--- "Raphael A. Bauer" <raphael.bauer@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hi members, > > i am just wondering if anybody knows a good place > where to find general > optimization strategies for the TPC-H Benchmark and > Oracle 9i. > (eg "using this MV performs good with those > queries.. and these Indexes > are cool for..."). > .. > Thanks ! > > Raphael Raphael, I recall seeing a post by Jonathan Lewis regarding the use of single table hash clusters with tpc-c. Aren't the create table scripts usually supplied in the appendix of the reports? Does the -H stand for "ad-hoc", "Histograms", "Heroic dose of hardware" or "Hectare of server room to accomodate the hardware footprint"? It would appear from the HP DL740 + Oracle 10g that RAC + partitioning is used, as well as 4 MB cache per CPU, 8 GB memory per node, 896 physical disks. "Implementation of RAID Implementations may use some form of RAID to ensure high availability. If used for data, auxiliary storage (e.g. indexes) or temporary space, the level of RAID used must be disclosed for each device. RAID 0+1 was used for the entire database and redo log files." "Data Storage Ratio The data storage ratio must be disclosed. It is computed by dividing the total data storage of the priced configuration (expressed in GB) by the size chosen for the test database as defined in 4.1.3.1. The ratio must be reported to the nearest 1/100th, rounded up. 10.75" so they used less than 1/10th of the available storage. sounds good to me, I like using about 1/8th. http://www.tpc.org/results/FDR/tpch/HP_%20ProLiantDL740Cluster_32P_040302_FDR.pdf controlfiles were on raw volumes db_block_size=16384 db_file_multiblock_read_count = 128 pga_aggregate_target=6g strange, they appeared to not have session_cached_cursors set. they loaded from flat files using external tables. orders tables range partitioned into 84 divisions, hash sub partitioned into 64 tablespaces, degree of parallelism 64. indexes had initrans 10, freelist groups 8 (= number of nodes) freelists 99. I don't think that they were too worried about disk space usage;). customers tables were hash partitioned. parts supplier tables were in hash partitioned IOTs. segment compression was used. they pre-allocated extents - big ones. its only 131 pages, why not read the entire doc? Pd ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------