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Re: Performance Tuning

From: <michael_bialik_at_my-deja.com>
Date: Thu, 07 Oct 1999 20:54:07 GMT
Message-ID: <7tj198$9rv$1@nnrp1.deja.com>


Hi.

 Can you post the result of
 " SELECT name, value FROM v$sysstat ORDER BY 1" ?  It looks like you have performance problem in your  application and NOT system.

 Michael.

In article <37fc8e19_2_at_news1.prserv.net>,   "Stephen Gabor" <sgabor_at_removethis.jamesway.com> wrote:
> I am relatively new to Oracle having started working with it about a
year
> ago. I am trying to tune and understand the performance of my
server. I
> think I must be missing something because the tuning report seems to
be
> getting worse not better.
>
> Server is Compaq Proliant 6000 running Oracle 7.3.4 and Baan 4c3.
> 4 x 450 MHz Xeon
> 1 GB RAM (Average 400MB Free)
> Internal Storage
> 9.1 GB HDD - NT, OS Swap Tools (ArcServe, Scripts, etc.)
> 9.1 GB HDD - Baan Application
> 18.2 GB HDD - Archived Redo Logs
> External Storage - Fiber Channel
> 9.1 GB HDD - Oracle Executables, Redo Log Group A
> 3 x 9.1 GB HDD - Baan Tables
> 2 x 9.1 GB HDD - Baan Indicies, and Users TEMP
> 1 x 9.1 GB HDD - Rollback, and Developers TEMP
> 1 x 9.1 GB HDD - System, Developers Tables/Indidices
> 1 x 9.1 GB HDD - Redo Logs Group B and Dump
>
> Any help or guidance would be appreciated
>
> Thanks
>
> Stephen
>
> ----------
>
> From: Dave Sisk's Oracle on NT Site - Check Tuning Script:
>
> Current Date and Time: 10/06/1999 23:55:02
> Database name: BAAN
> Measurement Goal Value Action
> ------------------------------ ------ -----------



> -----------------------
> Library cache hit percent >=0.99 1.00 Increase the
> SHARED_POOL_SIZE in INIT.ORA
> -- Current value: shared_pool_size = 60000000
> Dictionary cache hit percent >=0.90 0.94 OK
> Buffer cache hit percent >=0.90 0.97 OK
> Sort area hit percent >=0.90 0.74 Increase the
> SORT_AREA_SIZE in INIT.ORA
> -- Current value: sort_area_size = 16384
> Redo Log space requests =0 14 Increase the
LOG_BUFFER in
> INIT.ORA
> " Examine Redo Log
size
> " Examine number of
Redo Log
> groups
> -- Current value: log_buffer = 78643200
> -- Current value: redo log size = 52428800
> -- Current value: # of redo log groups = 9
> Enqueue waits =0 615 Increase the
> ENQUEUE_RESOURCES in INIT.ORA
> -- Current value: enqueue_resources = 10000
> Checkpoints not completed <=1 2 Increase
> LOG_CHECKPOINT_INTERVAL in INIT.ORA
> " Examine
> LOG_CHECKPOINT_TIMEOUT in INIT.ORA
> " Examine Redo Log
size
> -- Current value: log_checkpoint_interval = 5000
> -- Current value: log_checkpoint_timeout = 0
> -- Current value: redo log size = 52428800
> Rollback contention ratio <=0.01 0.00 OK
> Redo allocation latch miss (W) <=0.01 0.00 OK
> Redo allocation latch miss (I) <=0.01 0.00 OK
> Redo copy latch miss (WTW) <=0.01 0.74 Increase
> LOG_SIMULTANEOUS_COPIES 2xCPU in INIT.ORA
> -- Current value: log_simultaneous_copies = 16
> -- Current value: log_small_entry_max_size = 80
> Redo copy latch miss (Immed) <=0.01 0.00 OK
> Freelist contention ratio <=0.01 0.00 OK
>
> Init.ora File:
>
> db_name = BAAN
> db_files = 50
> control_files = (K:\ORADATA\ctl1BAAN.ora,
> G:\ORADATA\ctl2BAAN.ora,
> E:\ORADATA\ctl3BAAN.ora,
> J:\ORADATA\ctl4BAAN.ora )
> compatible = 7.3.0
> transactions = 10000
> shared_pool_size = 60000000
> processes = 1000
> dml_locks = 8192
> enqueue_resources = 10000
> sequence_cache_entries = 100
> sequence_cache_hash_buckets = 89
> pre_page_sga = TRUE
> max_dump_file_size = 10240
> background_dump_dest = %RDBMS73%\trace
> user_dump_dest = %RDBMS73%\trace
> remote_login_passwordfile = shared
> text_enable = true
> # Hash
> hash_area_size = 16384
> hash_multiblock_io_count = 2
> hash_join_enabled = true
> bitmap_merge_area_size = 65536
> # DB parameters
> db_block_buffers = 40000
> db_block_size = 8192
> db_block_checkpoint_batch = 8
> db_file_simultaneous_writes = 8
> db_block_lru_latches = 4
> db_file_multiblock_read_count = 16
> # Cursors information
> session_cached_cursors = 2048
> open_cursors = 2048
> row_cache_cursors = 1024
> cursor_space_for_time = true
> # Sort
> sort_area_size = 16384
> sort_area_retained_size = 0
> sort_read_fac = 20
> sort_write_buffer_size = 16384
> sort_write_buffers = 3
> sort_direct_writes = true
> #
> # Rollback information
> temporary_table_locks = 2205
> max_rollback_Segments = 400
> # Redolog information
> #
> log_buffer = 78643200
> log_checkpoints_to_alert = true
> log_checkpoint_interval = 5000
> checkpoint_process = TRUE
> log_archive_start = TRUE
> log_archive_dest = M:\ORADATA\ARCHIVE
> log_archive_format = ARC%s.ARC
> log_simultaneous_copies = 16
> 
>
>

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Before you buy. Received on Thu Oct 07 1999 - 15:54:07 CDT

Original text of this message

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