID     Object owner=ODS     Object name=AVN_D_MASTERPOLICYDETAILS     Cost=1     Cardinality=1     Bytes=34
TABLE ACCESS FULL     Object owner=ODS     Object name=INWARDSPOLICYLOBMAPPING     Cost=741     Cardinality=288498     Bytes=4904466
VIEW PUSHED PREDICATE     Object owner=ODS          Cost=4     Cardinality=1     Bytes=20
FILTER
SORT AGGREGATE                    Cardinality=1     Bytes=21
TABLE ACCESS BY GLOBAL INDEX ROWID     Object owner=ODS     Object name=AVN_F_TRANSACTIONS     Cost=4     Cardinality=1     Bytes=21
INDEX RANGE SCAN     Object owner=ODS     Object name=PK_AVN_F_TRANSACTIONS     Cost=3     Cardinality=1
VIEW PUSHED PREDICATE     Object owner=ODS          Cost=5782     Cardinality=1     Bytes=95
SORT GROUP BY               Cost=5782     Cardinality=2485     Bytes=216195
VIEW     Object owner=SYS     Object name=VW_DAG_0     Cost=5781     Cardinality=2485     Bytes=216195
SORT GROUP BY               Cost=5781     Cardinality=2485     Bytes=278320
HASH JOIN               Cost=5780     Cardinality=2485     Bytes=278320
VIEW     Object owner=SYS     Object name=VW_GBC_15     Cost=925     Cardinality=1199     Bytes=73139
SORT GROUP BY               Cost=925     Cardinality=1199     Bytes=100716
HASH JOIN               Cost=924     Cardinality=1199     Bytes=100716
NESTED LOOPS
NESTED LOOPS               Cost=181     Cardinality=1199     Bytes=80333
TABLE ACCESS BY INDEX ROWID     Object owner=ODS     Object name=INWARDSPOLICYDETAILS     Cost=159     Cardinality=1199     Bytes=39567
INDEX RANGE SCAN     Object owner=ODS     Object name=IX_INWPOLDTLS_SYSCOMPANYBRANCH     Cost=7     Cardinality=1199
INDEX UNIQUE SCAN     Object owner=ODS     Object name=PK_AVN_D_MASTERPOLICYDETAILS     Cost=0     Cardinality=1
TABLE ACCESS BY INDEX ROWID     Object owner=ODS     Object name=AVN_D_MASTERPOLICYDETAILS     Cost=1     Cardinality=1     Bytes=34
TABLE ACCESS FULL     Object owner=ODS     Object name=INWARDSPOLICYLOBMAPPING     Cost=741     Cardinality=288498     Bytes=4904466
VIEW     Object owner=SYS     Object name=VW_GBF_16     Cost=4854     Cardinality=75507     Bytes=3850857
SORT GROUP BY               Cost=4854     Cardinality=75507     Bytes=2340717
VIEW     Object owner=ODS          Cost=4207     Cardinality=75507     Bytes=2340717
SORT GROUP BY               Cost=4207     Cardinality=75507     Bytes=1585647
PARTITION HASH ALL               Cost=3713     Cardinality=75936     Bytes=1594656
TABLE ACCESS FULL     Object owner=ODS     Object name=AVN_F_TRANSACTIONS     Cost=3713     Cardinality=75936     Bytes=1594656
Explain Plan(Only Query):_
SELECT STATEMENT, GOAL = ALL_ROWS               Cost=62783     Cardinality=89964     Bytes=17632944
HASH JOIN OUTER               Cost=62783     Cardinality=89964     Bytes=17632944
TABLE ACCESS FULL     Object owner=ODS     Object name=AVN_WRK_F_RENEWAL_TRANS_1ST     Cost=138     Cardinality=89964     Bytes=2878848
VIEW     Object owner=ODS          Cost=60556     Cardinality=227882     Bytes=37372648
HASH GROUP BY               Cost=60556     Cardinality=227882     Bytes=26434312
VIEW     Object owner=SYS     Object name=VW_DAG_1     Cost=54600     Cardinality=227882     Bytes=26434312
HASH GROUP BY               Cost=54600     Cardinality=227882     Bytes=36005356
HASH JOIN OUTER               Cost=46664     Cardinality=227882     Bytes=36005356
VIEW     Object owner=SYS          Cost=18270     Cardinality=227882     Bytes=16635386
HASH JOIN               Cost=18270     Cardinality=227882     Bytes=32587126
HASH JOIN               Cost=12147     Cardinality=34667     Bytes=2912028
HASH JOIN               Cost=10076     Cardinality=34667     Bytes=2322689
TABLE ACCESS FULL     Object owner=ODS     Object name=AVN_D_MASTERPOLICYDETAILS     Cost=137     Cardinality=34667     Bytes=1178678
TABLE ACCESS FULL     Object owner=ODS     Object name=INWARDSPOLICYDETAILS     Cost=9934     Cardinality=820724     Bytes=27083892
TABLE ACCESS FULL     Object owner=ODS     Object name=INWARDSPOLICYLOBMAPPING     Cost=741     Cardinality=866377     Bytes=14728409
VIEW     Object owner=ODS          Cost=5195     Cardinality=227882     Bytes=13445038
HASH GROUP BY               Cost=5195     Cardinality=227882     Bytes=4785522
PARTITION HASH ALL               Cost=3717     Cardinality=227882     Bytes=4785522
TABLE ACCESS FULL     Object owner=ODS     Object name=AVN_F_TRANSACTIONS     Cost=3717     Cardinality=227882     Bytes=4785522
VIEW     Object owner=ODS          Cost=26427     Cardinality=227882     Bytes=19369970
HASH GROUP BY               Cost=26427     Cardinality=227882     Bytes=18686324
VIEW     Object owner=SYS     Object name=VW_DAG_0     Cost=26427     Cardinality=227882     Bytes=18686324
HASH GROUP BY               Cost=26427     Cardinality=227882     Bytes=25294902
HASH JOIN               Cost=20687     Cardinality=227882     Bytes=25294902
VIEW     Object owner=SYS     Object name=VW_GBC_15     Cost=12826     Cardinality=34667     Bytes=2080020
HASH GROUP BY               Cost=12826     Cardinality=34667     Bytes=2912028
HASH JOIN               Cost=12147     Cardinality=34667     Bytes=2912028
HASH JOIN               Cost=10076     Cardinality=34667     Bytes=2322689
TABLE ACCESS FULL     Object owner=ODS     Object name=AVN_D_MASTERPOLICYDETAILS     Cost=137     Cardinality=34667     Bytes=1178678
TABLE ACCESS FULL     Object owner=ODS     Object name=INWARDSPOLICYDETAILS     Cost=9934     Cardinality=820724     Bytes=27083892
TABLE ACCESS FULL     Object owner=ODS     Object name=INWARDSPOLICYLOBMAPPING     Cost=741     Cardinality=866377     Bytes=14728409
VIEW     Object owner=SYS     Object name=VW_GBF_16     Cost=7059     Cardinality=227882     Bytes=11621982
HASH GROUP BY               Cost=7059     Cardinality=227882     Bytes=6836460
VIEW     Object owner=ODS          Cost=5195     Cardinality=227882     Bytes=6836460
HASH GROUP BY               Cost=5195     Cardinality=227882     Bytes=4785522
PARTITION HASH ALL               Cost=3717     Cardinality=227882     Bytes=4785522
TABLE ACCESS FULL     Object owner=ODS     Object name=AVN_F_TRANSACTIONS     Cost=3717     Cardinality=227882     Bytes=4785522

Oracle 11g performance issue ( BITMAP CONVERSION TO ROWIDS)

I have two instance of oracle 11g.
in both instance i fired same query.
one instance returns the result in 1sec but other instance returns the result in 10 sec
following is explain plan for bot instance
instance 1
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 143 | 59 (2)| 00:00:01 |
| 1 | HASH GROUP BY | | 1 | 143 | 59 (2)| 00:00:01 |
| 2 | VIEW | VM_NWVW_2 | 1 | 143 | 59 (2)| 00:00:01 |
| 3 | HASH UNIQUE | | 1 | 239 | 59 (2)| 00:00:01 |
| 4 | NESTED LOOPS | | | | | |
| 5 | NESTED LOOPS | | 1 | 239 | 58 (0)| 00:00:01 |
PLAN_TABLE_OUTPUT
| 6 | NESTED LOOPS | | 1 | 221 | 57 (0)| 00:00:01 |
| 7 | NESTED LOOPS | | 1 | 210 | 55 (0)| 00:00:01 |
| 8 | NESTED LOOPS | | 1 | 184 | 54 (0)| 00:00:01 |
| 9 | NESTED LOOPS | | 1 | 158 | 53 (0)| 00:00:01 |
| 10 | NESTED LOOPS | | 1 | 139 | 52 (0)| 00:00:01 |
| 11 | NESTED LOOPS | | 1 | 105 | 50 (0)| 00:00:01 |
|* 12 | INDEX RANGE SCAN | year_field | 1 | 29 | 2 (0)| 00:00:01 |
| 13 | SORT AGGREGATE | | 1 | 8 | | |
| 14 | INDEX FULL SCAN (MIN/MAX)| idx_bf_creation_date | 1 | 8 | 2 (0)| 00:00:01 |
|* 15 | TABLE ACCESS BY INDEX ROWID| OHRT_bugs_fact | 1 | 76 | 48 (0)| 00:00:01 |
|* 16 | INDEX RANGE SCAN | idx_bf_creation_date | 76 | | 1 (0)| 00:00:01 |
PLAN_TABLE_OUTPUT
|* 17 | TABLE ACCESS BY INDEX ROWID | OHRT_all_time_dimension | 1 | 34 | 2 (0)| 00:00:01 |
|* 18 | INDEX UNIQUE SCAN | unique_alltime_bug_instance_id | 1 | | 1 (0)| 00:00:01 |
| 19 | TABLE ACCESS BY INDEX ROWID | OHRT_all_time_dimension | 1 | 19 | 1 (0)| 00:00:01 |
|* 20 | INDEX UNIQUE SCAN | unique_alltime_bug_instance_id | 1 | | 1 (0)| 00:00:01 |
|* 21 | INDEX RANGE SCAN | bugseverity_instance_id_ref_id | 1 | 26 | 1 (0)| 00:00:01 |
|* 22 | INDEX UNIQUE SCAN | unique_alltime_bug_instance_id | 1 | 26 | 1 (0)| 00:00:01 |
| 23 | INLIST ITERATOR | | | | | |
|* 24 | TABLE ACCESS BY INDEX ROWID | OHMT_ANL_BUCKET | 1 | 11 | 2 (0)| 00:00:01 |
|* 25 | INDEX UNIQUE SCAN | SYS_C0053213 | 5 | | 1 (0)| 00:00:01 |
|* 26 | INDEX RANGE SCAN | FK_BUCKET_TYPE | 6 | | 0 (0)| 00:00:01 |
|* 27 | TABLE ACCESS BY INDEX ROWID | OHMT_ANL_BUCKET | 1 | 18 | 1 (0)| 00:00:01 |
instance 2
Plan
SELECT STATEMENT ALL_ROWS Cost: 22 Bytes: 142 Cardinality: 1
32 HASH GROUP BY Cost: 22 Bytes: 142 Cardinality: 1
31 VIEW VIEW SYS.VM_NWVW_2 Cost: 22 Bytes: 142 Cardinality: 1
30 HASH UNIQUE Cost: 22 Bytes: 237 Cardinality: 1
29 NESTED LOOPS
27 NESTED LOOPS Cost: 21 Bytes: 237 Cardinality: 1
25 NESTED LOOPS Cost: 20 Bytes: 219 Cardinality: 1
21 NESTED LOOPS Cost: 18 Bytes: 208 Cardinality: 1
19 NESTED LOOPS Cost: 17 Bytes: 183 Cardinality: 1
17 NESTED LOOPS Cost: 16 Bytes: 157 Cardinality: 1
14 NESTED LOOPS Cost: 15 Bytes: 138 Cardinality: 1
11 NESTED LOOPS Cost: 13 Bytes: 104 Cardinality: 1
3 INDEX RANGE SCAN INDEX REPORTSDB.year_field Cost: 2 Bytes: 29 Cardinality: 1
2 SORT AGGREGATE Bytes: 8 Cardinality: 1
1 INDEX FULL SCAN (MIN/MAX) INDEX REPORTSDB.idx_bf_creation_date Cost: 3 Bytes: 8 Cardinality: 1
10 TABLE ACCESS BY INDEX ROWID TABLE REPORTSDB.OHRT_bugs_fact Cost: 13 Bytes: 75 Cardinality: 1
9 BITMAP CONVERSION TO ROWIDS
8 BITMAP AND
5 BITMAP CONVERSION FROM ROWIDS
4 INDEX RANGE SCAN INDEX REPORTSDB.idx_OHRT_bugs_fact_2product Cost: 2 Cardinality: 85
7 BITMAP CONVERSION FROM ROWIDS
6 INDEX RANGE SCAN INDEX REPORTSDB.idx_bf_creation_date Cost: 2 Cardinality: 85
13 TABLE ACCESS BY INDEX ROWID TABLE REPORTSDB.OHRT_all_time_dimension Cost: 2 Bytes: 34 Cardinality: 1
12 INDEX UNIQUE SCAN INDEX (UNIQUE) REPORTSDB.unique_alltime_bug_instance_id Cost: 1 Cardinality: 1
16 TABLE ACCESS BY INDEX ROWID TABLE REPORTSDB.OHRT_all_time_dimension Cost: 1 Bytes: 19 Cardinality: 1
15 INDEX UNIQUE SCAN INDEX (UNIQUE) REPORTSDB.unique_alltime_bug_instance_id Cost: 1 Cardinality: 1
18 INDEX UNIQUE SCAN INDEX (UNIQUE) REPORTSDB.unique_alltime_bug_instance_id Cost: 1 Bytes: 26 Cardinality: 1
20 INDEX RANGE SCAN INDEX REPORTSDB.bugseverity_instance_id_ref_id Cost: 1 Bytes: 25 Cardinality: 1
24 INLIST ITERATOR
23 TABLE ACCESS BY INDEX ROWID TABLE OPSHUB.OHMT_ANL_BUCKET Cost: 2 Bytes: 11 Cardinality: 1
22 INDEX UNIQUE SCAN INDEX (UNIQUE) OPSHUB.SYS_C0040939 Cost: 1 Cardinality: 5
26 INDEX RANGE SCAN INDEX OPSHUB.FK_BUCKET_TYPE Cost: 0 Cardinality: 6
28 TABLE ACCESS BY INDEX ROWID TABLE OPSHUB.OHMT_ANL_BUCKET Cost: 1 Bytes: 18 Cardinality: 1
in both explain plan only difference is
9 BITMAP CONVERSION TO ROWIDS
8 BITMAP AND
5 BITMAP CONVERSION FROM ROWIDS
but is bitmap degrading performance lot?
or suggest me what other parameter i can see so 2nd instance gives me better performace.

I see more differences.
In plan 1:
* 16 INDEX RANGE SCAN idx_bf_creation_date 76 1 (0) 00:00:01
in Plan 2:
1 INDEX FULL SCAN (MIN/MAX) INDEX REPORTSDB.idx_bf_creation_date Cost: 3 Bytes: 8 Cardinality: 1
So this is not about "bitmap" good/bad, it about the access strategy which changed due to differences in data statistics etc. To analyze more, I'd help a LOT if those plans would be formated in a good and same way, use around it to do so.

Oracle 10g vs Oracle 11g query performance

Hi everyone,
We are moving from Oracle 10g to Oracle 11g database.
I have a query which in Oracle 1g takes 85 seconds to run, but when I run the same query in Oracle 11g database, it takes 635 seconds.
I have confirmed that all indexes on tables involved are enabled.
Does anyone have any pointers, what should I look into. I have compared explain plans and clearly they are different. Oracle 11g is taking a different approach than Oracle 1g.
Thanks

Pl post details of OS versions, exact database versions (to 4 digits) and init.ora parameters of the 10g and 11g databases. Have statistics been gathered after the upgrade ?
For posting tuning requests, pl see these threads
HOW TO: Post a SQL statement tuning request - template posting
When your query takes too long ...
Pl see if the SQL Performance Analyzer can help - MOS Doc 562899.1 (TESTING SQL PERFORMANCE IMPACT OF AN ORACLE 9i TO ORACLE DATABASE 10g RELEASE 2 UPGRADE WITH SQL PERFORMANCE ANALYZER)
HTH
Srini

Oracle 11g Database Performance

We have Oracle 11g (11.1.0.6) database on HP-UX (IA). It’s around 200G database, and we have lot of batch job and reports running against this database. This database is performing really bad, whenever we restart the application and the database its performing good batch jobs are running for 2 hrs, the time will increase gradually and after few days same job taking more that 20 hrs some times its not even complete we manually kill it.
So I am guessing this is related to memory (SGA) issue, we have configured automatic memory management. But I don’t know where/what to look to find the root cause. Can some one help me to find a problem?

Database Memory Details_
SQL> select * from V_$SGA_TARGET_ADVICE;
SGA_SIZE SGA_SIZE_FACTOR ESTD_DB_TIME ESTD_DB_TIME_FACTOR ESTD_PHYSICAL_READS
     13312               1       267849                   1           110687043
      3328             .25      1147710              4.2849           231524088
      6656              .5       560074               2.091           149969875
      9984             .75       353321              1.3191           121279793
     16640            1.25       228583               .8534           106547348
     19968             1.5       204503               .7635           103204599
     23296            1.75       139577               .5211            94194674
     26624               2       139577               .5211            94194674
8 rows selected.
SQL>
SQL>
SQL> show sga;
Total System Global Area 1.6034E+10 bytes
Fixed Size                  2112960 bytes
Variable Size            3422552640 bytes
Database Buffers         1.2549E+10 bytes
Redo Buffers               60190720 bytes
SQL>
SQL>
SQL> show parameter;
NAME                                 TYPE        VALUE
memory_max_target                    big integer 15G
memory_target                        big integer 15G
pga_aggregate_target                 big integer 512M
sga_target                           big integer 13G
sga_max_size                         big integer 15G
SQL>
SQL>
Memory & CPU_
Load averages: 0.10, 0.12, 0.12
319 processes: 263 sleeping, 56 running
Cpu states:
CPU   LOAD   USER   NICE    SYS   IDLE BLOCK SWAIT   INTR   SSYS
0    0.07   1.6%   0.0%   1.8% 96.6%   0.0%   0.0%   0.0%   0.0%
2    0.13   3.6%   0.0%   1.4% 95.0%   0.0%   0.0%   0.0%   0.0%
4    0.12   7.3%   0.0%   4.0% 88.7%   0.0%   0.0%   0.0%   0.0%
6    0.09   3.6%   0.0%   4.4% 92.1%   0.0%   0.0%   0.0%   0.0%
avg   0.10   4.0%   0.0%   2.8% 93.2%   0.0%   0.0%   0.0%   0.0%
System Page Size: 4Kbytes
Memory: 16795892K (5385924K) real, 19681732K (6338872K) virtual, 1122788K free Page# 1/6

'Maximum Performance' protection in oracle 11g

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